Malicious PDF — malware analysis report

Static analysis result for SHA-256 60f4872cb027ae6d…

MALICIOUS

PDF

71.7 KB Created: 2021-02-08 20:52:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 454ed656fc6b5435c0fe9b0d4dfc0c67 SHA-1: bc0263a160a6802c11a5e65054516f57118181ab SHA-256: 60f4872cb027ae6d012aeacb537fff714160e3dc5f0cebedc330afa5894146ca
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://jottigo.ru/wb?keyword=remarks%20dispute%20resolved%20reported%20by%20grantor PDF link annotation
    • https://wariraxaluxar.weebly.com/uploads/1/3/3/9/133986847/vipej_zinejobuluz_dafuziwuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471688/normal_5fda8dfeb6eba.pdfIn PDF document text
    • https://cdn.sqhk.co/bavozazav/Gfje1wu/gsmarena_iphone_11_pro_max.pdfIn PDF document text
    • https://cdn.sqhk.co/seseniluvus/nThdiad/my_airtel_number_plan_details_prepaid.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/hjiihgI/international_pizza_day_2020_nz.pdfIn PDF document text
    • https://lekusimije.weebly.com/uploads/1/3/1/3/131383821/dakezali_ligopomika_bawapawusubese.pdfIn PDF document text
    • http://datab.vip/diy_halloween_paper_crafts_easyme41e.pdfIn PDF document text
    • https://cdn.sqhk.co/noligigibar/dhiOCii/41414027405.pdfIn PDF document text
    • http://klossheff.xyz/el_anillo_de_los_nibelungos_pelicula_online_espaol_latinoyjdvb.pdfIn PDF document text
    • https://woremudof.weebly.com/uploads/1/3/4/7/134701645/06a05e5e1a.pdfIn PDF document text
    • https://kitopelok.weebly.com/uploads/1/3/4/3/134355781/7635809.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413347/normal_5fef3da8675ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406455/normal_5ffbebcdef0fe.pdfIn PDF document text
    • http://my-credit.info/9135857251wqc1m.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/kefiperizonofu/causation_ratification_of_the_us_constitution_worksheet.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_off0000d828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD828 5652 bytes
SHA-256: 7aae0781a18d66e982cbdc5284d44061321b5d5123ea99d5966ca99d178ef78a
font_01_sfnt_off0000eb59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB59 10956 bytes
SHA-256: 00db6d3772a9a19ee7be77c1e4c2314f5034e60c81bd66438d1a52432087ee8c

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