Malicious PDF — malware analysis report

Static analysis result for SHA-256 82149e6fc52fe437…

MALICIOUS

PDF

69.3 KB Created: 2020-11-09 21:46:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abb1c2551fad696f4ea44355c35440e6 SHA-1: 1fc9620ad3273a0638cffa518fe5114a42698342 SHA-256: 82149e6fc52fe437214d493c9d8e300803de7737f731fcd5078339e10e37bf97
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'traffking.ru' which is likely part of the phishing lure, attempting to trick users into believing they can download PS3 games. No scripts were extracted, but the presence of the malicious URI and the strong heuristic detections indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://traffking.ru/123?keyword=download+ps3+games
    • https://cdn-cms.f-static.net/uploads/4454161/normal_5fa5f4639f8d1.pdf
    • https://cdn-cms.f-static.net/uploads/4390995/normal_5f9615a59da3e.pdf
    • https://cdn-cms.f-static.net/uploads/4482402/normal_5fa71a3065768.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/daniwodug/the_hangover_2_online_free_123_movies.pdf
    • https://s3.amazonaws.com/nuxepiduded/rikomaniwanumapefapab.pdf
    • https://s3.amazonaws.com/fuwenoxuzasila/sivedejidixog.pdf
    • https://uploads.strikinglycdn.com/files/ab647bec-e93a-4aa5-9941-be2e8585a312/xafoke.pdf
    • https://s3.amazonaws.com/kosipefojaw/gamizuzidugizaf.pdf
    • https://s3.amazonaws.com/rodigapigeta/21084283719.pdf
    • https://s3.amazonaws.com/xesigeze/trumbauersville_fire_department_phone_number.pdf
    • https://uploads.strikinglycdn.com/files/bf9ab9d3-8907-4443-9afb-d7ec006f8dcf/nudewezixa.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d098.bin
5c12a969bd01a4adee714ced94b46d018c9d2e26b2c813d956686fa51d882c03		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD098 5436 bytes
font_01_sfnt_off0000e326.bin
4f9844f6b94b657e223d397458fa7f20ac3ccd839af36ee36a59388bd94e1645		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE326 10768 bytes

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