Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ce45eaa8c42c74d…

MALICIOUS

PDF

42.6 KB
MD5: 1c5fc309d16da327bd1f085c05ade3c2 SHA-1: 47b1fb3b5b6523014a23f4b1dad0b1eb5ebcfe31 SHA-256: 1ce45eaa8c42c74d2fbc3d595f9c1a228dcbf5bddef0d5ad7ffc10caa75106d2
186 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The file is identified as malicious by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36834'. The PDF structure contains embedded files and scripts, indicating it is designed to exploit vulnerabilities and deliver a secondary payload. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36834 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36834
  • 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/
    • 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
04462f810d6eacdacecc9d0a5f3f81bebc722af4415e04da19b520338f642b51		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xD7 67 bytes
embedded_file_obj0009.bin
b9d8502d5aeea49cf68a98807b5289ae77d481289c0e7708b81d3822c93c12a3		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x162 688 bytes
embedded_file_obj0010.bin
1c5b7971dff586207e8235b49916e2677297f244f218ae7d19c6ac9623332af8		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x45D 100 bytes
embedded_file_obj0011.bin
cb1b1618d0656d687348776ddf1cbf22b741113b6702484db3274237c4fde294		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x50C 570 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x791 190 bytes
embedded_file_obj0014.bin
8efd7cf9223cd74b3783a386c5809841cf839d7106139f1498937885bddd923e		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x89C 40580 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36834
Obfuscation or payload: unlikely
embedded_file_obj0015.bin
03172373f36e220deaea3baf69186e2a8bef99633879227f39b2a0b4510201ee		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xA76A 138 bytes

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