PDF malware analysis — malicious · f50de166b6fd6c13

MALICIOUS

PDF

553.2 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: aef455284cace8d5cb221f7150d2a337 SHA-1: 6ba2ddd9947e161f4719b4c8d341067e0fc77ff5 SHA-256: f50de166b6fd6c134148663db2b237ea4d37983603bdf35a14791b6d3a6ccdaa

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded objects and a remote GoTo action, indicating an attempt to redirect the user or download additional content. The ML classifier flagged this PDF as malicious with a high probability. The embedded artifacts and heuristics suggest the PDF is designed to exploit vulnerabilities and deliver a secondary payload, likely through an embedded malicious PDF child. No scripts were extracted, limiting the ability to determine the exact execution flow.

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_venus_348.pdf` `dac17e0ca0cc0caa1048f32d7c1d859947c0cf671cd26175f77e69484b4bc003`	pdf-embedded-file	PDF EmbeddedFile object 244 at offset 0x1A9F4	223999 bytes
`cartwheel_venus_348_1.pdf` `2e246db4093e4d17c80df1d8002ab1da1a36e9553cf1cfac6450ec005b16d18f`	pdf-embedded-file	PDF EmbeddedFile object 244 at offset 0x1A9F4	310509 bytes
`cartwheel_venus_348_2.pdf` `c9eb6f879c8338cb4cd2cb8c2b383d8f9906983652a24e1df80903ae353185d3`	pdf-embedded-file	PDF EmbeddedFile object 244 at offset 0x1A9F4	396961 bytes
`stream_019_off0001a024.bin` `71a537be07db3034205e08497fe8a499a8ed1a64387e8ee4ccda26e9690d7118`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1A024	483492 bytes
`objstm_0121_00.bin` `28761ae88e546cf8c6857336fc848697e075a8cd0098e251becf3bc360589cba`	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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