PDF malware analysis — malicious · 2d842d9811920941

MALICIOUS

PDF

14.6 KB Created: 2010-08-29 16:19:36 Authoring application: SocAzravydu Myhozxve

MD5: 0fe72bc51a27da4f57c34cc6817ff146 SHA-1: 6133b866575010d77919d18a33ef809c3d2b0d8c SHA-256: 2d842d98119209410dca50e7f7669982e8ed663f269bd562e6091a64f3f064fe

166 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File T1059.001 PowerShell

The PDF file exhibits multiple high-severity heuristic firings, including PDF_EMBEDDED_SCRIPT_PAYLOAD and PDF_XFA_SCRIPT, indicating the presence of executable script content within the document. ClamAV detection as 'Pdf.Exploit.Dropped-81' further confirms its malicious nature. The embedded script likely serves to download and execute a second-stage payload, a common technique for delivering malware.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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 0x19E	84 bytes
`embedded_file_obj0009.bin` `24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x24D	228 bytes
`embedded_file_obj0010.bin` `0f78b489dea5bf52cff108ac0c62de4722016d66dde74cd1e2acf3aeb5591ef3`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x340	1650 bytes
`embedded_file_obj0011.bin` `c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x6E3	199 bytes
`embedded_file_obj0012.bin` `a80e9addba126ad98412caf84026c23862051e474b343d393157ddbb07ab2997`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x7D5	29206 bytes
`embedded_file_obj0013.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 13 at offset 0x3591	77 bytes
`embedded_file_obj0014.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x3638	56 bytes

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