Office (OLE) / .DOC malware analysis — malicious · 3718b4761fdae2ab

MALICIOUS

Office (OLE) / .DOC

113.8 KB Created: 2018-06-08 06:54:00 Authoring application: Microsoft Office Word

MD5: 14a4611d5443d10b2de8849564138682 SHA-1: 0f997d0d9419dc7865824e1bdf02af3b6074be4c SHA-256: 3718b4761fdae2ab5dccd4306bd4a85258fb826fb27820475d408c40413236a4

260 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a Microsoft Word document containing VBA macros. The presence of an AutoOpen macro and a Shell() call indicates that the macros are designed to execute automatically upon opening the document. The ClamAV detection 'Doc.Malware.Powload-7012660-0' strongly suggests a known malware loader. The macros likely download and execute a second-stage payload, which is a common technique for malware delivery.

Heuristics 7

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Malware.Powload-7012660-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Powload-7012660-0
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` `f595a0e6520d7b1e9ba602a6fa407416a7aacdce3bfcd984e422038fbc9a3213`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	13923 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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