PDF malware analysis — malicious · 7e7897c444e842f0

MALICIOUS

PDF

4.1 KB

MD5: 0c7fc5d78a44a84c0aa34e5184e8cbf1 SHA-1: 3e3d3402b30b31736a517acdd0b18c59b89ea969 SHA-256: 7e7897c444e842f0691f4ef2d3f7f5ee0e2fa798a8853e14b2d91510b5f3ab9a

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 Command and Scripting Interpreter: PowerShell T1204.002 Malicious File: User Execution: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The critical ClamAV detection (Pdf.Exploit.Agent-15726) strongly suggests exploitation. The deobfuscated JavaScript stream, named 'acroform_b64_00.js', likely contains code to download and execute a secondary payload, a common technique for initial access. The presence of two JavaScript artifacts further supports this. Confidence is high due to the critical detection and clear JavaScript exploitation indicators.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-15726 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-15726
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `cdeb3d6109e6ff0961c86b525cbd73517d59fee3afc51f623a3e117431d7e593`	pdf-javascript-stream	PDF /JS object 13 at offset 0x368	6385 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`acroform_b64_00.js` `62b4d20179676b3f711213a78b1d97fcb66f22f77c6b35db077a89e7c72dde61`	deobfuscated-js	PDF AcroForm base64 (decompressed) at offset 0x99D	3635 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.