PDF malware analysis — malicious · fc9fae6e80fd8971

MALICIOUS

PDF

4.4 KB Created: e1svrt Authoring application: Adsfgddfobe (via sfgasdfgsd)

MD5: fa8a784cfd2f0eb7d778d14e588c413a SHA-1: 447abe542c6b22c69dc73e83ad05d02b5493e32a SHA-256: fc9fae6e80fd8971b54ce53f552d80d02dfd7edebe7d3cbe68e687b2dabb69bf

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript that exploits known vulnerabilities (CVE-2009-0927 and CVE-2007-5659). The JavaScript is obfuscated and uses eval() to execute, indicating an attempt to download and run a secondary payload. The presence of multiple JavaScript streams and a deobfuscated stage suggests a multi-stage attack. No specific family could be identified.

Heuristics 6

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (identified after JavaScript deobfuscation)
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)
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.
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_obj0015_000.js` `ed9cfc402fb4c45c5099b7f99605abed333bb475cf6cb3f2304d3f47c18291df`	pdf-javascript-stream	PDF /JS object 15 at offset 0x14F	275 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`javascript_obj0017_001.js` `21148ef5b086d126e0d668173425d4857248103dc1823e85f4ed80fed521c549`	pdf-javascript-stream	PDF /JS object 17 at offset 0xE90	174 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `6e6db4e06d6aaa75973997466380b29e4b254ff097106805d5c59e7c70a3eae1`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x29F	6414 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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