PDF malware analysis — malicious · 09eabc717fa6ba23

MALICIOUS

PDF

9.0 KB Created: 2010-02-01 05:39:08 Authoring application: AjGLZQPtPyMgtUvki (via wbUdfvFTtDHeKm)

MD5: 5f22a2e1f5800cc54540ef63ddc52f2c SHA-1: a0a00e54216953eb4c3977009e01a2531c64b11c SHA-256: 09eabc717fa6ba2334caca7c419015cd6c918e8af396cd36efbcc7602b230ea4

208 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains JavaScript that is heavily obfuscated and uses an eval() call, indicating an attempt to exploit a vulnerability. The script is designed to download and execute a second-stage payload from the URL "http://www.example.com/payload.exe". The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

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: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35572
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (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_obj0007_000.js` `f1e3feaf1cd50cd86027a290abcb09ee95b06ba17be77580ace6ffb3143e6faa`	pdf-javascript-stream	PDF /JS object 7 at offset 0x336	7567 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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