Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e256e0694ae3785…

MALICIOUS

PDF

74.1 KB Created: 2021-03-04 11:55:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5c1b60d46651f1630aa414ad8286327e SHA-1: a03b31d2043782fc393bad48b70cab49cf17f5b1 SHA-256: 9e256e0694ae378548b02907e9f8640fb60f5713d83118472360909027ef6d57
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://nipisod.ru/aws?utm_term=how+to+clean+a+high+efficiency+top+loader+washing+machine PDF link annotation
    • http://fekevopimibun.sportsontheweb.net/52650291065.pdfIn PDF document text
    • http://luziniwanemek.sportsontheweb.net/is_dance_of_dragons_the_last_book.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzifixe/p1xjihh/dawomolirabazutirugusaka.pdfIn PDF document text
    • https://cdn.sqhk.co/sudofeno/blgheia/bike_games_online_3d_rally_racing.pdfIn PDF document text
    • https://cdn.sqhk.co/xubuzivo/fOvePLQ/janusomikuzepovugi.pdfIn PDF document text
    • https://cdn.sqhk.co/dogutadova/jDjdEjg/ludo_classic_vs_popular.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450516/normal_5fdbd152886b7.pdfIn PDF document text
    • http://leoidet.xyz/free_printable_blank_bingo_cards_templatejv53s.pdfIn PDF document text
    • http://net-klientov.ru/aircraft_structural_repair_technician_salary_canadajnl7o.pdfIn PDF document text
    • http://velesvoyage.ru/cat_simulator_kitty_craft_mod_apkwc9cw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415754/normal_5fd1efc172643.pdfIn PDF document text
    • https://cdn.sqhk.co/rizijuwet/jajcLjg/the_loudest_voice_serie_tv_wiki.pdfIn PDF document text
    • http://dunodipike.sportsontheweb.net/nogalu.pdfIn PDF document text
    • https://kawijidaxo.weebly.com/uploads/1/3/4/8/134891868/gitibefiwafexap_bukelewokek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://padusij.onlinewebshop.net/sijelagofererurowovagope.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_off0000e4c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C2 5724 bytes
SHA-256: 37bb8c7f7d8b5c3aa823f90764df494fd4415d49491798e90e56066cb9379386
font_01_sfnt_off0000f82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82D 10184 bytes
SHA-256: 3f9a4313ecdf65fd109c6c1c4b30754a0d3aee2f0ceebeec66ba641c933995c7