Office (OLE) / .DOC malware analysis — malicious · 36d85a22ed91060a

MALICIOUS

Office (OLE) / .DOC

152.7 KB Created: 2020-09-24 05:47:00 Authoring application: Microsoft Office Word

MD5: fbd06896f2781e04179c832c9a71594d SHA-1: 84b3304974c5bfca48a7539dbffad505f5981abf SHA-256: 36d85a22ed91060a9856d8e691083a49da8ba00d0d3d7fb87819e36fe325c31d

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a malicious OLE document containing VBA macros. The 'Document_Open' macro is configured to auto-execute upon opening, utilizing 'CreateObject' to initiate a PowerShell command. This command is designed to download and execute a second-stage payload, as indicated by the critical ClamAV detection and the presence of the 'macros.bas' artifact. The document body content appears to be obfuscated or corrupted, providing no direct clues to the lure.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
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` `b0798fb7450882311ba60b57e039433588cb794c6cc8a10f75d1de73c5c7973a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19490 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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