Office (OLE) malware analysis — malicious · 2c6ca31796c6f4c0

MALICIOUS

Office (OLE)

1.11 MB Created: 2000-04-17 12:48:51 Authoring application: Microsoft Excel

MD5: fbfd777c6e4f2426489eb383b2a834d0 SHA-1: 31257f152e0a1c3840d2e3d1db05a94b216ffae5 SHA-256: 2c6ca31796c6f4c0bec5e3d7d19ee7e6b4940e981b6bf3662dfc3948e7b31b83

240 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.005 Visual Basic

The file is an Excel document containing a VBA macro, specifically an Auto_Open macro, which is a common technique for malware execution. Heuristics indicate the document uses a lure to trick the user into enabling macros. ClamAV detections identify the file as Ppt.Malware.Laroux-10036124-0 and an extracted artifact as Xls.Trojan.Escape-1. The VBA macro is likely responsible for downloading and executing a secondary payload, although the specific actions are not fully detailed due to obfuscation.

Heuristics 6

ClamAV: Ppt.Malware.Laroux-10036124-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Ppt.Malware.Laroux-10036124-0
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
Auto_Open macro high OLE_VBA_AUTO

Auto_Open macro
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
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `d9487910b19a2f32c8c3e4f6bb694c19650f355d12878170fcf29637c8c4218b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	76882 bytes
Detection ClamAV: Xls.Trojan.Escape-1 Obfuscation or payload: likely Carved artifact contains 58 Chr/ChrW string-construction calls.

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