Malicious PDF — malware analysis report

Static analysis result for SHA-256 2af7c70a503660f2…

MALICIOUS

PDF

2.7 KB Created: 7234-01-01 Authoring application: 1728
MD5: 346bf6be3499537d368cf354d3d93521 SHA-1: 8804a606ab38819849d54c2744c78333cdd48f58 SHA-256: 2af7c70a503660f2db5fc12322d2e1e917a268a1fb7519d2f2854a26deef518f
96 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests a known exploit. The extracted JavaScript file exhibits obfuscation, typical of malware attempting to hide its malicious actions, which likely involve exploiting a PDF vulnerability to execute arbitrary code.

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
  • Suspicious extracted artifact medium 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.
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0013_001.js
c978114c1068f234043ea6fef892e3bb24f6a0ccb405af88a7615656115077d5
pdf-javascript-stream PDF /JS object 13 at offset 0x328 4792 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).