Malicious PDF — malware analysis report

Static analysis result for SHA-256 86334e59f2ddb3f7…

MALICIOUS

PDF

69.4 KB Created: 2021-02-07 11:02:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5f03abcda7c8fb0ee88faa0ab80b5daa SHA-1: 5d0a8f2665faa3008e33b08476b92c265ccc1938 SHA-256: 86334e59f2ddb3f76e992877dc9ed8d67017cbcb2715d64d15cdff0009454c53
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/aws?utm_term=canada+online+job+application+form PDF link annotation
    • https://nokesopupikes.weebly.com/uploads/1/3/4/7/134767934/dikoziwexagazofebe.pdfIn PDF document text
    • https://cdn.sqhk.co/rawegili/ohcCA91/sales_management_jobs.pdfIn PDF document text
    • https://cdn.sqhk.co/lofakekaf/1ia5hbA/ludo_star_2_for_pc_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369631/normal_60187977b2c38.pdfIn PDF document text
    • https://cdn.sqhk.co/bogonelemid/micjitx/2727848683.pdfIn PDF document text
    • https://pujapuvefebawu.weebly.com/uploads/1/3/4/5/134581836/joluzug.pdfIn PDF document text
    • https://cdn.sqhk.co/lojulifuvuxu/jFqhaid/23675437653.pdfIn PDF document text
    • http://podarokinsta.online/93235451498k2nkn.pdfIn PDF document text
    • https://cdn.sqhk.co/nibedogoxov/2dhb36V/71598608877.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490274/normal_5fdc264508152.pdfIn PDF document text
    • https://finuvowevemez.weebly.com/uploads/1/3/5/3/135397693/vexex.pdfIn PDF document text
    • https://fisujurij.weebly.com/uploads/1/3/1/4/131437504/vikizini.pdfIn PDF document text
    • https://mifanupomiseri.weebly.com/uploads/1/3/2/6/132681757/lopomagabogu_xudezejurijax_bibotoj_jovikigabiwido.pdfIn PDF document text
    • http://klokisik.space/genejewanldado.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/pekatikisuruki/unstable_angina_ecg_report.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_off0000d4a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A8 5244 bytes
SHA-256: 283f09dcaf1a701e616c4bfd8089dbf3dbb00ee591b834288bb964b5c4440fd0
font_01_sfnt_off0000e669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE669 10096 bytes
SHA-256: b2d4b3ed2d0b5e1bdd4d7940d943078a1823edf9f1b90243a2cee790196cff5e