Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b4b8da401d4528…

MALICIOUS

PDF

81.3 KB Created: 2022-04-05 07:14:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: a7a8a393edb0451c2854d4490448fbbe SHA-1: 70a046ffe7c5274858e0f746cffdbcf4b3d9ee97 SHA-256: 72b4b8da401d452855831dfa80c5b65fa6af31b584f33adc6e56e210999a40d0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://loheb.co.za/YmrXLWy8?keyword=dometic%20brisk%20air%202%20control%20panel PDF link annotation
    • https://topinsolventa.topham.ro/userfiles/file/rafoziwa.pdfIn PDF document text
    • https://tortugafilms.ca/adminfiles/file/mamamofusinizuromir.pdfIn PDF document text
    • https://xanikuxesovedew.weebly.com/uploads/1/3/4/2/134235486/4139452.pdfIn PDF document text
    • https://rmp-familienanzeigen.de/cms/files/82860196922.pdfIn PDF document text
    • http://web300k.com/upload/ck/files/97785450035.pdfIn PDF document text
    • https://noxititofobekux.weebly.com/uploads/1/4/1/3/141355496/4965578.pdfIn PDF document text
    • http://scsytech.com/upload/files/80519330106.pdfIn PDF document text
    • http://flyingkirin.com/uploadfiles/file/090945421198.pdfIn PDF document text
    • https://staging-info.sharkovinkom.com/sharkovinkom.com/ckfinder/userfiles/files/74156781238.pdfIn PDF document text
    • https://obermeyer-modemarkt.de/upload/file/bupixadufimo.pdfIn PDF document text
    • http://www.pataniforum.com/admin/jquery/ckfinder/userfiles/files/javen.pdfIn PDF document text
    • http://danielstrehlau.com/userfiles/file/zidesogiledisosa.pdfIn PDF document text
    • https://vimumigejanamim.weebly.com/uploads/1/3/4/6/134619591/066d966.pdfIn PDF document text
    • http://yokosohk.com/files/fckfiles/file/64803969235.pdfIn PDF document text
    • https://dolaodong.baohohoanglong.com/userfiles/file/kutozonixexisuwuf.pdfIn PDF document text
    • https://denimder.org/resimler/files/zexosewugujizaxovalu.pdfIn PDF document text
    • http://admin.accf-asean-china.com/assets/grocery_crud/texteditor/kcfinder/upload/images/files/70418729000.pdfIn PDF document text
    • https://ceiling.holcom.vn/webroot/img/files/6137392256.pdfIn PDF document text
    • https://falusawo.weebly.com/uploads/1/3/6/0/136084102/8345145.pdfIn PDF document text
    • https://monijakuxit.weebly.com/uploads/1/3/4/3/134362478/4358614.pdfIn PDF document text
    • http://yidaig.com/uploadfile/file/20220323234326.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE33 17548 bytes
SHA-256: 035ce86b6e4f6a47071b4030fa439aa97adfa3c25da31afeb2303a8ed0793f15
font_01_sfnt_off0000fc07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC07 1860 bytes
SHA-256: 562d39cc93351683f3420870a5578826c1285db13c691c08f99be18f4980e560
font_02_sfnt_off000104bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00011cd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CD4 10888 bytes
SHA-256: 93f1a3b007e4d536a51d954986a3784f46f13b5a06cf22d6bcd2e57c9228f23a

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