PDF malware analysis — malicious · e5c5312a27e70d40

MALICIOUS

PDF

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

MD5: 443eb314392cef6701bb54a9914c5286 SHA-1: f32bf1d378c21fcb643784b310e6e315e3157f4b SHA-256: e5c5312a27e70d400f485360cf0ae37efce5586ec64b8c3ba2b641f33b432a71

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded scripts and XFA forms, which are flagged as risky and executable. The 'PDF_EVAL' and 'PDF_XFA_SCRIPT' heuristics indicate that the document is designed to execute code. ClamAV detection 'Pdf.Exploit.Dropped-81' confirms its malicious nature, likely involving the execution of an embedded payload.

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 0xD7	67 bytes
`embedded_file_obj0009.bin` `38c81935ce11af5f7ac843faedee50e3f72f9fb62219a5761db7ba2d82e88742`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x162	65 bytes
`embedded_file_obj0010.bin` `0c731745dece541851895b880d045401950d97b1566366ff1ead9878db3c02f8`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x1EE	802 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`embedded_file_obj0011.bin` `b445137b065c4702000e69e653b98e1da92cb9d63f0a97c835708866291235d5`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x55B	26540 bytes
`embedded_file_obj0012.bin` `103d1e7983cf88bfacedddb4af33ffb5317d9c2c8b3e1bfd987b2c5d712bc985`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x6D52	323 bytes
`embedded_file_obj0014.bin` `f87eb6de05cca8bc3ae4439301ffeb174f2ccce13082198ed2509bd8b4519ed8`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x6EDF	164 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 0x6FC9	77 bytes
`embedded_file_obj0016.bin` `78b09463af5cd373870eae2e3e83de87b7f6b659e0d0117ab4c09d90ebb2ad95`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x705D	68 bytes

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