PDF malware analysis — malicious · 1aaab8cefaff2650

MALICIOUS

PDF

2.7 KB Created: 2009-10-05 20:03:09 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 62977237a478b14bf224d6b17fc5cf57 SHA-1: 263eac6d93ba50523444c4346b6fc93e6427fac3 SHA-256: 1aaab8cefaff265077fae87afbe02c79c33a75fd3fda39f01e2c80a1137c1025

256 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.002 Spearphishing Attachment

This PDF file contains embedded JavaScript and triggers an OpenAction, indicating it's designed to execute code upon opening. The critical CVE-2007-5659 heuristic firing suggests exploitation of a known PDF vulnerability. The embedded JavaScript, identified as suspicious by static triage, likely downloads and executes a second-stage payload, as is common for dropper malware.

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.Dropper.Agent-1828650 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-1828650
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` `130b44c723811b1636b4610781f90b34a4de67e8c7a2138e7260b6a5cf7097ff`	pdf-javascript-stream	PDF /JS object 13 at offset 0x363	2758 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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