Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6576f5cb5dba2e5…

MALICIOUS

PDF

69.0 KB Created: 2021-03-10 15:51:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a6b4abee535b4cdf26c3676511992a2d SHA-1: 9d1dacfe2d0c7d8e47471b75bb8bc28874345b71 SHA-256: c6576f5cb5dba2e5a337d73e21a6db8e75b9b50af778c164a59f38e2bc8fbad7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://zajinet.ru/award?keyword=pdf+to+word+converter+download+offline PDF link annotation
    • https://cdn.sqhk.co/vorebilifi/fgcD5GR/83104485102.pdfIn PDF document text
    • https://cdn.sqhk.co/buzaxelubot/Wijgegc/citrix_receiver_for_android_not_working.pdfIn PDF document text
    • http://wide-take.top/lord_of_the_flies_chapter_10_discussion_questions6b7vi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387230/normal_602fd30daa59c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375528/normal_6023d564bd5ae.pdfIn PDF document text
    • http://wegansit.space/how_long_can_dog_live_with_arthritiszwz2o.pdfIn PDF document text
    • https://menanolunum.weebly.com/uploads/1/3/4/7/134754058/laxopefel-kikifusib.pdfIn PDF document text
    • https://xasirazabad.weebly.com/uploads/1/3/4/6/134699738/7cc4d.pdfIn PDF document text
    • http://wildboost.club/33896596236un6mq.pdfIn PDF document text
    • http://italiahot.space/what_you_learn_in_developmental_psychologyob3q2.pdfIn PDF document text
    • https://xowebanum.weebly.com/uploads/1/3/1/4/131453595/rarumaludezikef-dedinixab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483335/normal_5ffbb7c3e0728.pdfIn PDF document text
    • https://cdn.sqhk.co/pogadidotilu/IXeBGgc/85750630289.pdfIn PDF document text
    • https://wexigovepabenu.weebly.com/uploads/1/3/0/7/130738565/b35f2021a59d.pdfIn PDF document text
    • https://dopupuwupexiro.weebly.com/uploads/1/3/0/8/130813117/wumezejafero.pdfIn PDF document text
    • http://jukojuguvaloj.iblogger.org/65393376825.pdfIn PDF document text
    • http://reduslimitalia-oficial.site/que_es_languidez_etimologiam1qm2.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/27cf5ee6-49c4-4582-8dd5-7a6c09d92692/visisixogaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c027920-8e6c-48c7-9eca-27190caebda3/simulacro_de_evacuacion_2019_costa_rica.pdfIn PDF document text
    • http://woniwasazox.epizy.com/533564850.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51a384a8-6b38-4316-84ae-02cb3fbd21dd/walmart_black_friday_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa09e4c1-cdad-43c2-9e94-1aa8a5d8f4e0/the_black_prince_full_movie_download_okpunjab.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_off0000d312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD312 4992 bytes
SHA-256: 0ddea21a0580cef6ef8f45069bc42ce05a548024862241e57649fe40c4cc600b
font_01_sfnt_off0000e433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE433 10088 bytes
SHA-256: 21322a35d4a98dd859e78d39e4b0b4c10e00e5e4596fc29e4cc117aac9aae597

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