PDF malware analysis — malicious · ef47b8aefd443471

MALICIOUS

PDF

60.4 KB

MD5: 55544d343e5b9aa0954ca1ec1d3ebac4 SHA-1: 388223e84c8eddaf50512f11754c044f1833f42b SHA-256: ef47b8aefd443471a1d1849f3f01f6b4ca3f909840b8896010fd68e75319706a

78 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains embedded JavaScript, indicated by the PDF_EVAL and PDF_EMBEDDED_SCRIPT_PAYLOAD heuristics. This script is likely designed to download and execute a second-stage payload, as suggested by the suspicious embedded file artifact 'embedded_file_obj0010.bin'. The XFA form structure also points to a potentially complex, script-driven document.

Heuristics 6

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` `b5534b204c27903eb35e35dd652479a851c46409997ca74a81ff4196427920bd`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x55B	59497 bytes
`embedded_file_obj0012.bin` `6dfc2cfc739bf5cd5514e048143c782a1af7b4c86ed10bd88203471efa9b3fe7`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0xEE0F	389 bytes
`embedded_file_obj0014.bin` `9f69c42e66b0c1666412737dc9cf4aa42379ee793c4ad8d07130781756ea33d5`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0xEFE1	65 bytes
`embedded_file_obj0015.bin` `51d6d76eddb1746e412f89f4d1c1b0d620c60fb4a5641c018e93871be63968a9`	pdf-embedded-file	PDF EmbeddedFile object 15 at offset 0xF06C	147 bytes

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