PDF malware analysis — malicious · baa4e68feb11bfb1

MALICIOUS

PDF

13.4 KB

MD5: f0e344c65645291202de83b57326e75e SHA-1: 2d11cc03ce6ba55b05a9323077acbefe1bb0a0ad SHA-256: baa4e68feb11bfb18d6d1d06e2da807a0a43f8bf6899d1ad63a86ef48f29ecbd

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that exploits the CVE-2007-5659 vulnerability, specifically targeting the Collab.collectEmailInfo function. The heuristics indicate that this JavaScript is used to launch further stages, likely downloading and executing additional malicious content. The ClamAV detection name 'Pdf.Exploit.Agent-36064' further supports its malicious nature as an exploit-based PDF.

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` `e33f1487406cb01e0ed67893cc4e1937c9ee6bf33ee49f26ace723a10ebefaef`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F2	12588 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `ae8c20ef5070099b0662c90ce69300862d373987a9fd7dfa8ff5f1e5fa4769e6`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F2	5170 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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