Malicious PDF — malware analysis report

Static analysis result for SHA-256 36da3ea4822840db…

MALICIOUS

PDF

14.0 KB Created: 2010-08-29 16:19:36 Authoring application: asdasd dsadsa
MD5: 836aa00de9a3b19cca4ff33aa2a6d404 SHA-1: 5f34e2cc3eae8a72c3f06691dc07d40ba7ae38e4 SHA-256: 36da3ea4822840db5983f76c327bac2deb0bf87ac36faa581d44ae2d9eecc507
98 Risk Score

Malware Insights

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

The critical ClamAV detection and the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic indicate this PDF contains malicious content. The embedded file objects suggest it is designed to drop and execute a secondary payload. The presence of multiple URLs, though mostly benign or unknown, are part of the PDF's structure and potential delivery mechanism.

Heuristics 6

  • ClamAV: Pdf.Exploit.Dropped-81 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-81
  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://ns.adobe.com/xtd/
    • 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_obj0006.bin
d81baa73e490e4cb879e13927cacd1dd1be37524a37eac51603e15117c578777		 pdf-embedded-file PDF EmbeddedFile object 6 at offset 0x21F 84 bytes
embedded_file_obj0007.bin
24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0		 pdf-embedded-file PDF EmbeddedFile object 7 at offset 0x2C1 228 bytes
embedded_file_obj0008.bin
158f249475f9dbcc0630d5d554fe363f2929e52c2300704809a3aca8fa9bd515		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0x3FD 1072 bytes
embedded_file_obj0009.bin
c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x6C7 199 bytes
embedded_file_obj0010.bin
d6686c57a7b191abdb58714f995ffc708dbaa6eb53faeba0e8d41bf7010f7581		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x7DF 10991 bytes
embedded_file_obj0011.bin
e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x331C 77 bytes
embedded_file_obj0012.bin
92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x33B7 56 bytes

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