Malicious
Malicious
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This sample is a 247.5 KB MS Office Document classified as malicious by Malva.RE. Static analysis extracted 28 embedded or derived files. It matches 12 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
b50cbccb118983cef416958e90cb75d8c7dc2b4466f6687ca8916acdf5fcb450
MD5
dbc9e597e02bc10f17477cc4497ec17c
Verdict
Malicious
File type
MS Office Document · 247.5 KB
MITRE ATT&CK
T1027T1059.005T1105

Cite this report: https://app.malva.re/sha256/b50cbccb118983cef416958e90cb75d8c7dc2b4466f6687ca8916acdf5fcb450

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File
Type
Microsoft Office Document
Size
253.44 KB · 253,440 B
First seen
2026-10-26 07:30 · 6 days ago
Last seen
2026-10-26 07:30 · 6 days ago
Last analysis
2026-10-26 07:30 · 6 days ago
Hashes
MD5 dbc9e597e02bc10f17477cc4497ec17c Sha1 d8ac2c4db3bb5896747fe5e9c18f6703f2627847 Sha256 b50cbccb118983cef416958e90cb75d8c7dc2b4466f6687ca8916acdf5fcb450 Sha384 9e00cb3fc8624abf4c145be2168327a931e2d03ca32d4e9af4715f00a10e55b6888a1c619e407b2ac4199661756ef247 Sha512 57cf20e7157e300e3aa4582293b8671b0d3a0c88d34267ed858d29cd719fc319401d691f865f21701c6aed9e04d18cedc67ee79f5ee04e89acbd8348b7998576 SSDeep 6144:7xEtjPOtioVjDGUU1qfDlavx+W2QnA1rQsHBGilkW8a+TJJp/vC7zoVmzV4ZeTYg:FkskWOlCAImZYMFY TLSH 4044AE53B1569DC2D50C83F46D9787E62F22EF09DA56AFCB2150BF0EFB702924C1A125

17 malicious · 29 files
OFFdbc9e597e02bc10f17477cc4497ec17c
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
VBA[Full Diff]
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.
5 / 5
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~T1564.007
Shape ole:doc>ole:vba
malicious 2 nodes

Trace COM ordonnée UNKNWOWNmalicious
line 4huhuhuhuhuhuhuhuhuhuhu
Trace COM ordonnée UNKNWOWNmalicious
line 2huhuhuhuhuhuhuhuhuhuhu
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17 malicious · 29 files
OFFdbc9e597e02bc10f17477cc4497ec17c
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
VBA[Full Diff]
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 4huhuhuhuhuhuhuhuhuhuhu
dbc9e597e02bc10f17477cc4497ec17c › Root Entry › _VBA_PROJECT_CUR › VBA › ThisWorkbook › [Decompiled VBA]
Trace COM ordonnée UNKNWOWNmalicious
line 2huhuhuhuhuhuhuhuhuhuhu
dbc9e597e02bc10f17477cc4497ec17c › Root Entry › _VBA_PROJECT_CUR › VBA › ThisWorkbook › [Stored VBA]
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