Office (OLE) / .DOC malware analysis — malicious · d5dbceaabf6144b9

MALICIOUS

Office (OLE) / .DOC

126.5 KB Created: 2020-03-15 22:32:00 Authoring application: Microsoft Office Word

MD5: 87baf2670b5a89b9bd8e82a7a49f52cf SHA-1: 5db0b12b621f53713d583708cb6921fee4196787 SHA-256: d5dbceaabf6144b98dcb666b3ad38f19c7ac9cd386781ebc19de5be8f2651ff9

222 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1140 Deobfuscate or Obfuscate Malicious Code

The document is disguised as a court filing or research form, with prominent prompts to 'enable editing' and 'enable macros'. Heuristics indicate the presence of VBA macros, specifically a Document_Open macro that uses GetObject, suggesting it's designed to execute automatically upon opening. The embedded URL http://www.firstlegal.com is likely part of the lure. The ClamAV detection as 'Xls.Malware.Generic-7646516-0' further supports its malicious nature. The VBA macros are likely responsible for downloading and executing a second-stage payload.

Heuristics 8

ClamAV: Xls.Malware.Generic-7646516-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Malware.Generic-7646516-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Suspicious extracted artifact info 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.
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://www.firstlegal.com
- http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `688c71159a0678bec7dd3eb0aafd62c70a5414f8002ffdcc627a94803bec4123`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	3448 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).

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