Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb8427949981644b…

MALICIOUS

PDF

14.1 KB Created: 2010-08-29 16:19:36 Authoring application: asdasd dsadsa
MD5: 6d361ed643342b8fa45688f9272b288a SHA-1: 77302659c68b0a9e56841952f2f3c854fda1e5d4 SHA-256: eb8427949981644b2492e186dbf5e849fece5dbb8b3b9b66b3f9f7a334c20df4
98 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The ClamAV detection 'Pdf.Exploit.Dropped-81' strongly indicates this PDF is designed to exploit a vulnerability. The presence of embedded files and a script payload further supports this, suggesting it's a dropper mechanism. The lack of readable document body text or script content prevents a more detailed analysis of the specific lure or payload execution.

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
d2a2ff5ba7824b582421dbb3b2530fb0f23b291018789384ea426de255263b5e
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0x3FC 1083 bytes
embedded_file_obj0009.bin
c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460
pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x6D9 199 bytes
embedded_file_obj0010.bin
fefda7107d0b92a297c4ce3cab7cf199eb088212cbbaa6f00e0bb2f209dcc1f4
pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x7F1 11107 bytes
embedded_file_obj0011.bin
e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876
pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x33A2 77 bytes
embedded_file_obj0012.bin
92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a
pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x343D 56 bytes