Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e0b07b226d3a4e6…

MALICIOUS

PDF

72.6 KB Created: 2021-02-25 09:47:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cf0e072948cd64e2e44ce919444f934f SHA-1: f0e7aef8c5a50859c348663f4a47dd759f024d94 SHA-256: 3e0b07b226d3a4e6b32e963c3b1c5a30c2a79245077ad74184554e080cd5eb2a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/wix?keyword=max+dirt+bike+3+y8 PDF link annotation
    • http://tosefabebiribow.scienceontheweb.net/notakigubetebuluvo.pdfIn PDF document text
    • http://trening-ekaterinodar.ru/74941314341epk7x.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/massey_ferguson_parts_list.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/tp_link_powerline_management_utility_download.pdfIn PDF document text
    • https://zopokobo.weebly.com/uploads/1/3/1/3/131383813/xubevawewe.pdfIn PDF document text
    • http://nabavawuzafurur.mygamesonline.org/how_to_know_if_a_car_seat_is_faa_approved.pdfIn PDF document text
    • https://bilunoxenaxu.weebly.com/uploads/1/3/4/4/134474733/8301134.pdfIn PDF document text
    • https://lewumirobubav.weebly.com/uploads/1/3/4/7/134762292/4234372.pdfIn PDF document text
    • https://tigibivimibi.weebly.com/uploads/1/3/4/3/134344299/zewagaripekon_menuxek_selepab.pdfIn PDF document text
    • https://xurarasetar.weebly.com/uploads/1/3/4/0/134096945/19accbf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376127/normal_60372efbc0c03.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453908/normal_5ff656e7dfedd.pdfIn PDF document text
    • http://jojidasusesot.sportsontheweb.net/how_to_drain_swamp_cooler_for_winter.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418379/normal_60372f9a62cdb.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/wizomoravazub/vodafone_mobile_wifi_software.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_off0000e16e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE16E 5344 bytes
SHA-256: e67f36a8d7588ead1fde650ec62de4bf02e5f35c4794c172d4c99f0055ea7bff
font_01_sfnt_off0000f3c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3C1 9940 bytes
SHA-256: 5a4fde56c6905e7c052055e8366ddb823dd14312168b215fe97c40eafee18035