Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d66a0d2654d3c0…

MALICIOUS

PDF

78.7 KB Created: 2021-03-19 00:31:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: c2436f1aefb60aee1ed2d48d5e51d5f5 SHA-1: f8ba062f6fb9411a2c90b89f5c1c895bddf8aafe SHA-256: c5d66a0d2654d3c0efc1efe02fbdf1f5852c91570592fe81194ff43b02044c2e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://zajinet.ru/wix?keyword=assault+on+black+reach+captain PDF link annotation
    • http://xufededubumavif.scienceontheweb.net/best_printable_heat_transfer_vinyl_uk.pdfIn PDF document text
    • https://sisasava.weebly.com/uploads/1/3/0/7/130738988/5276013.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480182/normal_6027c07623b19.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380214/normal_604401322577e.pdfIn PDF document text
    • http://mesutilixuta.sportsontheweb.net/jebafiduzik.pdfIn PDF document text
    • https://cdn.sqhk.co/serodozire/G7Gigic/4747573852.pdfIn PDF document text
    • https://cdn.sqhk.co/poturofivat/Tcz9KJy/apple_iphone_11_pro_message_tone_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nugofonavuf/CjfNBTC/bifilimupusuf.pdfIn PDF document text
    • https://gatodewa.weebly.com/uploads/1/3/4/6/134627503/d7b4dfe3bf4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479439/normal_601fd1f16bb48.pdfIn PDF document text
    • https://zizudenavoxe.weebly.com/uploads/1/3/4/0/134017195/43b8b.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/bDfgeTq/lufosijozanofomofovaloxiv.pdfIn PDF document text
    • http://jusojixanona.getenjoyment.net/was_because_or_is_because.pdfIn PDF document text
    • https://cdn.sqhk.co/sogunixe/ieLiexN/duxitagizibezeremebowoza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443802/normal_5fe71934522d1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c5e26362-acc3-4c40-9db4-ce0cbd355080.filesusr.com/ugd/681527_1527dd748733452ebf27bf1d5ed182ed.pdf?index=trueIn PDF document text
    • https://d1897088-ef6e-4b60-8303-910b4b551fc1.filesusr.com/ugd/4cfbbd_595c9fb1827a41d28e782bc166e72af0.pdf?index=trueIn PDF document text
    • https://5c2cca0d-3a4e-48b0-93bf-8ac6c0c026cb.filesusr.com/ugd/271e65_6ca40d78097c4f6fa26d981f946983eb.pdf?index=trueIn PDF document text
    • http://retiziwo.myartsonline.com/rosipobuga.pdfIn PDF document text
    • https://0efdb04f-128a-4c0d-ace4-8b312723ebcc.filesusr.com/ugd/5508f4_2a3059417809476587326c795568b393.pdf?index=trueIn PDF document text
    • https://bcd7deca-fd5d-492b-a220-d373ca515bc9.filesusr.com/ugd/12f4eb_15176e0960e44ee2922676917b58105e.pdf?index=trueIn PDF document text
    • http://povodakav.myartsonline.com/9225011314.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_off0000f79e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF79E 5212 bytes
SHA-256: a235eb189d147c392b6b53340dd5e9a059c0f8542c57a3a55592a6f4234e7bdc
font_01_sfnt_off00010951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10951 10716 bytes
SHA-256: dcc1dc6d4c146b6da584b35d765ce6e072a50f6667bb517d03141e7510d6f088

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