PDF malware analysis — malicious · b66d2e3fc81fbaac

MALICIOUS

PDF

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

MD5: f57b39d4817423453766d05e6305ddbf SHA-1: 82143c8ec3b4d55fe40f8b551c96c30e89352f0b SHA-256: b66d2e3fc81fbaaca45d6a950a15c93f23145db9d08418860cf1ad752fb2d42a

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript and is configured with an OpenAction to trigger script execution upon opening. The critical CVE-2007-5659 heuristic firing indicates the use of the Collab.collectEmailInfo method, a known vector for exploiting vulnerabilities in older Adobe Reader versions. The embedded JavaScript stream, identified as 'javascript_obj0013_001.js', likely contains obfuscated code intended to download and execute a secondary payload.

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)
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` `c52fcab47273688697879a8137ba4a8b45e80696d38c53ee76ca8570af9c7b39`	pdf-javascript-stream	PDF /JS object 13 at offset 0x371	2492 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.