Malicious MS Office Document analysis – 10febbe11787

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This sample is a 246.5 KB MS Office Document for which Malva.RE's static analysis did not establish a malicious verdict. 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: 10febbe117878eb4949f7bad97bdc5a8c86f69ca9edffcdf801a215a403ecbd6
MD5: e36455207a595f37c1362d77a6c40b35
Verdict: Malicious
File type: MS Office Document · 246.5 KB
MITRE ATT&CK: T1027 T1059.005 T1105

Cite this report: https://app.malva.re/sha256/10febbe117878eb4949f7bad97bdc5a8c86f69ca9edffcdf801a215a403ecbd6

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File

Type

Microsoft Office Document

Size

252.42 KB · 252,416 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 e36455207a595f37c1362d77a6c40b35 Sha1 443defeaf4e6b3b6781eddcdc6f6302a4ac069fb Sha256 10febbe117878eb4949f7bad97bdc5a8c86f69ca9edffcdf801a215a403ecbd6 Sha384 249776e535b099be268857125e13ceefa5db9c04d31a0bd14cab0efd5a1752ee73a6d6b577295da3119cfb0b9fec0edd Sha512 14aa50d8df398257f68447ffdedc838a6fd32083e516292b29f4c8ac99e1cf7f31a3e2f1c1d5a1075022423d8042920a2f9d51e94893b85841586ba10466179a SSDeep 6144:QxEtjPOtioVjDGUU1qfDlavx+W2QnA1rQsHBGilkW8a+TJJp/vC7zoVmzV4ZeTYJ:YkskWOlCAImZYMH TLSH EF34AE53B1529DC2D54C83F46D9787EA2F22EF09DA56AFCB2150BF0EBB702934C1A125

17 malicious · 29 files

OFFe36455207a595f37c1362d77a6c40b35

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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	Module Name0
	Module1	VBA Stomping ATT&CK T1564.007 Malicious Malicious Document VBA Macro
PCode Decompiled VBA Stored VBA Partial Diff. Full Diff. 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
PCode Decompiled VBA Stored VBA Partial Diff. Full Diff. 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.

e36455207a595f37c1362d77a6c40b35

Overview

Summary by MalvaGPT

Characteristics

File Structure

Artefacts2

e36455207a595f37c1362d77a6c40b35 (252.42 KB)

File Structure

Artefacts2