Malicious PDF — malware analysis report

Static analysis result for SHA-256 5484e883ed4bacd1…

MALICIOUS

PDF

70.8 KB Created: 2021-02-26 01:15:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 77dbc7bc903e523856591fadd4534aa1 SHA-1: bff001ba358403dcb18664016a09306155cc7ace SHA-256: 5484e883ed4bacd1d101866f4a482412eac0b57aba1501192cdde65695bea5e6
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/strik?utm_term=construct+2+free+version+download+for+pc+highly+compressed PDF link annotation
    • http://insta-sale.site/musekaxa4c0qc.pdfIn PDF document text
    • http://pigigozoruda.mypressonline.com/danby_dehumidifier_buttons.pdfIn PDF document text
    • http://fukuzowi.sportsontheweb.net/memodaxajababo.pdfIn PDF document text
    • http://naturmilans.fun/convert_ipython_notebook_to_online0hy3f.pdfIn PDF document text
    • http://kvrovk.xyz/yds_publishing_impact_grade_12_answeh8u1i.pdfIn PDF document text
    • http://bioforcecolumbia.site/35317381710xfnmx.pdfIn PDF document text
    • http://prizinsta365.site/44292110232hf94y.pdfIn PDF document text
    • http://shop-kid-toys.online/what_are_the_different_types_of_food_service_operationsiuplg.pdfIn PDF document text
    • http://braco.ru/jutaxisojifapuzukizap8enq.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/how_much_do_george_foreman_grills_cost.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bitines.myartsonline.com/33379269227.pdfIn PDF document text
    • http://bitines.myartsonline.com/40308573633.pdfIn PDF document text
    • http://perexuwofogefo.onlinewebshop.net/how_to_offer_prayer.pdfIn PDF document text
    • http://titugol.atwebpages.com/vunevimusenosi.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/authorized_letter_format_in_word.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_off0000d796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD796 5860 bytes
SHA-256: 8e7e0a9d8fbad385de8bab5aa4e41e29675674af5c866a19366deb7599074dd4
font_01_sfnt_off0000eb7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB7F 10104 bytes
SHA-256: 55830c5adcb0b87f792c6cfb3c3a2bba1d420bf25e5772a43cda99c8d5f49137