PDF malware analysis — malicious · a360fbf2371a1c4a

MALICIOUS

PDF

12.9 KB

MD5: eee0ba13edd43a89b0ab6b55f1bf6532 SHA-1: c6cb4a2f5534b6f61cb9a70178fd9e81fcedddef SHA-256: a360fbf2371a1c4a05c0a096768ea63e3bcc3a1693411d2d57f66b1dfeef9a51

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that leverages the CVE-2007-5659 vulnerability, specifically using the Collab.collectEmailInfo method. This JavaScript is likely designed to download and execute a secondary payload, as indicated by the extraction of deobfuscated JavaScript files. 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-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` `4c5849c5eec10df5e24de8e45bf81132150453dac1ea0df74277e9d8eee1d9a0`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F2	12008 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `16bf952c4c08b8e872c48adaa33abe5fbcc0a885e9ab07f631136b6ef96af9dd`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F2	4965 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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