PDF malware analysis — malicious · f02718de217363aa

MALICIOUS

PDF

10.2 KB Created: 2009-04-23 03:31:20 Authoring application: dGOuDamLOGhTgAa (via YIBfuzJJLClFhppb)

MD5: bc17efdfdd98ecfe3d49300a9a31e91d SHA-1: f4fa748fe3a3b93c33d8f529049b41326e7c8b31 SHA-256: f02718de217363aa0b647c0d7f5f307aa950f242824576f778b7e6b1c529f8cb

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically detecting 'Pdf.Exploit.Agent-35572'. Embedded JavaScript, obfuscated using String.fromCharCode, is present and likely responsible for executing the exploit. The presence of JavaScript actions and streams indicates an attempt to download and execute a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35572
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.
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.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `f8bd64637cfe37e4595558ef7b7af6469f0ab9cd15f3f5a13a5ca29012676a8b`	pdf-javascript-stream	PDF /JS object 7 at offset 0x570	8270 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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