Office (OLE) / .DOC malware analysis — malicious · a8ede5b4e9ad5f52

MALICIOUS

Office (OLE) / .DOC

91.5 KB Created: 2018-06-08 22:11:00 Authoring application: Microsoft Office Word

MD5: 8ab1eb11519d5a556284d0e6d006b331 SHA-1: c4689ad2bd4082c3986c747ac25bfd9296097673 SHA-256: a8ede5b4e9ad5f52a3c28142fa26a4c2caa2d9bd9e73aead41942d31986e4abe

260 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a VBA macro with an AutoOpen function that utilizes the Shell() command, indicating it's designed to execute arbitrary code. ClamAV detection of 'Doc.Malware.Powload-6799120-0' further confirms its malicious nature. The macro's execution of a secondary payload is the primary attack vector.

Heuristics 7

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Malware.Powload-6799120-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Powload-6799120-0
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
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` `042347550a96938b1822e75d9ac05b5c89a7d159eb992d5a6fae18651c742fb1`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	12644 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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