PDF malware analysis — malicious · 2b6404422ea44283

MALICIOUS

PDF

13.5 KB

MD5: 2ed579622cd5840684af049ecd076319 SHA-1: c3b53c98acf4335dcfdbedb691018ec29b2ed193 SHA-256: 2b6404422ea44283e24ca3e95145fe568f8aa6d8f7d399d39253bed9f53ce6f7

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript that exploits CVE-2007-5659 via the Collab.collectEmailInfo method. This JavaScript is further obfuscated and split into multiple files, indicating an attempt to evade detection. The primary function appears to be the execution of this script, which is a common technique for downloading and executing additional malicious content.

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-36064 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36064
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` `a5c8f0f722df4dd9876a0087e1eee65bd3020c5995f94f6729f7e17f3f3677a0`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19D	331 bytes
`legacy_pdfkit_stage_000.js` `5baec276e8485a4c85793f318a714e2bc8da4d869d8e5f41420f27b1d9c7a653`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F2	12547 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `b3471526c711e762ba9a525da89aae986bf9075662b0dc9cbec35ebf61fc6bbb`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F2	5249 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.