PDF malware analysis — malicious · 7f60df9535af6bb4

MALICIOUS

PDF

12.2 KB

MD5: f10bdcdb98286fff5ed60f18458b5a05 SHA-1: b13b6752bd738e7acc06d8309c004a27e6f6fded SHA-256: 7f60df9535af6bb44c5806391f7a54b4b9c5ae62aa34b3a3dd5d873fe4d5787d

140 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript that leverages the CVE-2007-5659 vulnerability, specifically using the Collab.collectEmailInfo method. This indicates an attempt to exploit a known PDF reader flaw. The presence of deobfuscated JavaScript files suggests the execution of malicious code, likely for downloading and executing 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` `029679a97ca71026f9fe9cfa53461b38c1182335ffebba8cfefdef162bb2c6fd`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11912 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `0c0667809bc4832e1afa5ec2038bde115b888ba40135f32c81d7796a29ca4dae`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4902 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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