PDF malware analysis — malicious · 34ac31d13c4819ff

MALICIOUS

PDF

12.0 KB

MD5: ece00a870ff56a7012aeb76a5e8e8bd4 SHA-1: 3cd70d9f81e83e2a9323fa44f00d5e19a69c16ce SHA-256: 34ac31d13c4819ff21840088f8d8a94819cfe34770395bcd684db14e7709018f

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, identified by multiple heuristics including 'PDF_JAVASCRIPT' and 'PDF_JS'. The critical 'CVE_2007_5659' heuristic indicates the use of a known exploit targeting the 'Collab.collectEmailInfo' method within Adobe Reader. This exploit likely facilitates the execution of the embedded JavaScript, which in turn is designed to download and execute a secondary payload. The presence of deobfuscated JavaScript files further supports this analysis.

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-36065 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36065
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` `9c67560e8c63b720885d3efc1627b844b86a6ec08e99e5b65a22eae832045756`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19C	431 bytes
`legacy_pdfkit_stage_000.js` `1fea84579c400e2be03cd5c0b382628674ce7cd31a1350f719849cbd0778a4b4`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12266 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `af753b4dcb1eb8eee12453e4b30ac53b5c21352113241a3df602cfc7f3a523e8`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5069 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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