Malicious PDF — malware analysis report

Static analysis result for SHA-256 78ba951914b41466…

MALICIOUS

PDF

73.1 KB Created: 2021-03-02 17:56:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e5b84b7b93a5b99cd4e526714142626a SHA-1: fd3e36a784164ccb5a62bd32f5682956f5b36494 SHA-256: 78ba951914b41466da2d73832fa0bfeddb0367b2f99578f06e9c3acacd694dff
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nipisod.ru/wix?keyword=words+start+with+r+to+describe+someone PDF link annotation
    • https://cdn.sqhk.co/kixagixupo/n9bgejf/xovajezom.pdfIn PDF document text
    • https://cdn.sqhk.co/navozaxezini/aKyrwic/pazogemotuliw.pdfIn PDF document text
    • http://veselutut.mywebcommunity.org/55146206219.pdfIn PDF document text
    • https://jufavufopu.weebly.com/uploads/1/3/4/3/134340263/2790569.pdfIn PDF document text
    • http://saxobupazes.sportsontheweb.net/how_many_years_can_you_go_to_jail_for_prostitution.pdfIn PDF document text
    • http://vuwimoxit.mygamesonline.org/equivalencia_pulgadas_centimetros_tuberias.pdfIn PDF document text
    • https://cdn.sqhk.co/jifedibodo/OghjdE1/razor_dune_buggy_go_kart_for_sale.pdfIn PDF document text
    • http://kajejib.medianewsonline.com/degimetaxowifamag.pdfIn PDF document text
    • https://bixoriwapavam.weebly.com/uploads/1/3/4/7/134731951/wakafa.pdfIn PDF document text
    • https://tixusevonatafix.weebly.com/uploads/1/3/4/6/134611731/mararemewifujax.pdfIn PDF document text
    • http://jolijivik.scienceontheweb.net/15158051662.pdfIn PDF document text
    • https://cdn.sqhk.co/venitalobeni/idjdign/muwevijoraki.pdfIn PDF document text
    • https://vidafipi.weebly.com/uploads/1/3/1/6/131636743/fokubedipofesuz-libomodif-wonemikix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://taguloxutenafol.myartsonline.com/is_traktor_pro_free.pdfIn PDF document text
    • http://gutekuretejapoj.onlinewebshop.net/xusexijikifefagowe.pdfIn PDF document text
    • http://vunonam.atwebpages.com/poxuvove.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_off0000e168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE168 5392 bytes
SHA-256: f6db9329340d66c5cf1028750faa3f6a4b6b45eb4adc56215d25942f839e2515
font_01_sfnt_off0000f3a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A6 10528 bytes
SHA-256: 975cb84e1cf6c5d2d8ff8ae75a2c37e6b7ee8168a672f11a0277a14df8b8a65e