PDF malware analysis — malicious · 2c5d3cadf433a1a7

MALICIOUS

PDF

9.5 KB

MD5: c25216340f68fa8eb557874159cfd476 SHA-1: eddf9f376920cf5b9e71f4e3e5b0f899c5b08636 SHA-256: 2c5d3cadf433a1a7a4d8ee3abdf814b0bfd61a6ead4248d36a59e260be65e399

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The file is a PDF containing embedded JavaScript, which is used to exploit CVE-2007-5659 via the Collab.collectEmailInfo method. This exploit is designed to execute arbitrary code. The presence of multiple deobfuscated JavaScript files and the ClamAV detection (Pdf.Exploit.Agent-35905) strongly indicate malicious intent, likely for downloading and executing a secondary payload.

Heuristics 6

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-35905 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35905
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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` `d8a6b4ad1abf04d0c4a4f89535cfb57f7312edef25c443f4e844c8ec9d0929dd`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19B	352 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `15de0653955e090ef9112599eca606a70fbdece062aa1241dee19055746c53df`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2FE	12065 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `80f4fb17acb5ba4300d437b748703f849dbdf03e01be870e9a19e7c022944662`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2FE	5102 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.