PDF malware analysis — malicious · d0ce552ef83c2907

MALICIOUS

PDF

12.1 KB

MD5: 352e8331bb5b191ec17299178a8186a2 SHA-1: e13f9cf607fddd2ea6621b84d8a38035dd4c68d7 SHA-256: d0ce552ef83c2907d2ec0c765c1dbd059e98b850462dd95b93737486f8e1a66b

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059.001 PowerShell T1059.003 Windows Command and Shell T1059.007 JavaScript

The file is a PDF containing embedded JavaScript, which is flagged by multiple heuristics as malicious. Specifically, the CVE-2007-5659 exploit targeting `Collab.collectEmailInfo` is present, indicating an attempt to leverage a known vulnerability. The presence of deobfuscated JavaScript files suggests the execution of malicious code, likely for downloading and executing further stages of an attack.

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` `cbe8ab013d02a7e09e2e510e5eb5b9ff159232f0179c996de131302a1966b06f`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11719 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `78c78ed8ecaa7bf7d0477f261a59a535e8be0d55c9c81890305b81d25314d1a3`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4830 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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