Malicious PDF — malware analysis report

Static analysis result for SHA-256 09d11baedb5a409b…

MALICIOUS

PDF

591.5 KB Created: 2010-03-31 12:55:11 -04:00 Authoring application: Adobe InDesign CS4 (6.0.4) (via Adobe PDF Library 9.0)
MD5: cf175adb99adff883117e1f54d715aef SHA-1: 89743b273b13c04ceb94aedafd46a4b7ae2cd3ed SHA-256: 09d11baedb5a409b6d056c5638a634827bbb6e268339361093b366fae3a00cbd
102 Risk Score

Malware Insights

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

The PDF file exhibits suspicious characteristics, including embedded files and remote GoTo actions, which are often used to deliver secondary payloads or redirect users to malicious sites. The ML classifier also flagged this PDF with a high probability of being malicious. While no specific script was directly executed, the presence of embedded PDFs and remote actions strongly suggests an attack pattern aimed at further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8662

Heuristics 4

  • Embedded PDF child has suspicious static findings critical PDF_EMBEDDED_CHILD_STATIC_TRIAGE
    PDF contains an embedded PDF stream whose extracted child matches suspicious or malicious PDF heuristics. Wrapper PDFs are commonly used to hide the actual exploit or lure payload from scanners that do not recursively inspect attachments.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • Remote GoTo action info PDF_GOTO_REMOTE
    PDF has GoToR/GoToE actions that reference sibling document files — typical of multi-part document bundles
  • 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://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/g/img/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://ns.adobe.com/xap/1.0/sType/ManifestItem#
    • http://ns.adobe.com/xmp/InDesign/private
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/t/pg/
    • http://ns.adobe.com/xap/1.0/sType/Dimensions#
    • http://ns.adobe.com/xap/1.0/g/

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
cartwheel_saturn_400.pdf
72ea5773b3386411af466eed9477089ab8673c6e288566b6c8f00523d59d3a18		 pdf-embedded-file PDF EmbeddedFile object 244 at offset 0x1A9F7 263281 bytes
cartwheel_saturn_400_1.pdf
b7fe9169adb9b3e08f3b8d20433bf47029945bf8ef6aebc998bd7b8238d353ff		 pdf-embedded-file PDF EmbeddedFile object 244 at offset 0x1A9F7 349760 bytes
cartwheel_saturn_400_2.pdf
b409f9f2d252e945c2e450900d9f8db873fa08930649b574acaef50615a574a3		 pdf-embedded-file PDF EmbeddedFile object 244 at offset 0x1A9F7 436292 bytes
objstm_0121_00.bin
14cfc43a3706c8188789080b85e4e6999beb862881e7a4a978b60aa0ce8f2375		 pdf-objstm-decoded PDF /ObjStm 121 0 obj (inflated) 1126 bytes
font_00_cff_off0000b46d.bin
38d7d0627d6ef08fdb595be75f8f12752f3381fa7a1441ca8f76a5e76dc6e7b9		 pdf-font-stream PDF embedded font (cff) at offset 0xB46D 609 bytes
font_01_cff_off0000ba3f.bin
5f3f348279f5218a0f3607c4a8e7c1b2190742072e04b58112191aa6b4235f52		 pdf-font-stream PDF embedded font (cff) at offset 0xBA3F 886 bytes
font_02_cff_off0000c1e7.bin
7e5cb310f6cb7822b8a316192e8347738bb3f1d76fe954bdbf17623d2e87f2fb		 pdf-font-stream PDF embedded font (cff) at offset 0xC1E7 3808 bytes
font_03_cff_off0000d457.bin
99bc093cddfa13f76f619bedeaf723ce24882a341f9686e35da3cad8dbab0a72		 pdf-font-stream PDF embedded font (cff) at offset 0xD457 3669 bytes

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