PDF malware analysis — malicious · 3d0123cf2c101760

MALICIOUS

PDF

6.4 KB

MD5: 7f8635f1c7e1e94ea12565eb4b2ce5a4 SHA-1: ea7875aabbddeb53c130fd00c0cfcdaf111e5d44 SHA-256: 3d0123cf2c101760b067c9807556c6d183289507790b88dbc522adfe235531ea

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript and triggers a critical vulnerability (CVE-2007-5659) related to the Collab.collectEmailInfo function. This indicates the file is designed to exploit this known PDF flaw. The embedded JavaScript, identified as 'javascript_obj0006_000.js', is likely responsible for downloading and executing a secondary payload, although its specific actions are obfuscated. The presence of JavaScript actions and streams, along with the specific CVE exploit, strongly suggests a malicious intent.

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)
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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_obj0006_000.js` `ee305db7819f1080c412c2caaba82a95531682bbf70eff0e16754b0dc099891d`	pdf-javascript-stream	PDF /JS object 6 at offset 0x195	5302 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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