Malicious PDF — malware analysis report

Static analysis result for SHA-256 c64f98aeb0bb2548…

MALICIOUS

PDF

65.4 KB Created: 2021-02-19 07:43:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 968d3c1781bffaa194f0779bc07c8784 SHA-1: a1e2295d82a903dccad011af651a0ad88df8948d SHA-256: c64f98aeb0bb2548539c56eb01c93b21766d603fba0ffd8412c53d401a7a1486
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://baarspo.ru/wix?keyword=mityvac+7201+parts PDF link annotation
    • http://phrensy.co/the_australian_50_cent_coin_has_the_shape_of_a_regular_dodecagonqh6by.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479679/normal_600f240053a24.pdfIn PDF document text
    • http://jokebixa.22web.org/passport_renewal_form_south_africa.pdfIn PDF document text
    • http://stylecurtains.com/tosedudegesimo3iqeu.pdfIn PDF document text
    • http://bigowet.xyz/maruvejonutiluwefizuxune9u459.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444869/normal_602174aa84e3d.pdfIn PDF document text
    • https://cdn.sqhk.co/dafisuwikib/uHhh3ij/79217600771.pdfIn PDF document text
    • http://virona.org/182037134957cbry.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446382/normal_5fe546c18d4f0.pdfIn PDF document text
    • http://winwites.space/91827962234l05c3.pdfIn PDF document text
    • http://wagagawoduzom.iblogger.org/tuwixetebepimewejawite.pdfIn PDF document text
    • https://cdn.sqhk.co/nesorosuxim/1moghBr/cloth_face_masks_near_me_in_stock.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384482/normal_600e47a41d8a9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460055/normal_6002def32f5b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387232/normal_5fdd8a6019387.pdfIn PDF document text
    • https://cdn.sqhk.co/rolileduvof/oijiFja/sesetiwelutejituvozu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://xesewopalokix.epizy.com/kelokosilozarigutas.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6E8 4924 bytes
SHA-256: f3d6f17f93e4818044182ea3a0c2e840681fc2eb56556933669cc6c24710475b
font_01_sfnt_off0000c7c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C2 10152 bytes
SHA-256: e0143ec9245f4895431f2acc531f7d9e4b42e294d8eafdd38d0ffb721fc1f46e
font_02_sfnt_off0000ea8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e