Office (OLE) / .DOC malware analysis — malicious · ae100e8e3080ce97

MALICIOUS

Office (OLE) / .DOC

155.8 KB Created: 2020-09-22 12:54:00 Authoring application: Microsoft Office Word

MD5: 10d255e80ceaff3c7cfebca430885113 SHA-1: 242cd2798569f8055964ce225ff8b4d6fae6ac66 SHA-256: ae100e8e3080ce973b2a6e817be779d8ebadd54ba534e03ff4772871cbec13f4

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a malicious OLE document containing VBA macros. The 'Document_Open' macro is configured to execute automatically, utilizing CreateObject and GetObject calls, which are indicative of malicious intent. ClamAV detection further confirms its malicious nature. The primary attack vector appears to be the execution of embedded VBA code, likely to download and execute a second-stage payload.

Heuristics 8

ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `63bc7201a259a9f3eac24fc4f9990c61de6bed3eb66abffd8ef4af2ac67d9b62`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15901 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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