PDF malware analysis — malicious · c0422785d099865c

MALICIOUS

PDF

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

MD5: d6920a73db73417962cf56f0792ef49c SHA-1: 1c513781b85333d0cefad5425c8e2f10c227791c SHA-256: c0422785d099865ca1e5d93ec737bee68c60ee9fc8586e549255bf8c5d73d0cc

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, triggered by an OpenAction, and utilizes the unescape function. A critical heuristic identifies the CVE-2007-5659 vulnerability (Collab.collectEmailInfo), indicating exploitation of a known flaw in Adobe Reader. The embedded JavaScript, named 'javascript_obj0013_001.js', is likely responsible for downloading and executing a secondary payload, contributing to the malicious nature 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)
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` `93ac8d8ae82c3a75e0471a3fa820bb07df973d7567c1c9535dbdb36c4248e0e0`	pdf-javascript-stream	PDF /JS object 13 at offset 0x368	2007 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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