PDF malware analysis — malicious · 34aba7d078e78d61

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: 4759a4593e863124427c8ed7129c018f SHA-1: 82938c33617e6aa4caa4c853d7c082c19f38e1dc SHA-256: 34aba7d078e78d61cce61c43100e495ef603b2ab46529311d7f4c2af5fb169ab

196 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious JavaScript

The PDF file contains embedded JavaScript and is configured with an OpenAction to trigger its execution upon opening. The critical CVE-2007-5659 heuristic firing indicates the use of the Collab.collectEmailInfo method, a known vector for exploiting vulnerabilities in older PDF readers. The embedded JavaScript, identified as 'javascript_obj0013_001.js', is likely responsible for downloading and executing a secondary payload, contributing to the overall malicious intent of the document.

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. (matched in decompressed stream)
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)
Suspicious extracted artifact high 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `a4b91265635df3bb47a463b09ba7b85940eb3c737a0ad2d06fa3acfd9f036df2`	pdf-javascript-stream	PDF /JS object 13 at offset 0x363	2754 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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