Malicious PDF — malware analysis report

Static analysis result for SHA-256 a05061be8d2abff4…

MALICIOUS

PDF

73.1 KB Created: 2021-03-04 19:24:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f2c718bfcd8cbc9a12854d7b064c12db SHA-1: fd8f1cd347329a4cf1c898ec205331a7d08cc05c SHA-256: a05061be8d2abff4f2eeebddacced0806f28de7d7ad069d18b7ac4a8b07c1ae0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=scientific+inquiry+worksheet+pogil PDF link annotation
    • http://navevukosuso.mypressonline.com/hp_laserjet_4050_driver_mac_os_x.pdfIn PDF document text
    • http://bazunujovi.scienceontheweb.net/how_government_encourage_entrepreneurship.pdfIn PDF document text
    • http://joxitikoki.getenjoyment.net/wesozagomixorifofat.pdfIn PDF document text
    • http://kafikiwamavo.22web.org/gularumizelujivu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448724/normal_6010b6ede46a8.pdfIn PDF document text
    • http://sikevemekoma.mypressonline.com/12118932516.pdfIn PDF document text
    • http://keripudatoxene.iblogger.org/what_is_asatru_pagan_religion.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417405/normal_601acbfd2e4b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477637/normal_5fdb532ee66be.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418383/normal_5fc77b299ce72.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://furunes.onlinewebshop.net/yamaha_dgx_650_midi.pdfIn PDF document text
    • http://mirapate.rf.gd/ielts_practice_test_2_reading_answers.pdfIn PDF document text
    • http://wiwazisumi.rf.gd/starting_strength_routine_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22c1554e-2167-4533-870f-118f57cfa3e5/1122087035.pdfIn PDF document text
    • http://goseletew.epizy.com/migumawesi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edc54f05-e046-4fa7-a149-9343ea8cb719/data_structures_in_python_course.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dadc3d03-b38b-4bd5-b003-7016fcdf8495/call_of_cthulhu_edge_of_darkness.pdfIn PDF document text
    • https://3bdad275-8828-414d-9063-9532e035d791.filesusr.com/ugd/c67d0c_8b47627de5c345b8b265c84efd072a1f.pdf?index=trueIn PDF document text
    • https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_858adfe76e854d9fa9e0d06380feccf9.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffe851dd-65b5-449e-8336-3b1c649c9142/jitojerasekotonikuji.pdfIn PDF document text
    • https://14535e1a-360a-4d01-a655-fa33e115c80e.filesusr.com/ugd/b222ea_ab5db907a38c4c83a9418068498d7095.pdf?index=trueIn PDF document text
    • https://50fe66f1-00be-429c-ab6c-57a9f80d6ab9.filesusr.com/ugd/39cb9d_d178832bc7da4325a95cd8f3776ad882.pdf?index=trueIn PDF document text
    • http://ribibepope.epizy.com/vafuwalifesepigetafawa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e588a0b9-b017-4948-bdd4-95921bb447e2/how_can_you_tell_if_a_harry_potter_book_is_a_first_edition.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d42c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD42C 5436 bytes
SHA-256: 3cd1bd06f0dc95ddef39c7f2284347aa4e4553bc89b03b687cd3b82ccebb2e71
font_01_sfnt_off0000e6b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B8 9996 bytes
SHA-256: 6713d47b1ab98302a66576e0ca466650732541c10d39776a514d03b59cc4a0be
font_02_sfnt_off000108d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108D4 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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