Malicious
Malicious

This sample is a 246 KB MS Office Document for which Malva.RE's static analysis did not establish a malicious verdict. Static analysis extracted 29 embedded or derived files. It matches 15 YARA rules. Observed behaviours map to MITRE ATT&CK T1027, T1059.005 and T1105. The file was analysed statically: it was parsed and decompiled, never executed.

SHA256
0661676bd008f89ff77f3f59feba369208b20a3e48a845dd211699c07c346d2f
MD5
37ffa3c3d3d6409ae7ae1d1daa639025
Verdict
Malicious
File type
MS Office Document · 246 KB
MITRE ATT&CK
T1027T1059.005T1105

Cite this report: https://app.malva.re/sha256/0661676bd008f89ff77f3f59feba369208b20a3e48a845dd211699c07c346d2f

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File
Type
Microsoft Office Document
Size
251.9 KB · 251,904 B
First seen
2026-10-25 11:00 · 13 hours ago
Last seen
2026-10-25 11:00 · 13 hours ago
Last analysis
2026-10-25 11:00 · 13 hours ago
Hashes
MD5 37ffa3c3d3d6409ae7ae1d1daa639025 Sha1 b1356285f350beb680eabea8778976040390f336 Sha256 0661676bd008f89ff77f3f59feba369208b20a3e48a845dd211699c07c346d2f Sha384 8731655801bac9bc47ce79ac8d83b10aafdfa8b330c1217c40bb31c140d4c3f5d1ebdfcb98722cbf7896a950f77777b4 Sha512 665513ecc8833be6eeeceaefaa4344a8ca3650fa3a46e3cf2be7399812b690387f0c10932f15b8146f2d6c42d43b3342e4515b16f6b9bf63d7f1a6659b5ae850 SSDeep 6144:6xEtjPOtioVjDGUU1qfDlavx+W2QnALrQsHBGilkW8a+TJJp/vC7zoVmzV4ZeTYV:QkskWOlCAImZYMt TLSH D934AD53B2529DC2D50C83F86E9787E62F21AF15DA56AFCB2150BF4EFB702834C16225

18 malicious · 30 files
OFF37ffa3c3d3d6409ae7ae1d1daa639025
BINRoot Entry
BINCompObj
BINWorkbook
BINSummaryInformation
BINDocumentSummaryInformation
BIN_VBA_PROJECT_CUR
BINPROJECT
BINPROJECTwm
BINVBA
BINdir
VBAModule1
VBS[Stored VBA]
VBS[Stored VBA].deobfuscated.vbs
VBA[PCode]
VBS[Decompiled VBA]
VBS[Decompiled VBA].deobfuscated.vbs
VBS[Full Diff]
VBS[Full Diff].deobfuscated.vbs
VBA[Partial Diff]
BIN__SRP_0
BIN__SRP_1
BIN__SRP_2
BIN__SRP_3
VBAThisWorkbook
VBS[Stored VBA]
VBS[Stored VBA].deobfuscated.vbs
VBA[PCode]
VBS[Decompiled VBA]
VBS[Decompiled VBA].deobfuscated.vbs
VBS[Full Diff]
VBS[Partial Diff]
BIN_VBA_PROJECT
STICH beta Structural Threat Infection Chain Hash

A content-independent fingerprint of the infection method: successive formats, internal objects and MITRE techniques from the initial file to each final payload.

STICH Path = the fingerprint (canonical chain with techniques) STICH Shape = structure only Only determinant branches produce STICH Paths.
6 / 6
Path ole:doc~T1027~T1059.005~T1564.007>bin
Shape ole:doc>bin
malicious 2 nodes
Path ole:doc~T1027~T1059.005~T1564.007>ole:vba~T1027~T1059.005~T1105~T1564.007
Shape ole:doc>ole:vba
malicious 2 nodes

Trace COM ordonnée UNKNWOWNmalicious
line 2huhuhuhuhuhuhuhuhuhuhu
Trace COM ordonnée UNKNWOWNmalicious
line 4huhuhuhuhuhuhuhuhuhuhu
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18 malicious · 30 files
OFF37ffa3c3d3d6409ae7ae1d1daa639025
BINRoot Entry
BINCompObj
BINWorkbook
BINSummaryInformation
BINDocumentSummaryInformation
BIN_VBA_PROJECT_CUR
BINPROJECT
BINPROJECTwm
BINVBA
BINdir
VBAModule1
VBS[Stored VBA]
VBS[Stored VBA].deobfuscated.vbs
VBA[PCode]
VBS[Decompiled VBA]
VBS[Decompiled VBA].deobfuscated.vbs
VBS[Full Diff]
VBS[Full Diff].deobfuscated.vbs
VBA[Partial Diff]
BIN__SRP_0
BIN__SRP_1
BIN__SRP_2
BIN__SRP_3
VBAThisWorkbook
VBS[Stored VBA]
VBS[Stored VBA].deobfuscated.vbs
VBA[PCode]
VBS[Decompiled VBA]
VBS[Decompiled VBA].deobfuscated.vbs
VBS[Full Diff]
VBS[Partial Diff]
BIN_VBA_PROJECT

vbaDNA - VBA Stomping & Purging Stategy detection

Module Name
Module1
VBA Stomping
ATT&CK T1564.007
Malicious
Malicious Document
VBA Macro

Missing P-Code: The Office document under analysis has been identified as having undergone VBA Purging techniques, as the P-Code block within the document is currently inaccessible. As a result, the decompilation of the code was not possible, leaving only the stored code available in textual format for analysis.

VBA Purging essentially involves the elimination of the PerformanceCache section from the module streams.

To fully erase any traces of the P-Code section, the MODULEOFFSET between the two sections is adjusted to 0 by altering the _VBA_PROJECT stream, and all SRP streams that also house PerformanceCache data are removed. Following the removal of the compiled code, antivirus engines and Yara rules, which depend on precise string matches, are rendered ineffective.

This allows macros to bypass them effortlessly, owing to the compressed format of the remaining source code.

ThisWorkbook
VBA Stomping
ATT&CK T1564.007
Malicious
Malicious Document
Blacklist VBA
VBA Macro

Missing P-Code: The Office document under analysis has been identified as having undergone VBA Purging techniques, as the P-Code block within the document is currently inaccessible. As a result, the decompilation of the code was not possible, leaving only the stored code available in textual format for analysis.

VBA Purging essentially involves the elimination of the PerformanceCache section from the module streams.

To fully erase any traces of the P-Code section, the MODULEOFFSET between the two sections is adjusted to 0 by altering the _VBA_PROJECT stream, and all SRP streams that also house PerformanceCache data are removed. Following the removal of the compiled code, antivirus engines and Yara rules, which depend on precise string matches, are rendered ineffective.

This allows macros to bypass them effortlessly, owing to the compressed format of the remaining source code.
No malware configuration was found at this point.

Trace COM ordonnée UNKNWOWNmalicious
line 2huhuhuhuhuhuhuhuhuhuhu
37ffa3c3d3d6409ae7ae1d1daa639025 › Root Entry › _VBA_PROJECT_CUR › VBA › ThisWorkbook › [Stored VBA]
Trace COM ordonnée UNKNWOWNmalicious
line 4huhuhuhuhuhuhuhuhuhuhu
37ffa3c3d3d6409ae7ae1d1daa639025 › Root Entry › _VBA_PROJECT_CUR › VBA › ThisWorkbook › [Decompiled VBA]
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