Office (OLE) / .DOC malware analysis — malicious · f3736f17901c4bd5

MALICIOUS

Office (OLE) / .DOC

177.1 KB Created: 2020-09-18 22:05:00 Authoring application: Microsoft Office Word

MD5: f239eeb8699121cde32be5ca507bc8b1 SHA-1: 72677dd46088f252546dd739a3fdf7459aa79763 SHA-256: f3736f17901c4bd55b1b2ccafa48fe28f41c8d97e1ada11e37f1c52f6e9243ec

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a malicious Office document containing VBA macros, specifically triggering a Document_Open macro. The presence of CreateObject calls and p-code auto-execution indicates the macro is designed to run automatically. The ClamAV detection as 'Doc.Downloader.Generic' strongly suggests its purpose is to download and execute additional malware. No specific family could be identified, but the behavior points to a downloader.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763712-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763712-0
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` `f035cd1023dade0b5d5e126cbab797fd9aeb292e781548b39fa794a9356990ee`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19197 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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