PDF malware analysis — malicious · 7b0785fe6ffbef3f

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: 480114b66354f09f217908b5192d2775 SHA-1: 6e0437683ab915fbe23c0558c4804d865b400bb1 SHA-256: 7b0785fe6ffbef3ff4de0751c9a8c921440234fa5f8e6095a9b0f03fa1b5bee2

196 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript triggered by an OpenAction, indicating an attempt to exploit a vulnerability. The critical CVE-2007-5659 heuristic firing confirms the use of a known exploit related to `Collab.collectEmailInfo`. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload. The file's structure and exploit usage suggest a malicious document designed to compromise the user's system.

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` `8e26fee263dea12b6e742be35859d68df3b8aac2e26db942b9ba83361a2eb1a7`	pdf-javascript-stream	PDF /JS object 13 at offset 0x365	2735 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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