PDF malware analysis — malicious · 00675704604c9e58

MALICIOUS

PDF

3.5 KB

MD5: 071fd590af36550ca2906e80b8b27b3e SHA-1: 0f2845c25d05d9ee08370fbd856b99976a51e29b SHA-256: 00675704604c9e58ecda96395baa66cb596a04ff79acefc0dd562d0ad854c400

268 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious JavaScript

The PDF file contains embedded JavaScript that is heavily obfuscated. Heuristics indicate this JavaScript is designed to exploit CVE-2007-5659 (Collab.collectEmailInfo), a known vulnerability in older versions of Adobe Reader. The script's purpose is to download and execute a secondary payload, as suggested by the 'PDF_JS_EXPLOIT_CLUSTER' and 'ML_NYX_PDF_MALICIOUS' firings. The obfuscated nature of the script and the exploit attempt point towards a malicious downloader.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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)
PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTER

PDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
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` `c52b8f0bd0a7725b0ded237acad0cdfb986eb346ba614b35e245690f06bc547d`	pdf-javascript-stream	PDF /JS object 6 at offset 0x19D	4944 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.