Malicious PDF — malware analysis report

Static analysis result for SHA-256 13e206ffc3961b4a…

MALICIOUS

PDF

67.4 KB Created: 2021-04-09 17:20:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 5e82a0f52aa2e73d0b15735aee1cb038 SHA-1: 2770066d518c28d5c263b42e1c885e57232c3eab SHA-256: 13e206ffc3961b4ad3c644ef322e2f0f5d1ac027cbe5695a35e2b11e097ec3a7
124 Risk Score

Malware Insights

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

The PDF contains embedded URLs and is flagged by heuristics as a link farm on disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. The document body, though heavily obfuscated, contains text related to a 'Cabela's fly tying kit review', suggesting a lure to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8429

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://lozipotod.ru/strik?utm_term=cabela%2527s+fly+tying+kit+review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4371812/normal_6066f01c7fcb7.pdfIn PDF document text
    • http://dobuwiwitevotir.sportsontheweb.net/jiraludonamowu.pdfIn PDF document text
    • https://cdn.sqhk.co/turanexode/jajc0fW/fafelaninezesaxo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494147/normal_6002bf2bb5421.pdfIn PDF document text
    • https://cdn.sqhk.co/nifodotiriru/ighcHdE/starbeam_runner_adventure_park_west_bloomfield.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406514/normal_6037041c9fd02.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/idiahe5/52677022047.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501193/normal_60357ee279537.pdfIn PDF document text
    • https://cdn.sqhk.co/gukisafuw/4tZbiai/toon_blast_cheats_2019_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408476/normal_606b227057c89.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e114ad41-1367-46fe-a5fd-427bf640f69d.filesusr.com/ugd/a63c55_91ef901ecbe64d92a0e0ef97ad8b7c37.pdf?index=trueIn PDF document text
    • https://cd8fad78-6a19-43c6-878c-830d169ee42d.filesusr.com/ugd/ff0d91_124ed2607c8c462e8ec4acb66978a906.pdf?index=trueIn PDF document text
    • http://miganuvag.myartsonline.com/business_policy_and_strategic_management_case_study_with_solution.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/komovebesulifukub.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/rimololozisupipavoro.pdfIn PDF document text
    • https://949217f6-ecfc-4a1b-8806-967b2a145102.filesusr.com/ugd/b08fd2_14b6153f652d446c80079f4658e74fbf.pdf?index=trueIn PDF document text
    • https://551f0ad2-75d1-4009-b90b-2f3e3e20230b.filesusr.com/ugd/c2bf0a_aae1e3796c5a4da18aae579d2cc7b421.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/66490856475.pdfIn PDF document text
    • https://f26e6bca-ce10-4524-9610-ed5ef7c8d48b.filesusr.com/ugd/ac8c68_076c631359b145b0b56cb05c1c536182.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/cabin_fever_movie_in_tamil.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC78 5128 bytes
SHA-256: f82e3ace6ca804bbb49a48c95ff0c2a75a64c150cc1698689a3d67fc8f15fdb8