Malicious PDF — malware analysis report

Static analysis result for SHA-256 144c7901bef0307f…

MALICIOUS

PDF

73.2 KB Created: 2021-03-05 04:12:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 81dbbad16028d41baad4951a1d9c824e SHA-1: a04f330e6bc90483c775d6c472de20c8dc8404f6 SHA-256: 144c7901bef0307f8be17ecc0a4d182ec358d6379662524e7525587c836f7046
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://fokemale.ru/award?keyword=what+is+the+rule+for+the+3+times+table PDF link annotation
    • http://smirno.life/zaruxesebamezunuruvu9tte6.pdfIn PDF document text
    • https://sipexagugiresu.weebly.com/uploads/1/3/4/6/134607427/jojorugawapiko_zagukuwegojit_luluja_toxajusewomo.pdfIn PDF document text
    • https://cdn.sqhk.co/pesegozod/i2ihgfH/google_lens_app_ios_download.pdfIn PDF document text
    • http://useporte.xyz/what_were_three_main_points_of_the_declaration_of_independencesxyjl.pdfIn PDF document text
    • http://itactical.xyz/nebupomakokudiwikew921wb.pdfIn PDF document text
    • https://fobinoxibenor.weebly.com/uploads/1/3/1/4/131437242/9172096.pdfIn PDF document text
    • https://jokinurelebuvet.weebly.com/uploads/1/3/1/8/131856462/tuvoleko-bajefowas-womipizavix.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/fjf7hb4/67880100980.pdfIn PDF document text
    • http://regvoolkim.website/diary_wimpy_kid_double_downhiyze.pdfIn PDF document text
    • http://draiwenstore.online/zokilatola84p6q.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/godoremitiwuja/information_about_india_gate_in_simple_english.pdfIn PDF document text
    • https://081e7fb2-604d-424b-9b75-a58d54a71a44.filesusr.com/ugd/abd6ea_856ef3b803444e92baf1b7cbd1c19489.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bepukuba/sole_f80_treadmill_service_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04dafb9c-540d-4ebd-b7aa-fa7fcb5d311a/96754712137.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/flirting_in_the_air_full_movie.pdfIn PDF document text
    • https://d80868e2-5d34-4dda-9345-0396294a35aa.filesusr.com/ugd/f9fac6_c99634df87494b7e9d18c24e09ada63a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cf7e93c-22d6-4862-bba0-98f399645944/is_there_going_to_be_a_warrior_cats_movie_2020.pdfIn PDF document text
    • https://2f60c0de-bae8-48d8-8f3f-ce7907f87c52.filesusr.com/ugd/badafb_0e1da73ff8844d0b9306ee7201e94d08.pdf?index=trueIn PDF document text
    • https://9e2bb560-353e-4f5d-a08b-1363560edab4.filesusr.com/ugd/6c032c_b6dd45624a314767af8fbfe5fa50c079.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/df43d4fb-01ef-4275-986c-77db0a61e81c/zegisapofarepikorosaj.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_off0000e201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE201 5324 bytes
SHA-256: ad8ecedc3c4b39f123d584b550a280a2cbd648b64b88c52f017efb4cb0be4b8e
font_01_sfnt_off0000f3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FE 10344 bytes
SHA-256: f21884c5e9ccba5fdf7919633c9a91e538918b36ba3aee6a91a382a05607c573

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