PDF malware analysis — malicious · 418a959465aa5c5b

MALICIOUS

PDF

14.8 KB Created: 2010-08-29 16:19:36 Authoring application: VohycEidylquw DipEurilamu

MD5: 1ad94ee5698437c7758eb9b826baebab SHA-1: 6134b70b999d3b0fb27f60cd8cd92003f0c21e38 SHA-256: 418a959465aa5c5bd7d5bdaf8684fc47b872bb5f0e6c813559abdc776c435314

208 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter T1059.001 Command and Scripting Interpreter: PowerShell T1071 Application Layer Protocol

The PDF file contains embedded scripts and is flagged by multiple high-severity heuristics, including PDF_EVAL and PDF_XFA_SCRIPT, indicating the presence of executable code. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded file object, obj0010.bin, is also flagged as a suspicious extracted artifact. The presence of XFA forms and embedded files points towards a delivery mechanism for a secondary payload, likely executed via JavaScript within the PDF.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 8

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.
ClamAV: Pdf.Exploit.Dropped-81 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-81
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
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xci/1.0/

Extracted artifacts 7

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `d81baa73e490e4cb879e13927cacd1dd1be37524a37eac51603e15117c578777`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0x19E	84 bytes
`embedded_file_obj0009.bin` `24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x237	228 bytes
`embedded_file_obj0010.bin` `a402cedd22284145ad79778084d848caa002a2f80e6eaa54579c9dcd4a903fd1`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x377	1795 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`embedded_file_obj0011.bin` `c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x741	199 bytes
`embedded_file_obj0012.bin` `f5b72a3c9d34893407e67f9a1003a0cc8c7973d5d5113303c852384ea72ff4b8`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x833	29545 bytes
`embedded_file_obj0013.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 13 at offset 0x3676	77 bytes
`embedded_file_obj0014.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x371D	56 bytes

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