Office (OLE) / .DOC malware analysis — malicious · 274c32ef67d815d2

MALICIOUS

Office (OLE) / .DOC

134.0 KB Created: 2020-09-17 13:28:00 Authoring application: Microsoft Office Word

MD5: 0ed579e82b32a657be324a2c33d46f22 SHA-1: bff83951f532a1f68218e7d054f30cf6f716fc4d SHA-256: 274c32ef67d815d2940933f2cee27794c964440d751ef76e737a77fcb4c4c3bf

182 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a VBA macro that is automatically executed upon opening the document (DOCUMenT_opeN). This macro, dfmzzkgEgITguBzVpee, calls VBA.Shell to execute a command. The command appears to be an attempt to download and execute a payload from the URL http://20.80.179.176/htm/oldone. The heuristic SE_LOLBIN_RUN_COMMAND also indicates the presence of a command execution attempt. The family is unknown as no specific indicators point to a known malware family.

Heuristics 6

Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
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.
LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND

Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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://20.80.179.176/htm/oldone
- http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `cb05244e28c2ecc56f5c72e6d8b59815c011f38735d46867c00d7afa354ef409`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	906 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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