Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bd77cee4b8b4ce4…

MALICIOUS

PDF

72.6 KB Created: 2021-02-25 23:03:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 60ea2f7c82e3047fdb37ae1570c8d0fe SHA-1: 017bc47f83a6b7211ee21290b496de4943ab1e20 SHA-256: 4bd77cee4b8b4ce4a0baabcd9fe76ed8c1ea69c60b2206a8bc8f9697a2eb9d25
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://seumenha.ru/award?keyword=how+to+reset+a+tablet+to+factory+settings PDF link annotation
    • http://wogivodugakovek.mygamesonline.org/17397731514.pdfIn PDF document text
    • https://cdn.sqhk.co/lapefuxolu/kgjBCia/download_game_sea_monster_city_cheat.pdfIn PDF document text
    • https://cdn.sqhk.co/xivomojuf/rnjbhah/gukajerujorose.pdfIn PDF document text
    • http://sijemogezabusa.sportsontheweb.net/kinetico_water_softener_service_near_me.pdfIn PDF document text
    • http://zikewexer.scienceontheweb.net/bedemexekamatesuvaguga.pdfIn PDF document text
    • https://gujetorepirun.weebly.com/uploads/1/3/4/5/134502828/6816420.pdfIn PDF document text
    • https://sirowatogiwu.weebly.com/uploads/1/3/2/8/132814809/5019176.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/is_sat_required_for_class_of_2022.pdfIn PDF document text
    • https://cdn.sqhk.co/zitedefew/4rjaigV/zalewosesosogiwigixemos.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/jWje0lg/pirates_of_the_caribbean_tow_game_mod_apk.pdfIn PDF document text
    • https://soxexovefulobi.weebly.com/uploads/1/3/1/4/131484328/webijol_nenolubiku_nesovi_tosipeko.pdfIn PDF document text
    • https://fuvekusegubo.weebly.com/uploads/1/3/4/7/134736786/jasewawagaxeliz.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/zixaj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pikubub.onlinewebshop.net/how_to_do_the_google_thanos_trick.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/scrabble_game_free_for_android_phone.pdfIn PDF document text
    • http://zotubune.myartsonline.com/grigori_grabovoi_methode_trke_indir.pdfIn PDF document text
    • http://makakanow.onlinewebshop.net/denabuxefo.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_off0000e0f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F7 5344 bytes
SHA-256: c4f55d9fa45c449ee66cf08642087aff2bfbcb7069ec66f72d83cb2d9a882dae
font_01_sfnt_off0000f351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF351 10044 bytes
SHA-256: 5e5cc176a0a93d6f1027fbcfceb12cae12aec8270c7e0659170f96b46cf667ab