Office (OLE) / .DOC malware analysis — malicious · 31fa4dbfbd9c10bc

MALICIOUS

Office (OLE) / .DOC

203.0 KB Created: 2018-07-18 20:09:00 Authoring application: Microsoft Office Word

MD5: c75715085b8643d8ef48d3d6d07775f0 SHA-1: 1c4f0215bb1d08c742efbf8b2cd928ff258cdb83 SHA-256: 31fa4dbfbd9c10bccf326f2524c4c458cdc972886a4558b01237cdefe84e5434

260 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell

The sample is a malicious Office document containing a Document_Open VBA macro. This macro utilizes the Shell() function, indicating it is designed to execute external commands. The ClamAV detection name 'Doc.Malware.Powload-6781731-0' strongly suggests a payload download and execution behavior, common for PowerLoader variants. The VBA p-code analysis confirms auto-execution of Shell() within the Document_open macro, further supporting this attack pattern.

Heuristics 7

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Malware.Powload-6781731-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Powload-6781731-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open 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` `5aae576195aa9a35843c255b0860305eeda661e47f6e599186d30adb1a211485`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	42171 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 13 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.