PDF malware analysis — malicious · e0df7b4c8683d1ee

MALICIOUS

PDF

2.8 KB Created: 2009-10-03 21:03:21 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 64b9f9db70b7060274e0da73c6b2a2a0 SHA-1: 66dd0db415617ab8c4cb4bf82aba913b8457090c SHA-256: e0df7b4c8683d1eef625dbcfb0f73dda948016dc658c91e7762f0b751526bffc

256 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF file contains embedded JavaScript and triggers an OpenAction, indicating an attempt to automatically execute code upon opening. The critical CVE-2007-5659 heuristic firing confirms the exploitation of a known PDF 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 is detected by ClamAV as 'Pdf.Dropper.Agent-7314592-0'.

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-7314592-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7314592-0
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` `791b14013873318abb6d2f3c5714ad3a910afe511939999641974e370867bdc5`	pdf-javascript-stream	PDF /JS object 13 at offset 0x366	2880 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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