PDF malware analysis — malicious · 9022e6814735786a

MALICIOUS

PDF

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

MD5: 5efa3bea434a49cb358542e1af52b445 SHA-1: ba7a9316892307d23f8ed790a51789af40440bdc SHA-256: 9022e6814735786aec3a8125ed26f31bc1de1bac4ca6dc0437502ed8dd1d89a1

256 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 its execution upon opening. The 'CVE_2007_5659' heuristic firing indicates the use of the Collab.collectEmailInfo method, a known vector for exploiting vulnerabilities in older PDF readers. The embedded JavaScript stream, identified as 'javascript_obj0013_001.js', likely contains obfuscated code designed to download and execute a secondary payload, as suggested by the 'EXTRACTED_FILE_STATIC_TRIAGE' heuristic.

Heuristics 7

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)
ClamAV: Pdf.Exploit.Agent-3570 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-3570
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)
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_obj0013_001.js` `5d6902a5c930d697e31fdee1dbec7f9f5e176f76c94c40cebbe378e99ddc3b98`	pdf-javascript-stream	PDF /JS object 13 at offset 0x36F	3367 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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