PDF malware analysis — malicious · de7f48dba1c68618

MALICIOUS

PDF

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

MD5: 713d345f01231031912343c6de8c4753 SHA-1: bb8639ee5dc2232545123c1fcccd666a2ec1f1c7 SHA-256: de7f48dba1c68618550bf8438dc491aff7696e39c05efda5e2549a601f787e26

136 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical ClamAV detection and high PDF_XFA_SCRIPT heuristic indicate that this PDF file contains and executes a malicious script. The embedded script payload is likely responsible for downloading and executing a second-stage payload, as suggested by the PDF_EMBEDDED heuristic. The file is identified as Pdf.Exploit.Dropped-81 by ClamAV, pointing to a known exploit delivery mechanism.

Heuristics 5

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

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 0x207	84 bytes
`embedded_file_obj0009.bin` `24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x2B8	228 bytes
`embedded_file_obj0010.bin` `065d3f01036481a32dc8080937695c10f6026296941009ea24949fbc65902b5b`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x3AB	1357 bytes
`embedded_file_obj0011.bin` `c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x6E3	199 bytes
`embedded_file_obj0012.bin` `986d84eb0bd55ccc77d79b20bfb773f3931faa0bd10e385f76fd51c45dfd91d9`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x7D5	34360 bytes
`embedded_file_obj0013.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 13 at offset 0x428D	77 bytes
`embedded_file_obj0014.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x4334	56 bytes

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