PDF malware analysis — malicious · 4be1d4282ddb22c2

MALICIOUS

PDF

553.3 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: ce75498ee25ec2fe055ed28222cc1939 SHA-1: 8b805a394b6bceacbac0f727601b19e70a2e415f SHA-256: 4be1d4282ddb22c248f59fb32fbae201e82be7f6135fc4f35d0d8423fb027b9a

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF exhibits suspicious characteristics, including embedded files and remote GoTo actions, strongly suggesting malicious intent. The ML classifier also flagged it with high confidence. While no scripts were extracted, the presence of embedded PDF files and the PDF_GOTO_REMOTE heuristic indicate a potential for exploiting vulnerabilities or redirecting users to malicious content. The embedded URLs, though mostly benign, are part of the document's structure.

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_sun_834.pdf` `af9ecec2f7f904aa114e38d1d6f44d2275c9cd2a70c4ca61b1b4af3cb9704a9b`	pdf-embedded-file	PDF EmbeddedFile object 244 at offset 0x1A9EE	224122 bytes
`cartwheel_sun_834_1.pdf` `48018d65253bd4bd33a289eff4fda94dffae06e54a01652c4ef3faba37de09eb`	pdf-embedded-file	PDF EmbeddedFile object 244 at offset 0x1A9EE	310609 bytes
`cartwheel_sun_834_2.pdf` `d16b0163cc9f34d564fe46a76e7f136c5242ba0f8ccf9306823192f911b7bd58`	pdf-embedded-file	PDF EmbeddedFile object 244 at offset 0x1A9EE	397067 bytes
`stream_019_off0001a020.bin` `3e32cddbe82e65a0097e64de0ab1d57a06c9ad982b2334ca32186e234e22d701`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1A020	483588 bytes
`objstm_0121_00.bin` `17bf634f0c42fd8db9fc045066b723b9c299f473f5b231daf3f4529cbd4a42ac`	pdf-objstm-decoded	PDF /ObjStm 121 0 obj (inflated)	1117 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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