Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b6eacec645e647d…

MALICIOUS

PDF

42.6 KB
MD5: 23bd0e7bbc7cfec137e4478c5c1ef50b SHA-1: 525dcba30bb61f64d4c5dc34af15c6f514d20ba8 SHA-256: 7b6eacec645e647de1d78869f3a13741af43d386bdc53bd93a5d5af585e9d13a
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The PDF file was flagged by multiple heuristics, including critical detections from ClamAV (Pdf.Exploit.Agent-36830), indicating it contains an exploit. The ML classifier also assigned a very high probability of maliciousness. The embedded artifacts and the nature of the PDF suggest it's designed to exploit a vulnerability and deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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
  • 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/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
0a2224c4023b216235b61c3fc4dd17bbfac1ab23a545687f51b97604cf654712		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 46 bytes
embedded_file_obj0009.bin
059f1f264af1796bd057ca99c864a793583d92aa70d579ca4355fcf1202fe37b		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x13C 687 bytes
embedded_file_obj0010.bin
8259db878f85521b2ee9c7ec108d34b19d3b6c900af7d501b5135c2cd3dcfde6		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x436 168 bytes
embedded_file_obj0011.bin
c0ed5766e19b3e8638c0974cd1b04a004d3fa24b4091909b724772ea70257bcd		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x529 434 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x726 190 bytes
embedded_file_obj0014.bin
3562e7c1e22c0539bd4bd7d3ad87f4d043fed8df03c85f6a1baa751092742902		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x831 40798 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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