PDF malware analysis — malicious · 52b6da7500d3f89e

MALICIOUS

PDF

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

MD5: 850afa09ddb76dcb33ad9ea5a2e6279d SHA-1: 39336285307ce4132763fa3e08fafcdcb8efff22 SHA-256: 52b6da7500d3f89e81f9259aef95e8a8fb2b35a0eb91ba6c73077971a4172c5c

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The PDF file contains embedded executable scripts, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD and PDF_XFA_SCRIPT heuristics. The ClamAV detection further confirms its malicious nature as Pdf.Exploit.Dropped-81. The embedded script likely downloads and executes a second-stage payload, contributing to the overall malicious intent of the document.

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 0x1E5	84 bytes
`embedded_file_obj0009.bin` `24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x294	228 bytes
`embedded_file_obj0010.bin` `3fae588f17b537229f410bc9d18b6d9f244864dd909f354d3f9e7e74c93de85a`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x387	1250 bytes
`embedded_file_obj0011.bin` `c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x68D	199 bytes
`embedded_file_obj0012.bin` `fb6fec8a64db98ee576bfaca972be3543c4dc84ceb920bfc63867ffb5ccbf9df`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x77F	29143 bytes
`embedded_file_obj0013.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 13 at offset 0x3526	77 bytes
`embedded_file_obj0014.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x35CD	56 bytes

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