Malicious PDF — malware analysis report

Static analysis result for SHA-256 707fcfaa22545f53…

MALICIOUS

PDF

44.2 KB
MD5: 977ed2506e9bab3028863e3e72bd1c33 SHA-1: dff5588b184dc44b1d66847230a8a024160cd034 SHA-256: 707fcfaa22545f5347b5fdb92f5f201b2fbc399565899f8cb43a80f80b0f276a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an XFA form with embedded JavaScript, flagged by high-severity heuristics. This script is likely designed to download and execute a secondary payload, a common technique for initial compromise. While specific URLs were not directly executable, the presence of embedded files and scripts indicates a malicious intent to exploit the PDF viewer.

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
  • Embedded script payload in PDF stream low 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 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://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.

FilenameKindSourceSize
embedded_file_obj0008.bin
0a2224c4023b216235b61c3fc4dd17bbfac1ab23a545687f51b97604cf654712		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xE2 46 bytes
embedded_file_obj0009.bin
fa3cba588a6e46dc4d735efb8ff39017be2ec2757e08e93f6f7b3d81337baa38		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x15A 661 bytes
embedded_file_obj0010.bin
871021fb6e160d82e045356434462082cf2f29dc7a9ed1c2f3b572b846105e80		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x43A 152 bytes
embedded_file_obj0011.bin
46502fa20fdb45ff84592770ca36e2313c26cc8ef6dc119e103b12d6fd90fe01		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x51D 389 bytes
embedded_file_obj0012.bin
e91adafe4323fbdd4002682aad948eaa165718622cea8d515bb0788d4b95260c		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x6ED 162 bytes
embedded_file_obj0014.bin
cf920347cbff89415d9fc43a70a9c3edf2628546db3e74deba919d1a2679b8e3		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x7DA 42413 bytes
embedded_file_obj0015.bin
03172373f36e220deaea3baf69186e2a8bef99633879227f39b2a0b4510201ee		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xADD1 138 bytes

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