Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cb01b7cfb82effd…

MALICIOUS

PDF

64.7 KB Created: 2021-02-22 22:49:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b12f4cfd0c108e4f8eb8940c62c16c3a SHA-1: fd2214cfa688958a8dd6152ae405d18e2a2df1a8 SHA-256: 5cb01b7cfb82effd617814e2c3bdf9358e87c681ca2504b679302f98817a8cc1
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://maypoin.ru/wix?keyword=incomplete+dominance+codominance+and+multiple+alleles+practice+problems+answers PDF link annotation
    • https://cdn.sqhk.co/saligoliti/BheQRZa/world_history_definition.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473926/normal_5fe2ea1fe91f3.pdfIn PDF document text
    • http://grenkasalo4.xyz/dawalazobobaso4qxw5.pdfIn PDF document text
    • http://discovljzg.fun/spiderman_movie_song7gvll.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_601baf075bb01.pdfIn PDF document text
    • https://cdn.sqhk.co/gixelotopa/idjjF3F/25260638113.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374835/normal_5fd8de8ef1766.pdfIn PDF document text
    • http://glawerry.online/callapp_premium_apk_free26coa.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/0b8ujhy/funny_pics_of_dogs_catching_treats.pdfIn PDF document text
    • http://xavelodezazil.iblogger.org/any_admin_free.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/oggcWge/emojination_2_answers_level_6.pdfIn PDF document text
    • https://cdn.sqhk.co/rapalaxob/gjc8zhj/one_night_ultimate_werewolf_game.pdfIn PDF document text
    • https://cdn.sqhk.co/xolanikipiz/hiNXsjd/kenisilap.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/hs2gghj/hd_car_wallpapers_for_laptop_windows_8.pdfIn PDF document text
    • http://masajsalonunuz.com/5th_grade_math_word_problems_workbookr29j.pdfIn PDF document text
    • https://cdn.sqhk.co/malevevipali/hihjhmi/minecraft_education_edition_apk_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460233/normal_5fd85a5fd7d66.pdfIn PDF document text
    • https://cdn.sqhk.co/rugofufol/hjyDifz/bikix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sinivexoxal.epizy.com/what_does_the_bible_say_about_declarations.pdfIn PDF document text
    • http://kuviwobabevi.epizy.com/sony_fs5_mark_ii_gimbal.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_off0000c272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC272 5388 bytes
SHA-256: 53221c006286130e9f2823050b07c544bb120f307c4ba1d376e17ad52767e9cf
font_01_sfnt_off0000d4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AD 9432 bytes
SHA-256: d928c69116a2dd8f022c5876f2c03500c115496bfaed309f38192d97f1decb23

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