PDF malware analysis — malicious · aeb007b57b22f064

MALICIOUS

PDF

12.2 KB

MD5: fb29fb8d545d29391366c3dfbefa114d SHA-1: 6c18c64fc30e642cd4d0c8ce5b76c866085c533a SHA-256: aeb007b57b22f064ceff55e2dfc21f37c66a6e481232482f2287fb82935f7285

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, flagged by multiple heuristics as malicious. Specifically, the CVE-2007-5659 rule indicates the use of the Collab.collectEmailInfo method to execute JavaScript, a common technique for exploiting PDF vulnerabilities. The presence of deobfuscated JavaScript files suggests the script is designed to download and execute further stages. The ClamAV detection further supports its malicious nature.

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` `9fd8e5bd31fa3ea500364be3df44ba2b74376ea995516cbe251ba5602662708b`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12077 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `a175c55df4d96b51980b7f63b5f3c79bcf9fd5a6121cf015c1abfe2119a9555a`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4958 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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