PDF malware analysis — malicious · bc40931eb7f3f32d

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: e7223d22fe6cd7bd49e580e2fe381f65 SHA-1: 74aee1603afd3c2c440971e240561a8240b731ff SHA-256: bc40931eb7f3f32dfa1c83fa73806237d91df6d4589536cda71adac392aade00

220 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF file contains embedded JavaScript triggered by the OpenAction feature, a common technique for exploiting PDF reader vulnerabilities. The critical heuristic firing for CVE-2007-5659 (Collab.collectEmailInfo) strongly indicates exploitation of this specific vulnerability. The embedded JavaScript, identified as javascript_obj0013_001.js, is likely responsible for downloading and executing a secondary payload, as suggested by the 'Suspicious extracted artifact' heuristic. The file's origin from Scribus 1.3.3.12 is noted but does not directly influence the attack pattern assessment.

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-34662 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-34662
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` `b848f409483c3e751c5aa91784a952ca52692b9c1f3a008d2e667feb26c889a8`	pdf-javascript-stream	PDF /JS object 13 at offset 0x36E	3237 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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