Malicious PDF — malware analysis report

Static analysis result for SHA-256 c007d7a61531c674…

MALICIOUS

PDF

72.5 KB Created: 2021-02-01 01:43:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 60604610b26223000fb7013f8bf20c1b SHA-1: 79610756ac0d928c0d30beeedc8f2a7a96bcc260 SHA-256: c007d7a61531c6747a24656e5e0ee833d3735fd5b5d609c00ebc94536cf17092
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://maypoin.ru/aws?utm_term=automation+anywhere+community+edition+free PDF link annotation
    • https://fukusegoboviv.weebly.com/uploads/1/3/1/8/131856281/dofigiwajato.pdfIn PDF document text
    • http://wiwusigeronisu.66ghz.com/accounting_template_for_rental_property.pdfIn PDF document text
    • https://zinelenugep.weebly.com/uploads/1/3/1/6/131636957/losetadupetu_fesusagu_povapifapumi_tonalinup.pdfIn PDF document text
    • https://sapesikunudob.weebly.com/uploads/1/3/1/3/131398489/memimolifup-fenepuku-wusujeg.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwuwigo/UMqic1C/defense_zone_3_hd_walkthrough.pdfIn PDF document text
    • http://xivoxuvawet.iblogger.org/fonusuxikekufibuxogewup.pdfIn PDF document text
    • https://cdn.sqhk.co/dakusoripujo/Gidigha/gravity_rider_zero.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/geiemia/wifi_file_transfer_for_pc_download.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/pjg9Xgh/64096419674.pdfIn PDF document text
    • https://cdn.sqhk.co/kolokejo/UMif85K/44716443269.pdfIn PDF document text
    • https://tavadubamik.weebly.com/uploads/1/3/4/4/134473349/forifopawosibol.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zoforex.rf.gd/bossier_city_police_arrest_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/73508375134.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/rise_league_of_legends_video.pdfIn PDF document text
    • http://gusalixofunek.epizy.com/army_pt_uniform_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/uses_of_computer_in_various_fields.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/ashkon_ke_leke_dhare_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/ritisorimozobaduxunowexi.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_off0000db9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9B 5232 bytes
SHA-256: 41701716604b719c389c8cbe27c83ea7952ee529c0ed79e5e36562d3e6e47708
font_01_sfnt_off0000ed52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED52 11132 bytes
SHA-256: 7443e8e10ae39053b26e9601dce1693e8d9c9cd25f4c4a45b22f33dc1074f51d