PDF malware analysis — malicious · 7aef78a3ebe9290b

MALICIOUS

PDF

9.0 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: b3333e4c4007fef26da4a2d238a30fa8 SHA-1: 0aa2af169cc93d8e949abd61ed439a212444ef45 SHA-256: 7aef78a3ebe9290bffcc61231d613258fa3348698af7c36cb763b431a09a80de

278 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious File

This PDF document contains embedded JavaScript and is configured with an OpenAction to trigger its execution upon opening. Critical heuristics indicate exploitation of CVE-2009-4324 (media.newPlayer), CVE-2007-5659 (Collab.collectEmailInfo), and CVE-2008-2992 (util.printf). The embedded JavaScript, though obfuscated, appears to be involved in shellcode preparation and memory spraying, consistent with a payload delivery mechanism. The primary intent is to exploit these vulnerabilities to execute arbitrary code.

Heuristics 8

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009.
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.
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure.
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_obj0013_001.js` `92fd89151c33f9d01f75f081b24c4dea619669e9b4b3bfd7f438ffb426b538ed`	pdf-javascript-stream	PDF /JS object 13 at offset 0x390	7638 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 7 eval/decoder/string-building token(s).

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