Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f191a017a36799f…

MALICIOUS

PDF

83.7 KB Created: 2021-03-19 09:52:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-07
MD5: 30d91429fe353761444447450fc5d054 SHA-1: 81982ea272b66f66e9f7b266a4c5d235c3fe630c SHA-256: 4f191a017a36799fc1613c6c8064b973337df7ec930842b7dd28f379db489813
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://jumiwimov.ru/strik?utm_term=how+to+use+past+and+present+tense PDF link annotation
    • https://cdn.sqhk.co/faruzikako/LByjc6G/zaxedixuluganasalu.pdfIn PDF document text
    • http://doworevo.22web.org/introduction_to_seismic_interpretation.pdfIn PDF document text
    • https://cdn.sqhk.co/rugofufol/hNScLgc/75851490748.pdfIn PDF document text
    • https://cdn.sqhk.co/tinawegu/jeib6gi/download_game_pyramid_solitaire_saga.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
    • https://uploads.strikinglycdn.com/files/e2986c90-a6e9-422e-a726-31248d294caf/61783021155.pdfIn PDF document text
    • http://widusop.atwebpages.com/10498166438.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/rejimoxebudimijive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a79d019e-06ff-4d3b-876a-b40f4211a257/45907097624.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/paduxomanitotabineziw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ace38a4e-37a8-4ec3-a94a-75b63103422d/lugudavumub.pdfIn PDF document text
    • http://wulibazosuxib.onlinewebshop.net/self_isolation_before_surgery_spire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e69af37-2f05-4754-bee7-e81d9e0cb3fa/dracula_di_bram_stoker_quotes.pdfIn PDF document text
    • http://japotegalavig.epizy.com/71028812444.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e3a98bd-34aa-40bf-8b51-cb7cb5c64126/books_to_read_if_you_like_michael_vey.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/tusibetawojo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdd24aca-aedf-44c0-b8aa-45d4474aba49/tuboba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c1df884-e6e5-4f79-a16a-ee20d4e23b2a/legally_blonde_monologue_audition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f411573-4695-4eaf-8589-3706c93928ad/how_to_use_samsung_dishwasher_video.pdfIn PDF document text
    • http://nasujaguza.epizy.com/mpsc_answer_key_rajyaseva_24_march_2019.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_off0000fcac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCAC 4808 bytes
SHA-256: 5e7fc8530d64bd43f6d489f5f197db7dd2b865fad778db67fc34ef11ab451231
font_01_sfnt_off00010d15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D15 11136 bytes
SHA-256: 52d61b5419d3d8dfc848b344d6e46d880bb30e0f07ba7fae9848f6ff3d22f5fb
font_02_sfnt_off000132f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132F2 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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