PDF malware analysis — malicious · 7717a5c0bd8b51dc

MALICIOUS

PDF

71.3 KB

MD5: 01f3a46cc373df280a6ba8aa7c71c7bd SHA-1: 5c053ec760733058a69e6e47ce42f7b430c0996a SHA-256: 7717a5c0bd8b51dce67c4094577ff2a2cdc1a2f77fcf6f15a0985e9479088f0c

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file exhibits multiple high-severity heuristic firings related to embedded scripts and XFA forms, strongly indicating malicious intent. The ML classifier also flagged it with very high confidence. The presence of embedded files, particularly 'embedded_file_obj0010.bin', suggests it's a dropper or exploit delivery mechanism. The script execution via XFA forms is a common technique for initial access and payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 7

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.
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 7

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` `5c22d8a763a73b763d2ab66d21a4f9cd8f141b27bb1e81aff272c9870dc6327b`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x162	677 bytes
`embedded_file_obj0010.bin` `ef64f4d8e0c7b26e80c8798a73f0e8bf2d667a79e1d5eb1af87ad7c37819148d`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x452	190 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`embedded_file_obj0011.bin` `f3b8a6f7508e2ea24fa3daad05b2082fe9355e6204cf867ff9b4d516e9d3f34b`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x55B	70226 bytes
`embedded_file_obj0012.bin` `6dfc2cfc739bf5cd5514e048143c782a1af7b4c86ed10bd88203471efa9b3fe7`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x117F8	389 bytes
`embedded_file_obj0014.bin` `9f69c42e66b0c1666412737dc9cf4aa42379ee793c4ad8d07130781756ea33d5`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x119CA	65 bytes
`embedded_file_obj0015.bin` `51d6d76eddb1746e412f89f4d1c1b0d620c60fb4a5641c018e93871be63968a9`	pdf-embedded-file	PDF EmbeddedFile object 15 at offset 0x11A55	147 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.