Malicious PDF — malware analysis report

Static analysis result for SHA-256 e014ff2244cf3543…

MALICIOUS

PDF

69.6 KB Created: 2021-02-22 00:49:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7e77fcc7d3b97bd0c07a1b87173bf469 SHA-1: 27ed3611f0ea59768505bd9eefcd2aced93a878c SHA-256: e014ff2244cf3543644a952a6adfe76a8b7401849ac88a9d65b3bad21e09c085
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=1491+libro+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4377120/normal_601b36e698ea0.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/ghkVhjV/car_racing_game_apk_download_for_pc.pdfIn PDF document text
    • https://figagukedeliv.weebly.com/uploads/1/3/4/0/134040575/65ea9ad39f4f5b2.pdfIn PDF document text
    • https://cdn.sqhk.co/vopokemib/cjdhdgj/just_drifting_for_caresse_psychic_tv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391893/normal_5fd0853ae564e.pdfIn PDF document text
    • http://reduslim-europa.site/bengali_movie_sathi_2002_freermd7u.pdfIn PDF document text
    • https://cdn.sqhk.co/fimegasaz/ghib6ib/xegami.pdfIn PDF document text
    • https://pebezudaxefen.weebly.com/uploads/1/3/4/3/134347708/gukaganajixo.pdfIn PDF document text
    • http://fimewot.xyz/spelling_practice_book_grade_6_answershei1c.pdfIn PDF document text
    • http://cactusvpn.live/57127033936rne43.pdfIn PDF document text
    • http://begetus11ppz.xyz/napujevewuworenijuvuozfpj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418566/normal_5fc71e2526a18.pdfIn PDF document text
    • https://cdn.sqhk.co/pigexebobe/ahdsicP/faxadenufogatipozakalusiv.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/egiblvI/45428609669.pdfIn PDF document text
    • https://muxolebutelun.weebly.com/uploads/1/3/2/7/132741382/0bb28fbdc749.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/pukaridimupo/riddles_for_adults_with_answers_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/95756821902.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/how_to_describe_a_blue_lake.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_off0000d5f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F5 4988 bytes
SHA-256: 60e44bc067d94433e66dba86fc3c056c0a495ffe7e5f8f76fed337a1c362e7fc
font_01_sfnt_off0000e6fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6FB 10236 bytes
SHA-256: 8e8bd6745d8ee9a114480d5b6e76bb35932eb1ca4e513f596f286a617ef4f5b7

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