Malicious PDF — malware analysis report

Static analysis result for SHA-256 112fa3f13f83ac1c…

MALICIOUS

PDF

76.5 KB Created: 2021-03-12 03:59:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0b4315a78e3d84a45b96e795ef7767ea SHA-1: dfdb48bc420aac4e10c6c4e5cabb1e75b8e80a7d SHA-256: 112fa3f13f83ac1c766cdf9d935823f7a9468f14f066e18250d4c6806c82b791
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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
  • 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://xajibur.ru/wix?keyword=labrador+puppies+for+sale+michigan PDF link annotation
    • https://cdn.sqhk.co/xiwogoxozoxi/GhfifyA/69984302313.pdfIn PDF document text
    • https://sadutixonigonu.weebly.com/uploads/1/3/1/4/131412491/wasureme.pdfIn PDF document text
    • http://jonipifenukiz.mygamesonline.org/social_psychology_11th_edition.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/jarufi.pdfIn PDF document text
    • https://cdn.sqhk.co/fujigugi/jfZVgee/xuzeb.pdfIn PDF document text
    • https://cdn.sqhk.co/jenetuwuda/jjhjihW/10831320887.pdfIn PDF document text
    • https://xelixexojiga.weebly.com/uploads/1/3/4/1/134108676/muzomulogid_vomipumanumal_kelipisedaf.pdfIn PDF document text
    • http://fofiwafajelerax.sportsontheweb.net/maths_textbook_for_class_7_ncert.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ac3db616-04cb-40f1-8357-c67041f5e20c.filesusr.com/ugd/eda9ba_463d0833754244aaa628f9feda287d94.pdf?index=trueIn PDF document text
    • https://c0b8f06b-4e98-4d3d-89ef-2f08caba629a.filesusr.com/ugd/0c8cc8_81d1453978624b7ea332a106cfd6568e.pdf?index=trueIn PDF document text
    • https://bb4a6ffa-96d3-4132-94d3-a1d2cbc717b0.filesusr.com/ugd/0182ef_b00803efb0894d18bc41d0aba2e7a7ef.pdf?index=trueIn PDF document text
    • http://lavofedelozus.rf.gd/bolton_sixth_form_college_application_deadline.pdfIn PDF document text
    • http://nojisibi.rf.gd/mrs_piggle_wiggle_read_aloud.pdfIn PDF document text
    • https://d4180a97-8dd0-4bf1-9e2f-d1b128d1a64d.filesusr.com/ugd/ae059d_c3d1e9db32254ce8990c0de9d650f86a.pdf?index=trueIn PDF document text
    • http://tuvalej.epizy.com/consumer_report_dishwasher_ratings.pdfIn PDF document text
    • http://nekopujopulo.rf.gd/captain_underpants_movie_free_download.pdfIn PDF document text
    • https://0793e221-2e7e-4176-aae8-4ff4b75d8f7a.filesusr.com/ugd/64bd79_84210859b47e45039040fe594295a3d6.pdf?index=trueIn PDF document text
    • https://02796127-04ec-4c85-b270-c6f7310ebb18.filesusr.com/ugd/ce0e6d_33ad5154ddfd4c36b2dbbca7f3270d0c.pdf?index=trueIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDFE 5652 bytes
SHA-256: 4f01723f430f2d01542fc2a43d5419cab19683afc59b1764b5e6ca4101278d94
font_01_sfnt_off0001010f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1010F 10520 bytes
SHA-256: 67ea5ea21603784cece7777ce1d676c7ed5bb63a5f90cccaad4967ddb7639875

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