Malicious PDF — malware analysis report

Static analysis result for SHA-256 b20ce46923d8f78a…

MALICIOUS

PDF

71.5 KB Created: 2021-03-01 07:55:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 198c71a1843e887cc5ea3ef75488996a SHA-1: 3dd1e6fb33f4cf8015ecea9c5013e0f8080313e6 SHA-256: b20ce46923d8f78a00f33602f33a49cc7644101cc34cabb4c928fa798e2e757b
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://resalured.ru/wb?keyword=thermo%20fisher%20isotemp%20freezer%20manual PDF link annotation
    • http://instapodarok.site/how_to_check_my_covid_19_test_result_online_in_indiaau94i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452834/normal_6021ebbb54b0d.pdfIn PDF document text
    • https://cdn.sqhk.co/jenireni/WjbieOe/hills_of_steel_2_vs_2.pdfIn PDF document text
    • http://romeita.space/bebovusla123.pdfIn PDF document text
    • http://faceskinagainbeauty.xyz/endocrine_system_disorders_lab_answer_key45lq0.pdfIn PDF document text
    • http://fitness1.space/8_ball_hero_relaxing_billiards_gameb26xa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402000/normal_5ff6b860553b6.pdfIn PDF document text
    • https://rolarijigajegij.weebly.com/uploads/1/3/1/4/131438579/gorukazaxefo.pdfIn PDF document text
    • https://dodoxatufasiw.weebly.com/uploads/1/3/2/6/132681482/denuzusutusita.pdfIn PDF document text
    • http://wonder-ita.space/majagofibavukimimalygrwt.pdfIn PDF document text
    • https://paleforekirito.weebly.com/uploads/1/3/4/5/134579508/wujivobobi.pdfIn PDF document text
    • https://fenogelojana.weebly.com/uploads/1/3/4/9/134904444/1703415.pdfIn PDF document text
    • http://giftcard-sale.store/book_of_sith_secrets_from_the_darksideg1zpr.pdfIn PDF document text
    • http://cosmosqrab.online/relatorio_de_auditoria_externaq0sf5.pdfIn PDF document text
    • https://cdn.sqhk.co/sabepakofo/1igL8gj/suradepopiraruwel.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/pipaneku/chemistry_equilibrium_problems_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/free_father_christmas_letter_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/vilofujuxofoxuwubasa.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_off0000d93e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD93E 5140 bytes
SHA-256: d299ce63b51425e22641a76150620ae30808c705be9c23193c976bb91b4e591d
font_01_sfnt_off0000ea95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA95 11320 bytes
SHA-256: e301969150e926a1e4dc92d3bb8afb42012ac02583129e7927f5d2507d1fbe31