PDF malware analysis — malicious · 572bc914fee0d649

MALICIOUS

PDF

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

MD5: 806d8d8456704ed08e8ca3918939c0a4 SHA-1: 87ba920f3301528d5323738f3dba6368456415d9 SHA-256: 572bc914fee0d649fff9750f2d420feb6d48b81a7d6ca322c2aca91a048d2f01

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript and is configured with an OpenAction to trigger an exploit. The critical CVE-2007-5659 heuristic firing indicates the use of the Collab.collectEmailInfo method, a known vector for arbitrary code execution. The embedded JavaScript stream, named 'javascript_obj0012_001.js', likely contains obfuscated code intended to download and execute a second-stage payload, although its exact function is obscured. The document body contains fragments of JavaScript code, including string concatenation and array manipulation, further suggesting malicious scripting.

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
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_obj0012_001.js` `93e695a61dc3209ea6915f3c66d69fcbca13c93c2f8807c341a3c0eece7a15a7`	pdf-javascript-stream	PDF /JS object 12 at offset 0x32D	2084 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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