Office (OLE) / .DOCX malware analysis — malicious · df241da2b59d56e9

MALICIOUS

Office (OLE) / .DOCX

157.2 KB Created: 2020-10-19 16:24:00 Authoring application: Microsoft Office Word

MD5: 2a25a1087564241191e932c3ba11c684 SHA-1: ffe3252b999e293de7bf9adc4213025d6a7f4d88 SHA-256: df241da2b59d56e983c61042162dafe0dfa6a0ebdce06e798ced5280230769cb

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically an auto-executing Document_Open macro that uses CreateObject, strongly indicate malicious intent. The presence of the macros.bas file further supports this. The document body appears to be heavily obfuscated, but the heuristics point to a macro that likely downloads and executes a second-stage payload.

Heuristics 7

ClamAV: Doc.Malware.Sagent-9780539-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Sagent-9780539-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `d0a6497cb07b10e3700967f3bfacfd7398ab919e1393e4e1ddda61d0b30c3f61`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15475 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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