Malicious PDF — malware analysis report

Static analysis result for SHA-256 07b8687d6fba00f3…

MALICIOUS

PDF

66.6 KB Created: 2021-03-01 06:55:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: bed9182f649d89e70363aa1a9a8ff5ef SHA-1: a6b42d7a0e63c41ae18074ddd873ea1b2ba3fb39 SHA-256: 07b8687d6fba00f3645f876aa8ad06c8fd624e73ed2e7982b24b23f3af567e22
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://gimoguvi.ru/wix?keyword=glencoe+algebra+2+chapter+1+review+answers PDF link annotation
    • http://xolokukifimiv.sportsontheweb.net/89679972290.pdfIn PDF document text
    • https://joposiga.weebly.com/uploads/1/3/5/3/135399072/b8d63f3186f00.pdfIn PDF document text
    • http://dalkomis.website/carbon_dioxide_co2_has_what_type_of_intermolecular_forceswhykf.pdfIn PDF document text
    • https://nejavedejelije.weebly.com/uploads/1/3/4/3/134336697/a097e0.pdfIn PDF document text
    • http://sberbank.services/holt_physical_science_book_answer_keqlg5o.pdfIn PDF document text
    • https://rumitubo.weebly.com/uploads/1/3/4/5/134525427/9202083.pdfIn PDF document text
    • http://comp-arenda.site/utorrent_pro_cracked_apk_onhaxw1mni.pdfIn PDF document text
    • http://douchehq.xyz/diono_radian_3rxt_all-in-one_convertible_car_seat_installation754o4.pdfIn PDF document text
    • https://butavuzi.weebly.com/uploads/1/3/2/6/132682386/cf7ee647.pdfIn PDF document text
    • http://baltika-trans.ru/play_store_free_fire2hbd0.pdfIn PDF document text
    • https://cdn.sqhk.co/neviragar/UDAhgWX/texas_longhorns_basketball_roster.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/why_is_my_dishwasher_not_fully_draining.pdfIn PDF document text
    • https://tusozokusex.weebly.com/uploads/1/3/4/6/134678333/cb5f24754e2da.pdfIn PDF document text
    • https://rupevegix.weebly.com/uploads/1/3/4/8/134887155/a0d54b.pdfIn PDF document text
    • https://rijifupipi.weebly.com/uploads/1/3/1/4/131453414/sawokupelanigabizuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pikaderobiw.atwebpages.com/how_to_find_lattice_energy_of_a_ionic_compound.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_off0000c956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC956 5700 bytes
SHA-256: bcb1ea665f36662b4fc48c6baac0f93171045958dac4d44b0fa9cdab4ef66da8
font_01_sfnt_off0000dcda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDA 9644 bytes
SHA-256: ace8fe5fdcbe2c05b8b9ac5ce53131f7912ca600af979709a5115dcf6b7a60e5