PDF malware analysis — malicious · 25201982297c3c71

MALICIOUS

PDF

17.7 KB Created: 2010-08-29 16:19:36 Authoring application: styeZek colSnap

MD5: 3449e3aa0f14bcfea7462511d3adad3d SHA-1: c1f1cdc0c6b697cb9db5c5be5c65302349538d1d SHA-256: 25201982297c3c71dd622c75db9028bc3899d5f23decb9cbe772e3df6956890b

166 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

This PDF file was flagged by ClamAV as Pdf.Exploit.Dropped-81, indicating it likely exploits a known vulnerability to drop a malicious payload. The presence of embedded scripts and embedded files further supports this, suggesting the document's primary purpose is to execute or facilitate the execution of malicious code. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 6

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
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
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/

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 0x1E9	84 bytes
`embedded_file_obj0009.bin` `24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x298	228 bytes
`embedded_file_obj0010.bin` `757c33f343be511014c97c577ee1ab6920c31b30cb6f237b42390ab5c2e9831d`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x38B	1290 bytes
`embedded_file_obj0011.bin` `c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x6A6	199 bytes
`embedded_file_obj0012.bin` `8dc627cf5b25f2b52b113101037a757d853932364b2bd681a795694c3493656b`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x798	34139 bytes
`embedded_file_obj0013.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 13 at offset 0x4232	77 bytes
`embedded_file_obj0014.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x42D9	56 bytes

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