Malicious PDF — malware analysis report

Static analysis result for SHA-256 293c5e0182e4a056…

MALICIOUS

PDF

143.0 KB Created: 2021-03-25 06:10:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58d615449dfc257c569b6abca407babf SHA-1: 58790b0778676eedb6dc69f93dff43c59dd7098b SHA-256: 293c5e0182e4a056b5808703892c5ee9ff80a241d73ae245f0692de4ca205c57
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains a large number of external links, suggesting it is part of a link farm designed to direct users to potentially harmful websites. The document body, though heavily obfuscated, appears to reference a trophy guide, which is a common lure for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/wix?keyword=star+wars+the+force+unleashed+2+trophy+guide
    • https://cdn-cms.f-static.net/uploads/4478703/normal_601d52064e107.pdf
    • https://jepibuko.weebly.com/uploads/1/3/0/7/130739686/f068459ad8fe.pdf
    • https://cdn-cms.f-static.net/uploads/4451954/normal_600b68792073b.pdf
    • https://cdn-cms.f-static.net/uploads/4467043/normal_604461abf2a77.pdf
    • http://kefudepoduwudi.sportsontheweb.net/12768500015.pdf
    • https://cdn-cms.f-static.net/uploads/4369309/normal_6055534388e89.pdf
    • https://doluxofaxomivu.weebly.com/uploads/1/3/4/7/134715621/gumikab.pdf
    • http://joriwolujuf.sportsontheweb.net/45090116243.pdf
    • https://cdn-cms.f-static.net/uploads/4454304/normal_602aec73d57aa.pdf
    • http://sufawevugut.mywebcommunity.org/vivedul.pdf
    • http://takipibimaxubov.sportsontheweb.net/bears_ears_national_monument_map.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://083189c9-8220-4687-a375-57be19a37228.filesusr.com/ugd/909b15_1d5fdc2e49304c34a8fa9c6c7276aa36.pdf?index=true
    • https://uploads.strikinglycdn.com/files/f086aa10-413c-4a4b-8099-74a8c6d8b2a5/lenisewaxumakabuxadepinek.pdf
    • https://uploads.strikinglycdn.com/files/ea9ca283-9a6f-442c-9add-53d89c3226e5/99072006662.pdf
    • https://d872ce2a-2baf-4032-ab86-ab75b2f66d52.filesusr.com/ugd/338562_8815bd3bd9774d629c9dbae780b3eb96.pdf?index=true
    • https://5fb42ee6-a9be-400a-98f2-f9d4b9f720c8.filesusr.com/ugd/1813b3_acdbaea027794d36aacbb39e50ca408c.pdf?index=true
    • https://uploads.strikinglycdn.com/files/4d258dae-a705-456a-9c5b-73d4c3b3d722/44503235780.pdf
    • https://uploads.strikinglycdn.com/files/b5d034ad-e1f7-47ee-a830-f9bbf63638b0/89393664726.pdf
    • https://17851959-1482-4b49-8222-7b7b0c628459.filesusr.com/ugd/3cb679_9d1bdc381d3140af8fb678917b1c6609.pdf?index=true
    • https://45ae50e1-98a8-4501-9ad6-fc0df438eb43.filesusr.com/ugd/b16523_1fae4106559244b3869a22ceeefcdd0b.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6a264a02-0e67-419c-8de3-833f6a23664b/farowovutagatiwijakor.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_off0001f4ac.bin
9785d785da8f52e7bf00bfa7c743bf09fb952aac7be01559625786efa518d7c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F4AC 5844 bytes
font_01_sfnt_off000208a9.bin
06daf96d20ce865be0d74332fc9e0d58763f9b61d880922ee75a0c05b2814377		 pdf-font-stream PDF embedded font (sfnt) at offset 0x208A9 11040 bytes

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