PDF malware analysis — malicious · ee3422178d00d2e0

MALICIOUS

PDF

29.5 KB Created: 2010-08-29 16:19:36 Authoring application: PukamoxypixiwMynucx CoqeqeFivysyhetavaze

MD5: 44c3f944d1beaf74a4aa2efa5d09a916 SHA-1: 49fa50b42c386889536fcdd47e9386ef02000d37 SHA-256: ee3422178d00d2e061af87f282a5fcb229c9c22535adac96a6f0ef6692f6d712

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains multiple high and critical severity heuristic firings related to embedded scripts and XFA forms, indicating an exploit attempt. The ClamAV detection 'Pdf.Exploit.Dropped-81' strongly suggests this is a malicious dropper. The presence of embedded files and scripts points to a multi-stage attack where the PDF acts as a container for delivering a secondary payload. No specific family could be identified from the available evidence.

Heuristics 8

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
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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/
- http://www.xfa.org/schema/xci/1.0/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://ns.adobe.com/xtd/
- http://www.xfa.org/schema/xfa-data/1.0/
- http://ns.adobe.com/xfdf/
- http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 8

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `04462f810d6eacdacecc9d0a5f3f81bebc722af4415e04da19b520338f642b51`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0x1AB	67 bytes
`embedded_file_obj0009.bin` `6b2260d3c78649345d3f0b850b831d545d33bb7017ccdf438cdfe1e9db7f2db2`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x238	294 bytes
`embedded_file_obj0010.bin` `63d3baef176e9e1724eb70b1d3f382bd6dda3beaf3c6cb5729114134bd39852d`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x3A9	603 bytes
`embedded_file_obj0011.bin` `3d041a3154a307926cf1c8b7e4a175e29ca51480c8da42fbc6a3135d2330b6f1`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x64F	26649 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`embedded_file_obj0012.bin` `103d1e7983cf88bfacedddb4af33ffb5317d9c2c8b3e1bfd987b2c5d712bc985`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x6EB3	323 bytes
`embedded_file_obj0014.bin` `517aade2a0a91b8b2d6289904c185967720f3050ec73d0ea0babd1d77ddf5cfb`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x7040	184 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`embedded_file_obj0015.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 15 at offset 0x713E	77 bytes
`embedded_file_obj0016.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x71D2	56 bytes

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