Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff4d02de54cfab0e…

MALICIOUS

PDF

72.2 KB Created: 2021-02-26 16:55:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4dccfb77099e16bcb610758ae9a1d060 SHA-1: fc3e36983c4fa25319d62c02edce40a461eb9633 SHA-256: ff4d02de54cfab0ef80e5bec6348747661b4d29bc2a2ed9316a8b85305b4cb11
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://botokaw.ru/award?keyword=keurig+k+cup+k10+mini+plus+manual PDF link annotation
    • https://cdn.sqhk.co/rorajakura/igz6g2m/europe_empire_2027_mod_tokens.pdfIn PDF document text
    • https://cdn.sqhk.co/kimorotadopo/Lghhijj/green_papaya_salad_recipe_vegan.pdfIn PDF document text
    • http://copyrighytsupport.com/mevat5f8h1.pdfIn PDF document text
    • http://cuzinfo.ru/how_to_hook_up_boss_katana_to_computer6wjlb.pdfIn PDF document text
    • https://cdn.sqhk.co/rogenujudita/gsgfjhj/saxixuwa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458144/normal_601a6acaa361c.pdfIn PDF document text
    • http://relibafogat.sportsontheweb.net/42499193576.pdfIn PDF document text
    • http://siwupojotuj.getenjoyment.net/calendario_escolar_primaria_2020_madrid.pdfIn PDF document text
    • http://uscreditcheck.info/twilight_zone_movie_watch_free8880r.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459464/normal_60143ffd23b28.pdfIn PDF document text
    • http://jarewitof.mypressonline.com/22289673843.pdfIn PDF document text
    • https://cdn.sqhk.co/veletafi/iWNjgjh/game_dev_tycoon_2_apk_free_download.pdfIn PDF document text
    • http://punejew.mygamesonline.org/how_to_make_extra_money_on_the_side_from_home.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tiniruru/attendance_app_in_android_studio.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/bullock_animal_information.pdfIn PDF document text
    • http://vexabimumemig.atwebpages.com/impressora_brother_laser_monocromtica_hl-1202__boa.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_off0000dc3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC3F 5480 bytes
SHA-256: dcd446e326859dff7959da1c3cdafe7610cba566400ef23f6c26b5b19086acb4
font_01_sfnt_off0000eee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE1 11276 bytes
SHA-256: e750a4b2e29726c7676adafb5bd34f6276f08d5932040f7e29f67b56b18ca8db