PDF malware analysis — malicious · 2fd0c51b2d04cefd

MALICIOUS

PDF

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

MD5: 4031db2af8fd3e5495855d25c8eb1ab2 SHA-1: 19d5170cec8cc82133fe82863607460a2658bd31 SHA-256: 2fd0c51b2d04cefda55708699dfc7c009ff7b72011a8280c484ea65895ee19af

136 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded scripts and is flagged as exploiting a vulnerability, indicated by the 'Pdf.Exploit.Dropped-81' ClamAV detection. The presence of embedded files and XFA forms suggests a mechanism for delivering and executing malicious content. The primary attack vector appears to be exploiting a PDF vulnerability to download and execute a secondary payload.

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` `9090c22a0614cab3a9f167e83d2f2bcafdcaa63c463325003f9b3af1a2a89031`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x38B	1269 bytes
`embedded_file_obj0011.bin` `c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x6A2	199 bytes
`embedded_file_obj0012.bin` `efce41a449270955c3affd96bfe7d00bc1e6649646e07d9243a79cf126fe6cf0`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x794	34322 bytes
`embedded_file_obj0013.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 13 at offset 0x4248	77 bytes
`embedded_file_obj0014.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x42EF	56 bytes

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