PDF malware analysis — malicious · e66f24e25591e790

MALICIOUS

PDF

2.7 KB Created: 2008-08-06 01:42:27 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 2886a282f7e71760327cf6bc7620272b SHA-1: b0b21493455b063172c1a9aab6a9ba9973d3e3f3 SHA-256: e66f24e25591e790f47ef74031c332eb68c97b0868b9fd0eaea7ecd017200aa1

220 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript triggered by an OpenAction, a common technique for exploiting PDF reader vulnerabilities. The 'CVE_2007_5659' heuristic specifically indicates exploitation of a known vulnerability (Collab.collectEmailInfo). The embedded JavaScript stream, though not fully detailed, is flagged as suspicious and obfuscated. This suggests the script's purpose is to download and execute a secondary payload, aligning with the 'Win.Trojan.Agent-34667' ClamAV detection.

Heuristics 7

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. (matched in decompressed stream)
ClamAV: Win.Trojan.Agent-34667 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-34667
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `b5d3514cef27e159852ae686f926198544ed933f1c0722a56262748526a3c043`	pdf-javascript-stream	PDF /JS object 13 at offset 0x366	2637 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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