PDF malware analysis — malicious · 1d75ae5030211c3b

MALICIOUS

PDF

68.2 KB

MD5: a0ff265d4b76a1ec3d3bb1f9c42b380b SHA-1: 94f7a2f7ebc9832fd1015c1de4d864db955e62c0 SHA-256: 1d75ae5030211c3b3d92493422cbebe6ea91be548813207f258f6bb18638a8cc

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF document contains embedded executable script content, flagged by multiple high-severity heuristics including PDF_XFA_SCRIPT and PDF_EMBEDDED_SCRIPT_PAYLOAD. The script utilizes an unescape() call, indicating obfuscation and a likely attempt to download and execute a secondary payload. An embedded file, 'embedded_file_obj0008.bin', was also extracted, further suggesting a multi-stage attack. The ML classifier strongly indicates maliciousness.

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.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `76f11dda59c2ee4b3e3aa0dfe81aad9f4271d89208c7ece8bc445d2d5d25477a`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	69070 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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