Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2105e3f03bca692…

MALICIOUS

PDF

9.8 KB
MD5: a1f4be14c150fe298137148b0834c17d SHA-1: 92a7966668e67154b3aec9385579d50df0d23a51 SHA-256: e2105e3f03bca692a76e7131ea99b3e29b18fe2b8826b885162f4efae9e25ddb
94 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

This PDF document contains a high-severity heuristic firing for XFA form script, indicating it contains executable script content. The ML classifier also flagged it as highly malicious. The presence of embedded files and a URL suggests the document is designed to lure the user into executing a script that likely downloads and executes a second-stage payload. The specific script content was too obfuscated to fully deconstruct, leading to a slightly reduced confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
  • 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://www.xfa.org/schema/xfa-locale-set/2.1/

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0041.bin
c06dcd026a7ea0536b63e07ce688691b585339a3ab7ff59065e546b56308c7bb		 pdf-embedded-file PDF EmbeddedFile object 41 at offset 0xEBB 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0xF6D 1029 bytes
embedded_file_obj99999.bin
d803c41506e24f1912f9de45f6b19851b402d9947d7f92920e85228034ad7bc3		 pdf-embedded-file PDF EmbeddedFile object 99999 at offset 0x1189 25805 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x21C1 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x226E 77 bytes

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