Malicious Office (OLE) / .PPT — malware analysis report

Static analysis result for SHA-256 902d92c8b869fe25…

MALICIOUS

Office (OLE) / .PPT

92.5 KB Created: 2021-03-14 23:15:17 Authoring application: Microsoft Office PowerPoint
MD5: 94b5dda22f81433dc9282b766bbdd336 SHA-1: ecc3171ea5720db2fd83000941fcc2d4d618bbf1 SHA-256: 902d92c8b869fe25b212fe80b313b8bd7391482334a155942b6bbd96e3c2f481
142 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is a PowerPoint file containing a VBA Auto_Open macro. This macro is designed to execute code using the GetObject function, which is a common technique for launching malicious payloads. The presence of a large encoded blob within the VBA macros suggests obfuscation, likely to hide the execution of a second-stage payload. No specific family could be identified, but the technique is indicative of a downloader or dropper.

Heuristics 5

  • Auto_Open macro high OLE_VBA_AUTO
    Auto_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
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
18ca17ee9d1d22d1083a2e2f86306bd427ce8cb4d3355549ced230d5f0fa1247
vba-macro oletools.olevba.extract_macros (decoded VBA source) 14332 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).