Malicious PDF — malware analysis report

Static analysis result for SHA-256 17be0fa92edfa1f8…

MALICIOUS

PDF

75.2 KB Created: 2021-02-15 19:59:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f2efbcbd2d5bb7d687b5a6a2ff26f7a9 SHA-1: 1d47c2987ef64cff8a06977861b88401e79c45aa SHA-256: 17be0fa92edfa1f8462909b8a11c44338639549f2e7fecddb6abe0de1bc710a9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wb?keyword=the%20boy%20in%20the%20striped%20pyjamas%20book%20plot PDF link annotation
    • http://legendbilisim.com/fabanubadarukejarewemzqt.pdfIn PDF document text
    • http://ergors.space/1852040910p3uaw.pdfIn PDF document text
    • https://cdn.sqhk.co/vovusupa/iigijce/85800676883.pdfIn PDF document text
    • http://procripton.com/205838588151i0k8.pdfIn PDF document text
    • http://fuckfrsky.com/tyrion_lannister_biological_fatherp7xnf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445104/normal_6003dcdc58c90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489844/normal_5fdc02e3a10e7.pdfIn PDF document text
    • http://dsv-trening.ru/ruwagofalipejijazopijalob4z2rq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489414/normal_5fd9a4c111a62.pdfIn PDF document text
    • http://xozonline.ru/791874055589imd8.pdfIn PDF document text
    • https://cdn.sqhk.co/xiroxozalal/aihxgin/34889358727.pdfIn PDF document text
    • https://cdn.sqhk.co/timadupak/gA0TQnX/whatsapp_chat_with_business_account_means.pdfIn PDF document text
    • http://amsidgi.xyz/yamaha_moto_4_225_repair_manual_free_download8le7e.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/silubebebefuju/jigajofirefogevuziguvove.pdfIn PDF document text
    • http://dofumuligo.rf.gd/bimoliw.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_off0000ea9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9F 5532 bytes
SHA-256: 3a7b2af3d12fc689776f9eabf3964c076be0c431222866165488bbc6f2965ac7
font_01_sfnt_off0000fd41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD41 10032 bytes
SHA-256: 242962a22318da618420bfe1c689e89526b7efe5040512824b1a3a74ae474591