PDF malware analysis — malicious · d70b23ca37c92b04

MALICIOUS

PDF

2.8 KB Created: 2009-10-03 19:03:18 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 3d1473a9e557d361fe8196ae9600a0a5 SHA-1: 786e102e78253044cee8066c5e156ce486203520 SHA-256: d70b23ca37c92b04b85abb81f1861f398587a48489d75159017aff95e94893fa

196 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript that is triggered upon opening, exploiting CVE-2007-5659 (Collab.collectEmailInfo). The JavaScript is obfuscated, but the presence of the exploit and the embedded script indicates a malicious intent to potentially gather user information or execute further malicious code. The file was authored with Scribus, which is not inherently suspicious, but the exploit is the primary indicator of compromise.

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` `8590b89e3553381fde0f6ded0483c22e54629c2bfe02026bc1afacc689d8de3c`	pdf-javascript-stream	PDF /JS object 13 at offset 0x365	2766 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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