Malicious PDF — malware analysis report

Static analysis result for SHA-256 19123863330670ad…

MALICIOUS

PDF

108.8 KB Created: 2022-04-14 13:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: c1c38513de4544fb1b02c8b2fcfcd0fa SHA-1: 56ea662d2737ad56d4504b859623959bfc2aecfd SHA-256: 19123863330670adfb3f00139847a5e9394f2033c25b46f29660ccc3110595ea
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://sunuf.co.za/YmrXLWy8?keyword=what%20is%20the%20theory%20of%20self PDF link annotation
    • http://pustelnik-budownictwo.pl/ckfinder/userfiles/files/37780374154.pdfIn PDF document text
    • http://quetthe.com/upload/files/73657668434.pdfIn PDF document text
    • https://dumopodowejuna.weebly.com/uploads/1/3/4/5/134591879/6643773.pdfIn PDF document text
    • https://gujodoludota.weebly.com/uploads/1/3/2/6/132681740/ditafugatoroxaviniwi.pdfIn PDF document text
    • https://gebawifu.weebly.com/uploads/1/3/1/4/131483167/5938533.pdfIn PDF document text
    • https://jobexukutet.weebly.com/uploads/1/3/1/4/131452991/aa9441d32b904.pdfIn PDF document text
    • https://sokimazivad.weebly.com/uploads/1/3/4/6/134620474/5516482.pdfIn PDF document text
    • https://xidelora.weebly.com/uploads/1/3/5/2/135296398/dojize.pdfIn PDF document text
    • https://rudabukonavapuk.weebly.com/uploads/1/3/4/0/134016662/438069.pdfIn PDF document text
    • https://vabijerokajesi.weebly.com/uploads/1/3/4/5/134595953/fuvosixedowimur.pdfIn PDF document text
    • https://paxuxitusokewu.weebly.com/uploads/1/3/1/3/131380341/kidefetubelof.pdfIn PDF document text
    • https://nigakanal.weebly.com/uploads/1/3/4/5/134527226/papesotuteje-vezijetavameda-visagiv-zonokubefefixu.pdfIn PDF document text
    • https://sudejija.weebly.com/uploads/1/3/5/3/135390998/pikofud.pdfIn PDF document text
    • https://ruwizugaxuluba.weebly.com/uploads/1/3/4/7/134759804/7f9b0f6fa06537b.pdfIn PDF document text
    • https://karesaxu.weebly.com/uploads/1/3/5/3/135392924/6972098.pdfIn PDF document text
    • http://karimeh.com/public/userfiles/file/58447321484.pdfIn PDF document text
    • http://slmj8.com/data/userfiles/files/xokelizadupewejumun.pdfIn PDF document text
    • https://robesiladobaluj.weebly.com/uploads/1/3/0/8/130813577/zanumasijuxoguj.pdfIn PDF document text
    • https://rivirabuxi.weebly.com/uploads/1/3/4/6/134699302/5235859.pdfIn PDF document text
    • http://maurovalleferroarchitetto.eu/userfiles/files/52393533840.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000144e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144E7 10316 bytes
SHA-256: 66fbeff25c7eb72a710f775806c4935a517e87f692e9dc5ef8d90199f58b223b
font_01_sfnt_off00015c5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C5A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001746c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1746C 18468 bytes
SHA-256: 42aa7153d10a4c1900324f5595c7def05a4b35ab98f55ecbbfd999503453545b

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