Malicious PDF — malware analysis report

Static analysis result for SHA-256 d693b7043b32e441…

MALICIOUS

PDF

68.5 KB Created: 2021-03-07 09:48:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 687d5615b00aa299738ce1c769bc8396 SHA-1: d442e3a7c15331dd7372fd0a235e4e5333775079 SHA-256: d693b7043b32e441b6e1b326cdfd92e66f0333b11b503629104c9b4e6e6ca225
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/award?keyword=technics+turntable+sl-d2+cartridge PDF link annotation
    • https://zesajuletolif.weebly.com/uploads/1/3/0/9/130969916/bokogufopupuponimega.pdfIn PDF document text
    • https://tinonerapize.weebly.com/uploads/1/3/5/3/135349756/d0e10.pdfIn PDF document text
    • http://reduslim-sito.site/soligufena1tl5l.pdfIn PDF document text
    • https://kigolakelo.weebly.com/uploads/1/3/1/3/131380934/4f3d9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374847/normal_5ff8f2278117f.pdfIn PDF document text
    • http://itash.space/bcps_study_guidecg62w.pdfIn PDF document text
    • http://xezupotivevilib.22web.org/how_to_update_android_box_2019.pdfIn PDF document text
    • https://zapubotugor.weebly.com/uploads/1/3/4/6/134635013/b25b20bd9094133.pdfIn PDF document text
    • http://douchehq.xyz/44469998544ppnhi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459058/normal_5fcd9d23054a7.pdfIn PDF document text
    • http://znalomstvavip.site/dusiwugofl1aj1.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/f369fa50-f7c8-4e11-aec8-273aea80a3b8/wuzokiwowisewelusuzu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c28401f1-65eb-4418-ba8c-4b29559a2386/papozedunefi.pdfIn PDF document text
    • http://xabibagozof.rf.gd/what_is_a_court_marriage_in_india.pdfIn PDF document text
    • http://jeliponotetivek.epizy.com/how_to_change_the_filter_on_a_bosch_washing_machine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ee2aa1e-0d1f-4ba1-a35c-3a70b5dd2235/naked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84978ece-2bd4-4b6a-99ba-d493d0f34ec6/what_colors_compliment_blue_green.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e7c4e47-9ca7-43bb-8a80-85b4dc6fdab7/66546338870.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4aa24a3-c4fa-44c4-a6ee-5dbba6698d1c/79798123628.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_off0000ceab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEAB 5452 bytes
SHA-256: d03e5413e0ab8ea16242dd7e1d814a8ff89941d813e6d0b8b376259bdc66acf0
font_01_sfnt_off0000e130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE130 10480 bytes
SHA-256: 330373eaf573b5cc6c5b4f99e0474df6981bd8c0b785a179cd41eb670f4af91f

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