Malicious PDF — malware analysis report

Static analysis result for SHA-256 d90d9d2d3a5f705e…

MALICIOUS

PDF

70.7 KB Created: 2021-03-31 18:54:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7e8bd00c387f565c4e04d7479ec07b34 SHA-1: 6d777c0102add3ac19ab58fa23af9120a2f9f2f4 SHA-256: d90d9d2d3a5f705ef15f22dea675fce8c36b5bcef4783c757ec7d1734f48dca6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=synergy+ring+maplestory PDF link annotation
    • http://sifimomikev.sportsontheweb.net/medicinal_plants_in_kerala_malayalam.pdfIn PDF document text
    • https://vobilazi.weebly.com/uploads/1/3/5/3/135300702/8411081.pdfIn PDF document text
    • https://lenapejasuma.weebly.com/uploads/1/3/4/7/134749539/pijoxozepofosirugixa.pdfIn PDF document text
    • https://kigekasomek.weebly.com/uploads/1/3/4/5/134598498/077448.pdfIn PDF document text
    • http://nutitoku.22web.org/dapufepumexogixine.pdfIn PDF document text
    • https://feroraja.weebly.com/uploads/1/3/0/9/130969346/f1df4.pdfIn PDF document text
    • https://gimoxawoja.weebly.com/uploads/1/3/1/3/131380550/gejisa-ridoduzapen-feroxafad-fotuxem.pdfIn PDF document text
    • http://pozuvixa.getenjoyment.net/1338678029.pdfIn PDF document text
    • http://pelinebaj.mypressonline.com/cyberpunk_2077_johnny_silverhand_gun.pdfIn PDF document text
    • http://getubij.66ghz.com/cinema_v2._0._5_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c5ee33e-8a56-4946-9fdf-b2620a0c5cb2/47282186588.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/susajaxafodefeku.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/ecg_test_strips_practice_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea58da9c-a06a-4551-819a-0e508606f8ff/two_letter_airline_code_az.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2721427-8667-43f8-ac27-51e570240c14/wall_decal_installation_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/printable_math_worksheets_dividing_fractions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff8b2fe0-b27c-4fd3-a7c1-4df514b0b33f/south_indian_vegetables_names_with_pictures.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da6ad063-cfb4-4b10-b71e-47f7e237973d/analog_circuit_design_textbook.pdfIn PDF document text
    • http://vulomalizekuvu.rf.gd/funny_groom_wedding_speech_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/24985165967.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/79138619448.pdfIn 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_off0000d615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD615 5344 bytes
SHA-256: bc2bed26ec5a9f9513c170f2ef67beec34352bf6dfc7b944237e035ff86c9f50
font_01_sfnt_off0000e82f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82F 10964 bytes
SHA-256: 9274ca8145c85cda63d4decf8db4149ee8d3d72a9f774e656c72e6ed6ce08e8a

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