PDF malware analysis — malicious · 8de47174f2f64a72

MALICIOUS

PDF

2.8 KB Created: 2009-10-03 20:03:18 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 30dd2ab238dff9feeff88e56a3c6c6be SHA-1: b6df00c92c7fdeb5f583209fb185d7c3ee6c2eeb SHA-256: 8de47174f2f64a72ac1e0bfe99e57c88a4091c46ae056dffda5dad75cab70afb

220 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 an OpenAction, indicating an attempt to exploit vulnerabilities. The presence of `unescape()` and `Collab.collectEmailInfo` (CVE-2007-5659) strongly suggests exploitation of known PDF reader flaws. The ClamAV detection `Pdf.Dropper.Agent-7685801-0` further confirms its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, a common dropper behavior.

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-7685801-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7685801-0
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)
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` `4dadbac1cd0ec73f8bcd7941a7c1f133e67208fa9e20e7c495df881cd8794b53`	pdf-javascript-stream	PDF /JS object 13 at offset 0x367	2793 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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