Malicious PDF — malware analysis report

Static analysis result for SHA-256 f015f3608ffbcc9e…

MALICIOUS

PDF

76.9 KB Created: 2021-03-10 10:03:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a7bee7bdb3f7bbefd5605f26e84b145b SHA-1: 1ef5daaf37da026891244d8742c75399a889c57b SHA-256: f015f3608ffbcc9eda9ec776db900f8295b56f879036779faa02f25211256967
186 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
  • 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://vilenefex.ru/aws?utm_term=how+long+does+it+take+to+cook+a+turkey+in+a+infrared+fryer PDF link annotation
    • http://prequester.online/77327191735ndld1.pdfIn PDF document text
    • https://pukakiliratof.weebly.com/uploads/1/3/4/7/134768090/5514174.pdfIn PDF document text
    • http://bivaxosufuxibo.mygamesonline.org/spirited_away_one_summers_day_guitar_chords.pdfIn PDF document text
    • http://bometaximom.scienceontheweb.net/ipod_nano_2nd_gen_release_date.pdfIn PDF document text
    • https://jatilupek.weebly.com/uploads/1/3/4/4/134491857/1138634.pdfIn PDF document text
    • https://rinuvimasajef.weebly.com/uploads/1/3/2/6/132695862/b9bb4d612db.pdfIn PDF document text
    • https://taxusuxegob.weebly.com/uploads/1/3/3/9/133997122/4425808.pdfIn PDF document text
    • https://kasugokadudibuk.weebly.com/uploads/1/3/4/7/134740653/5393404.pdfIn PDF document text
    • https://janusutaxukokaf.weebly.com/uploads/1/3/5/3/135347272/fewutomabopoluno.pdfIn PDF document text
    • http://bedating.online/kaabil_full_movie_720p_blurayfd9zb.pdfIn PDF document text
    • http://tophomework.space/accounting_information_systems_11th_edition_bodnarfsu10.pdfIn PDF document text
    • https://xopugexufejan.weebly.com/uploads/1/3/4/7/134709921/a176a9a3f3.pdfIn PDF document text
    • https://givepatodanino.weebly.com/uploads/1/3/6/0/136097232/najajirivikoker-titozosepewab.pdfIn PDF document text
    • http://lewijufe.sportsontheweb.net/fimebo.pdfIn PDF document text
    • https://vomagorawu.weebly.com/uploads/1/3/4/7/134720662/gomizujumisipexare.pdfIn PDF document text
    • https://bezujopejot.weebly.com/uploads/1/3/1/6/131606295/5935384.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/gedexim/minuet_in_g_minor_bach_free_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/should_coronavirus_pandemic_be_capitalized.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_off0000ee59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE59 5408 bytes
SHA-256: 2021035ff75c0af7636b5308ba8071b1f428feb65e3a63899dba98cb26be2de1
font_01_sfnt_off000100ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100EF 10812 bytes
SHA-256: bf002583fe4491ad4937aeb014240391f09bec73d0bf721ab90ed580b62b26c2

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