Malicious PDF — malware analysis report

Static analysis result for SHA-256 793d57fac0954d7a…

MALICIOUS

PDF

87.0 KB Created: 2021-10-30 13:16:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: cbb4fd6efc19c361c778ef6b85ced9b4 SHA-1: e2250cfd9efa311930eee6729c121a3a0cc15dd7 SHA-256: 793d57fac0954d7a15632e80a87fd244eda1a836b25e05ed134de595d4cd405d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://coretry.ru/uplcv?utm_term=read+and+understand+2+pdf PDF link annotation
    • http://anhbanglaw.com/userfiles/file/pakalegexetixexagur.pdfIn PDF document text
    • http://daydeothe.vn/rich_editor/file/ziwap.pdfIn PDF document text
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161566992a0967---novukaminadujorodaroge.pdfIn PDF document text
    • https://safrano.pl/userfiles/file/53318697616.pdfIn PDF document text
    • http://mikomisushi.com/uploads/files/28597092909.pdfIn PDF document text
    • http://multi-accueil.fr/ressource/site-image/files/tojeluletulapifujok.pdfIn PDF document text
    • http://writtenmail.com/upload_images/file/74157638868.pdfIn PDF document text
    • https://eastoncn.housemember.com/uploads/files/66078078228.pdfIn PDF document text
    • https://educhina.mn/editor/files/8540242504.pdfIn PDF document text
    • https://appchecar.com/ckfinder/userfiles/files/fazekuganokujubepujil.pdfIn PDF document text
    • https://thietkewebseo.com/webroot/img/files/69973877175.pdfIn PDF document text
    • http://standartbio.com/fckfiles/file/93068368351.pdfIn PDF document text
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/17b320c7994c7e0717ace3f7d7e03330/fusenizon.pdfIn PDF document text
    • http://macierz-grodziec.org/files/file/bedimedesipowaw.pdfIn PDF document text
    • http://amandamaitland.com/images/file/zavefilasawisededux.pdfIn PDF document text
    • https://tmtteks.com/files/wugulajusivetuki.pdfIn PDF document text
    • http://otworz-biuro-podrozy.pl/userfiles/file/nubepivobolozefo.pdfIn PDF document text
    • http://diskacme.dk/images/upload/file/65658203192.pdfIn PDF document text
    • http://elvirajogsi.hu/ckfinder/userfiles/files/83071245674.pdfIn PDF document text
    • http://dansensvenner.dk/imagesfile///34731232158.pdfIn PDF document text
    • http://snp-ent.com/files/fckeditor/file/69222852661733cb686025.pdfIn PDF document text
    • http://turnwealthy.com/ckfinder/userfiles/files/55298923559.pdfIn PDF document text
    • http://www.truca-taoules.com/ckfinder/userfiles/files/51661894140.pdfIn PDF document text
    • http://ventima.ru/userfiles/file/64487886246.pdfIn PDF document text
    • http://labotinnghia.com/img/files/2353270027.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_off0000f02c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02C 10500 bytes
SHA-256: ccbea47eefdb1daf4de00be6a097845838cfafc1b8078239f8cfed7d08e2fccb
font_01_sfnt_off00010838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10838 17852 bytes
SHA-256: 5fc560c5958fa11440ffb214b8d82ae8b3b9238beabea1b74acd742ccab352a1
font_02_sfnt_off000136af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136AF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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