Malicious PDF — malware analysis report

Static analysis result for SHA-256 876f1a72be3584ae…

MALICIOUS

PDF

70.4 KB Created: 2021-03-04 11:28:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 7b59f7bc03ae9386e7e7f2ee565833aa SHA-1: 6fec3736496478d1440c783534194e40454a68ec SHA-256: 876f1a72be3584ae48bee5705f282d16a01b222bb9329a07d0b1ad4ea7ff0cf8
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://zajinet.ru/aws?utm_term=graph%252Fgram+greek+root+words PDF link annotation
    • http://vurejowug.mypressonline.com/emotional_first_aid_training.pdfIn PDF document text
    • http://lizowaw.scienceontheweb.net/shaded_cream_long_haired_miniature_dachshund_for_sale.pdfIn PDF document text
    • http://5coupons.info/tutuwigimilowibewukunu0r3ox.pdfIn PDF document text
    • https://cdn.sqhk.co/tasaxasup/YdXhdjj/stargate_ancient_battleship.pdfIn PDF document text
    • http://magnitoli-2ekran.site/pasomemukuzapizimero42y.pdfIn PDF document text
    • http://paypallsecurity.com/161173076572hs22.pdfIn PDF document text
    • https://cdn.sqhk.co/noxuwitide/e1icHih/38169519862.pdfIn PDF document text
    • http://wugupomovupa.sportsontheweb.net/labuxobubuxej.pdfIn PDF document text
    • http://antonioit.space/xogerogefeturbbyb.pdfIn PDF document text
    • https://cdn.sqhk.co/gofejenizew/oieMMlV/fold_up_desk_chair_argos.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/how_long_does_navy_training_last_in_nigeria.pdfIn PDF document text
    • http://fofiwafajelerax.sportsontheweb.net/69395761957.pdfIn PDF document text
    • http://sallles.ru/game_super_mechs_kizi_3pf6vs.pdfIn PDF document text
    • https://cdn.sqhk.co/baxoladipezu/nJhejjX/aesthetic_tumblr_backgrounds_white.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/lorerexeg/7402962961.pdfIn PDF document text
    • http://lagozim.rf.gd/alliance_university_application_form.pdfIn PDF document text
    • http://mukanebesiva.atwebpages.com/nuvepajoledugugon.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/gudaroliwalonidarexas.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_off0000d63f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD63F 5564 bytes
SHA-256: 9a125ae830e9bffa575ac31926ddb5da9efdc8cbe0636b13b15ad596e5dd8bda
font_01_sfnt_off0000e91a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE91A 10388 bytes
SHA-256: 00f34d35a2fd21f52b10e2dce2801fba1d1f2ce6d45d8c1f9afd341208a70f60