Office (OLE) / .DOC malware analysis — malicious · 3d808601a47c9ae6

MALICIOUS

Office (OLE) / .DOC

82.0 KB Created: 2017-04-11 15:45:00 Authoring application: Microsoft Office Word

MD5: b6bf42a76eb8cea70cb0a9ba2b8f31d5 SHA-1: fc27036fefb683e218140e1f0af78f23d711a866 SHA-256: 3d808601a47c9ae6c1c121a5eb3297ebb8a75f3663cc425f92fc541b90c8200e

290 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1204.002 Malicious File T1059.003 Windows Command Shell

The sample is a malicious OLE document containing VBA macros. The critical heuristic 'OLE_VBA_SHELL' and the critical ClamAV detection 'Doc.Dropper.Agent-6531544-0' indicate malicious intent. The 'SE_ENABLE_LURE' heuristic confirms the document attempts to trick the user into enabling macros. The VBA macros, specifically the AutoOpen function, are designed to execute commands via Shell(), likely to download and run a second-stage payload. The script content is heavily obfuscated and truncated, preventing a more detailed analysis of its specific actions.

Heuristics 9

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Dropper.Agent-6531544-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Agent-6531544-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen 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.
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
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Environ() call (env variable access) low OLE_VBA_ENVIRON

Environ() call (env variable access)
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` `e2dc56f3592bbaa8fd83df5b384d9fe2f999099f57c5fea0a7a151690e97324c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21445 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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