Malicious
Malicious
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This sample is a 244.5 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
bd3638d874cd3365499e672b2951c6a8cf856b4349abced45aa77d6e991ce946
MD5
16730c05015985e503258f87288f88d6
Verdict
Malicious
File type
MS Office Document · 244.5 KB
MITRE ATT&CK
T1027T1059.005T1105

Cite this report: https://app.malva.re/sha256/bd3638d874cd3365499e672b2951c6a8cf856b4349abced45aa77d6e991ce946

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File
Type
Microsoft Office Document
Size
250.37 KB · 250,368 B
First seen
2026-10-26 07:30 · 4 days ago
Last seen
2026-10-26 07:30 · 4 days ago
Last analysis
2026-10-26 07:30 · 4 days ago
Hashes
MD5 16730c05015985e503258f87288f88d6 Sha1 f8068f0314277fcfcccd2fc1f0f125a7f9de9f56 Sha256 bd3638d874cd3365499e672b2951c6a8cf856b4349abced45aa77d6e991ce946 Sha384 80cd419a7e3aa7482fc712d60411b94f5a676411fe077c2f33a5d2e1152b09c9e6ac21963ae46ea973b09ba00239867d Sha512 36c6f905030f082d536a927670880528a215e8c91328356d718af38192ad456873b8180a41dbdf750ec657346e7b7e7c4316fcc6e1041f12d1a78f1e5f9ed3f0 SSDeep 6144:yxEtjPOtioVjDGUU1qfDlavx+W2QnALrQsHBGilkW8a+TJJp/vC7zoVmzV4ZeTY3:okskWOlCAImZYMh TLSH 5C34AE53B2529DC2D54C83F46D9787EA2F21EF09DA56AFCB2150BF0EFB702924C1A125

17 malicious · 29 files
OFF16730c05015985e503258f87288f88d6
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~T1059.005
Shape ole:doc>ole:vba
malicious 2 nodes

Trace COM ordonnée UNKNWOWNmalicious
line 2huhuhuhuhuhuhuhuhuhuhu
Trace COM ordonnée UNKNWOWNmalicious
line 4huhuhuhuhuhuhuhuhuhuhu
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17 malicious · 29 files
OFF16730c05015985e503258f87288f88d6
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 2huhuhuhuhuhuhuhuhuhuhu
16730c05015985e503258f87288f88d6 › Root Entry › _VBA_PROJECT_CUR › VBA › ThisWorkbook › [Stored VBA]
Trace COM ordonnée UNKNWOWNmalicious
line 4huhuhuhuhuhuhuhuhuhuhu
16730c05015985e503258f87288f88d6 › Root Entry › _VBA_PROJECT_CUR › VBA › ThisWorkbook › [Decompiled VBA]
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