PDF malware analysis — malicious · 35092436cfa9e8ff

MALICIOUS

PDF

12.4 KB

MD5: fc656a06e593757abf82770e5a3b75c1 SHA-1: 543f76ae5532e60bba48c026c5cbc9bc506b5f7f SHA-256: 35092436cfa9e8ff96289a1b4062a3bd8c0960aa6335b283727d73cfed61c28d

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript that leverages the CVE-2007-5659 vulnerability through the `Collab.collectEmailInfo` method. This technique is commonly used to bypass PDF security measures and execute malicious code. The extracted JavaScript files suggest a multi-stage process, indicating the initial PDF likely acts as a loader for further malicious activity.

Heuristics 5

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-36062 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36062
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.
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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `068944f8c011a88ab770b45c6de142b9305a1f515d410204d5eadd9ac2b5bfb3`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19B	373 bytes
`legacy_pdfkit_stage_000.js` `d236df223af354e1b6d9a0d2352d10d268c94a11e1abaccee75fd58a611d47ad`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12077 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `4191d9744a4ded3525761add41d6c12dd0af252f38ea1c4b2bce3d2b95f9d7fe`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4978 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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