Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fb44c4b7b6b6bfd…

MALICIOUS

PDF

76.5 KB Created: 2021-02-19 05:29:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1057a349e100488d7a9f9e6d93048c52 SHA-1: ed1f1561435bfee6dda6fc8cb4edac9300193dac SHA-256: 2fb44c4b7b6b6bfdf0e2045361a04b78433905b4db38474eb337d9eb074d32ef
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/wix?keyword=dna+from+the+beginning+webquest+answer+key PDF link annotation
    • http://womenit.space/chandra_chakori_movie_song_kannadapmce5.pdfIn PDF document text
    • https://wobanavemo.weebly.com/uploads/1/3/4/0/134096337/4973059.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469626/normal_602dda63e3356.pdfIn PDF document text
    • https://vubopedu.weebly.com/uploads/1/3/6/0/136083963/jerewomotig.pdfIn PDF document text
    • https://cdn.sqhk.co/jaruxabal/bijihhb/burger_time_game_boy.pdfIn PDF document text
    • https://serarabasujuz.weebly.com/uploads/1/3/1/6/131606617/luzuwozoxi_zazuzewufegu.pdfIn PDF document text
    • http://meetsalle.xyz/vetajusemibasivebipasinolfxq8w.pdfIn PDF document text
    • https://wedufejaf.weebly.com/uploads/1/3/4/0/134018106/75ad67d39ec5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413374/normal_5fe3818d777a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375093/normal_5fe76a1d896c6.pdfIn PDF document text
    • http://wojifos.22web.org/school_uniforms_should_be_mandatory_debate.pdfIn PDF document text
    • https://fobanuvoba.weebly.com/uploads/1/3/1/6/131637247/9654491.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/PyhaWie/nunulelusezisipavuk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459917/normal_5ffb26ee1b355.pdfIn PDF document text
    • http://adanakebap.org/waxosesudajs99ff.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000eebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBC 5672 bytes
SHA-256: c0e09909c2308dee51fe3b804a66798adfe061cf448c370fef70b737fa733c71
font_01_sfnt_off00010205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10205 10300 bytes
SHA-256: d18ef0acc69eea83a2f401b1b29269f15d969b81abdb38432dd5452d61866d70