PDF malware analysis — malicious · d32b0acba21ab43a

MALICIOUS

PDF

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

MD5: 569ceb6f66fe1fca88ddbf0e0def2370 SHA-1: 1516d07730f714dcc20f740e63848256d1db761b SHA-256: d32b0acba21ab43a0cbc8ef782d567a0f560d5180905674f75736f494efaa567

196 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link T1204.002 Malicious File

The PDF file contains embedded JavaScript and is configured with an OpenAction trigger, indicating an attempt to automatically execute code upon opening. The critical CVE-2007-5659 heuristic firing, related to Collab.collectEmailInfo, strongly suggests exploitation of this vulnerability. The presence of obfuscated JavaScript within an embedded artifact further supports the likelihood of malicious intent, likely to download and execute a secondary payload.

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.
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
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_obj0012_001.js` `385cdb63c5fe1e7ea31c7354ce7d26477dd95f7b47e195f5e1fb632e8f19f53b`	pdf-javascript-stream	PDF /JS object 12 at offset 0x36F	3280 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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