Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fb3000212935733…

MALICIOUS

PDF

77.4 KB Created: 2021-03-13 16:44:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 146e33801438d2d3ec00278c6cc0ea16 SHA-1: 04102f77265c50db56f4091894c598a146258589 SHA-256: 8fb3000212935733576546771e01f8cd3bbabe1f4164242fd24728d43773af08
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://druttle.ru/award?keyword=differentiate+between+descriptive+and+inferential+statistics+pdf PDF link annotation
    • https://kaxitojuwomig.weebly.com/uploads/1/3/5/3/135302818/8966140.pdfIn PDF document text
    • http://katipef.medianewsonline.com/assured_shorthold_tenancy_agreement_download.pdfIn PDF document text
    • https://cdn.sqhk.co/sivojadirabe/jrjgjhS/magic_knight_rayearth_episode_1.pdfIn PDF document text
    • http://starkrobotics.org/pokemon_lightning_yellow_gba_rom6fysg.pdfIn PDF document text
    • https://miwolugakibu.weebly.com/uploads/1/3/1/3/131383652/telinebu_dijon_febanowisexim_giduxena.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/aaDa8ja/70149509719.pdfIn PDF document text
    • http://woziwowariv.sportsontheweb.net/what_is_ethics_in_criminal_justice.pdfIn PDF document text
    • https://cdn.sqhk.co/vakanaju/gehcihY/javeresozogewikinewasama.pdfIn PDF document text
    • http://tamakar.xyz/amazon_photos_app_androidk3fw3.pdfIn PDF document text
    • http://plsale.pro/monatixegipapivowibofubiqi8zv.pdfIn PDF document text
    • http://copyrightsupporteds.com/nascla_contractors_guide_to_business_law_and_project_managementl3c86.pdfIn PDF document text
    • http://meetraisins.club/how_do_i_make_my_apple_mouse_discoverablerdafu.pdfIn PDF document text
    • http://pitushok.space/38889326599o29pu.pdfIn PDF document text
    • http://jedusajinud.mygamesonline.org/747305176.pdfIn PDF document text
    • http://prizyivnik.ru/sweet_potato_health_benefitsj79wp.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/7109f387-8b97-459a-96d4-45b7dd0390b6/github_python_machine_learning_book_2nd_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4dc6560e-62fc-427c-b1e5-65006b60b444/heat_and_glo_fireplace_dealer_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a16d51f4-21a2-4bc2-b086-502ceac0f4c6/best_perfume_dupes_2020.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_off0000f125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF125 5440 bytes
SHA-256: 9de72783b08c2649625cfe76d6fb6167931f5cbe8cca255e6062c5bbc3b6df3e
font_01_sfnt_off000103cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103CD 10596 bytes
SHA-256: 43c9a260177160d230e1879a50d37db9b2336c384ada7017acee6ab50576ba14

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