PDF malware analysis — malicious · b10dbdab5f355a8f

MALICIOUS

PDF

2.8 KB Created: 2008-11-06 05:25:45 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 30d6c6a243de3379c6f3d784986a563e SHA-1: 3452c05a8eda606dd25c52c81baa496d10558acb SHA-256: b10dbdab5f355a8f35c76b172ca6c50d3a291c53121ff4c92d6663877f1106b3

160 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious JavaScript

The PDF file contains embedded JavaScript triggered by the OpenAction, which is a common technique for exploiting vulnerabilities. The critical heuristic firing for CVE-2007-5659 (Collab.collectEmailInfo) indicates exploitation of this specific vulnerability. The embedded JavaScript stream, identified as 'javascript_obj0013_001.js', is likely responsible for downloading and executing a secondary payload, although its exact functionality is obfuscated. The file's metadata indicates it was authored using Scribus.

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)
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` `f4e20bd7d92fc08c5cfc3be2983500fed08f5f637fd49d6caf3880c9340ae11e`	pdf-javascript-stream	PDF /JS object 13 at offset 0x367	2867 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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