PDF malware analysis — malicious · 2e6a632eed0e345c

MALICIOUS

PDF

9.5 KB

MD5: dedc98ad1333c968e4f08c29e109df60 SHA-1: 201e865aaaf5e790161afacd7c014b84cb2e3bbc SHA-256: 2e6a632eed0e345cbfcc5b5751e838399ffd7d43669c53477897d9346924129e

156 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 Scripting: JavaScript T1204.002 Malicious File: Malicious JavaScript

The PDF file contains high-severity heuristics indicating the presence of risky executable scripts within an XFA form. An embedded JavaScript file was extracted and deobfuscated, which likely contains the malicious payload. The ML classifier strongly indicates maliciousness. The deobfuscated JavaScript is the primary IOC, and its execution is the likely attack vector.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 7

XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0041.bin` `2a6812944ff85cbce812cc9aeb7522495e763b4ca54d36a41ec3d7601aec0e61`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x52	1162 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`deobfuscated.js` `1798da4be4ff215c2c17b93c3ea9e156c148904249cc7e86fdb47dac01a71c7b`	deobfuscated-js	PDF JavaScript deobfuscation pass	1624 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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