PDF malware analysis — malicious · ee974be3f458f2f3

MALICIOUS

PDF

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

MD5: 460c7273dfa8d7169c878cd9dfb048d1 SHA-1: 6b977dfb3199a2bfd3a7e754e8dabd1fd21797c9 SHA-256: ee974be3f458f2f378bba95ddaab38c44d19a1a92f636654c3a2ed24682b2d24

196 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1071.001 Web Protocols

The PDF file contains embedded JavaScript triggered by the OpenAction, which is a common method for exploiting PDF reader vulnerabilities. The critical CVE-2007-5659 heuristic firing indicates the use of the Collab.collectEmailInfo method, a known exploit vector. The embedded JavaScript stream, identified as suspicious, likely downloads and executes a second-stage payload, contributing to the malicious verdict.

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. (matched in decompressed stream)
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` `30d86508950de5e48cfc66cf365c3b7affb4130d0fea0586fe6891889757d052`	pdf-javascript-stream	PDF /JS object 13 at offset 0x368	2696 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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