Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa0483e91e063672…

MALICIOUS

PDF

71.5 KB Created: 2021-03-05 19:20:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6f195cc868fcfeb1a19d6ee8b8b5e185 SHA-1: 679333b58afb0391d2270358ad3fe0098ab2a100 SHA-256: fa0483e91e063672458eb9489d3e01a152a9dcd5941f4d307aabc4d6676802b8
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://gimoguvi.ru/wix?keyword=toucher+pro+premium+1.16+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4490757/normal_60172a276d480.pdfIn PDF document text
    • https://wawodupalise.weebly.com/uploads/1/3/4/6/134621762/efa68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446636/normal_603534add5a3b.pdfIn PDF document text
    • https://jisawawaxiwibes.weebly.com/uploads/1/3/1/6/131606947/bubotitilifit_mevegalifeva.pdfIn PDF document text
    • https://budojidotepaso.weebly.com/uploads/1/3/5/3/135312143/vovezuvo_ragatijelom_vituvamofar_xixew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445550/normal_6033f72909ec9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381344/normal_5fdd92a384e83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489977/normal_6031772d36ee2.pdfIn PDF document text
    • https://vekekugez.weebly.com/uploads/1/3/4/8/134883785/1680056.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418755/normal_5ffc9986a95cf.pdfIn PDF document text
    • https://wovukevaz.weebly.com/uploads/1/3/4/5/134523328/zowofotisepebom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/45f018ac-a466-4696-8332-baffcb83bdbd/how_to_reset_rca_tablet_wont_charge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58ea6e1f-6a82-4f26-95f5-e883586bccf2/nonton_film_after_met_you_full_movie_iflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60249999-84c2-4bb4-91de-192374568c88/madivejunizezub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b261d4d5-c921-4cd0-9506-9707a2f4d0a6/rivofirikafuzexu.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_off0000dd06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD06 5216 bytes
SHA-256: 9de8411eb48f1f31cae32ac42f0043f33fe57d87d0d640a74403d8fb1ba56a3c
font_01_sfnt_off0000eea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA7 10112 bytes
SHA-256: b78dcb4a2c2579da06df36b78008c60e1bd21694a71e11611ec455c73b36eeec