PDF malware analysis — malicious · 04b6a1ca7fe4b688

MALICIOUS

PDF

553.4 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: 33ae1efeacd405dc7487e3baf3691d2e SHA-1: 9193bedc1bf43c588e3f6fdef1198dc8542e70a6 SHA-256: 04b6a1ca7fe4b688539483b7a0a1c2b4d13e36cf2c1da12e4853812e50718319

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file exhibits suspicious behavior through embedded child PDFs and remote GoTo actions, indicating a potential exploit or redirection to malicious content. The ML classifier also flagged this document as malicious with a high probability. While no scripts were directly extracted, the embedded nature of the malicious components suggests an attack pattern involving exploitation of PDF vulnerabilities.

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 9

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`cartwheel_earth_350.pdf` `937a82aa417462f5baf465e37e691bdd31932cda82107d918880d27561cbde32`	pdf-embedded-file	PDF EmbeddedFile object 244 at offset 0x1A9F4	224179 bytes
`cartwheel_earth_350_1.pdf` `f1edb97abec78f1e7d1e0f6f9c040f3f4261ed5a12b4c5126178630482d22f5a`	pdf-embedded-file	PDF EmbeddedFile object 244 at offset 0x1A9F4	310693 bytes
`cartwheel_earth_350_2.pdf` `e533cf6c4697a96f7d5bceb57ff4a149e0ef75e029362fe2ba3340d4ce3a5b69`	pdf-embedded-file	PDF EmbeddedFile object 244 at offset 0x1A9F4	397151 bytes
`stream_019_off0001a022.bin` `e2c90c3a5a0be8c10ced20d4026bb736cf209332c6ecd57c1c7bba720e35aceb`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1A022	483689 bytes
`objstm_0121_00.bin` `a026c91134903365ae6bd7edccdc7096056853c3ede244356e226f4c8842ce2f`	pdf-objstm-decoded	PDF /ObjStm 121 0 obj (inflated)	1123 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

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