PDF malware analysis — malicious · ebe1af092a6bc5c9

MALICIOUS

PDF

12.5 KB

MD5: b39bd7a07b8f8bf581103847eca100c6 SHA-1: de93ec5fc809ab000b93c7fee39433aea0f808e7 SHA-256: ebe1af092a6bc5c9b507098d811afe2390a484777ce167116fe1b71b26a012fe

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.001 Malicious Link T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, identified as malicious by ClamAV with the signature Pdf.Exploit.Agent-36062. Heuristics indicate the exploitation of CVE-2007-5659 via JavaScript, which is used to launch further stages. The presence of deobfuscated JavaScript files suggests a downloader or exploit loader.

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` `3685815cc6773fd4b688795847e4e7bdd8f9e5f63c130b34a884f508c0aaab82`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12220 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `d61d654c2e59235a258579d4622b6e76852acd353c5fe996f4a222f3d2f142b0`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5007 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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