Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fe008f5a3f5fb98…

MALICIOUS

PDF

77.2 KB Created: 2021-03-10 03:33:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 10cea0add721ab54e8e804cc4493b492 SHA-1: 0b03720fe4fd80197cb56df29afc51206f7a731b SHA-256: 1fe008f5a3f5fb98bbad193ac54cfcace6f2dd2897e2b6210b8e0175017e2111
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://fokemale.ru/award?keyword=human+body+and+functions+pdf PDF link annotation
    • http://sujabupinoda.scienceontheweb.net/setoribeme.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490929/normal_60261e3701ff2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426558/normal_5fd2726881670.pdfIn PDF document text
    • http://zexaribamemavi.sportsontheweb.net/43934219924.pdfIn PDF document text
    • http://peromopativej.mypressonline.com/42329347266.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376609/normal_602561681a4c1.pdfIn PDF document text
    • http://uanews.website/pirakupalepebunajujotu6ewls.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420747/normal_5fd793816d4ac.pdfIn PDF document text
    • http://rinujajija.getenjoyment.net/tujugovejotowofixamigoj.pdfIn PDF document text
    • http://bobixina.getenjoyment.net/how_to_download_itunes_on_ipod_nano.pdfIn PDF document text
    • http://pushbiz.fun/ledopaso1524u.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9797f8d-e36a-4ff3-a9b8-c29c9b2f273c/wizomaxovodolesajejedu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85db475d-9f6c-42e3-810d-571f72b1afd6/how_long_is_harry_potter_1_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/055c3a6e-7f78-4856-937c-053c029b2762/mixujenesewudan.pdfIn PDF document text
    • http://nixomirorubu.myartsonline.com/keys_for_writers_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb799369-dd30-4879-9127-4ed9ec336718/new_york_stock_exchange_today_closing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df5df339-4305-4e33-8ad0-a753808defda/82804828771.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f00ec00f-f334-47a4-8328-8fbf227f502f/como_saber_se_devo_terminar_o_casamento.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_off0000f1c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C8 5376 bytes
SHA-256: 86a29d59515cf9042b6f8743abe300e8ce088647552082c6de9672973ff4c8f1
font_01_sfnt_off00010405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10405 10472 bytes
SHA-256: 5c44721137e1340c06d94a16c0951621c4d36e380119978c4b7d1b4694cc780f