Office (OLE) / .DOC malware analysis — malicious · 353903d7b90942b9

MALICIOUS

Office (OLE) / .DOC

161.1 KB Created: 2020-09-23 21:50:00 Authoring application: Microsoft Office Word

MD5: 69df7ca356ed8230e2cbe87fc8db6fd3 SHA-1: c11822fec65094102609caa04cd7952dc530ce6f SHA-256: 353903d7b90942b9e45059e7a1ea56eea91c412f5cf0864982870f55f9e61e98

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC indicate the presence of a malicious VBA macro designed to execute automatically upon opening the document. This macro likely downloads and executes a second-stage payload, as suggested by the 'Doc.Downloader' classification. No specific family could be identified, and the document body content was not sufficiently informative to determine the lure.

Heuristics 7

ClamAV: Doc.Downloader.Mryv-9765643-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Mryv-9765643-0
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` `73025ddea320f2b071eb07bf918853ac1d6bc1ed1503c9c9400830c79e2af1db`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19787 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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