Malicious PDF — malware analysis report

Static analysis result for SHA-256 63411dce3454ca82…

MALICIOUS

PDF

116.7 KB Created: 2022-04-07 01:46:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 62df93d40a9f89e0ea63289a9aa5e663 SHA-1: fbc6828982e8ae1ebaf3a9e6e9df04627decf0bf SHA-256: 63411dce3454ca8290a5a0801f536006021596e4421dc5f6b292228dab7e031d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://loheb.co.za/YmrXLWy8?keyword=11.1.3%20quiz%20introduction%20to%20trigonometry PDF link annotation
    • https://nhatthiengroup.com/files/uploaded/files/24734445225.pdfIn PDF document text
    • https://widawukilifuduz.weebly.com/uploads/1/3/5/3/135398171/3896613.pdfIn PDF document text
    • https://xikixunajaxata.weebly.com/uploads/1/3/5/9/135959014/05e7532c511.pdfIn PDF document text
    • https://javodezupaxut.weebly.com/uploads/1/3/1/3/131380273/9490008.pdfIn PDF document text
    • https://nutawazozi.weebly.com/uploads/1/3/4/6/134699679/jomepi.pdfIn PDF document text
    • https://jinezosibe.weebly.com/uploads/1/3/4/4/134454760/ccebe.pdfIn PDF document text
    • https://magozenidudib.weebly.com/uploads/1/3/4/7/134711122/ropefazage.pdfIn PDF document text
    • https://guzagotoxi.weebly.com/uploads/1/3/5/3/135313280/1931179.pdfIn PDF document text
    • https://gozajajemitala.weebly.com/uploads/1/3/4/3/134325553/6d3346b4.pdfIn PDF document text
    • https://nunonugo.weebly.com/uploads/1/3/4/3/134309936/4586627.pdfIn PDF document text
    • https://duxujemiw.weebly.com/uploads/1/3/4/7/134743688/3feea484ce1c.pdfIn PDF document text
    • https://wolunogejafijut.weebly.com/uploads/1/3/4/6/134649672/sutewureto_pumimefononezif_xalaresijadowov.pdfIn PDF document text
    • https://kujepilam.weebly.com/uploads/1/3/5/3/135343620/kalajuw.pdfIn PDF document text
    • https://kutenamig.weebly.com/uploads/1/3/0/7/130740069/gelaj.pdfIn PDF document text
    • http://www.extoskoko.co.jp/js/kcfinder/upload/files/sibafimajigero.pdfIn PDF document text
    • https://dalosetog.weebly.com/uploads/1/3/1/4/131412235/sapukelavop.pdfIn PDF document text
    • https://nusutena.weebly.com/uploads/1/3/0/7/130739474/3142862.pdfIn PDF document text
    • https://gesimuto.weebly.com/uploads/1/3/4/6/134685476/lapokunobalidiv_zivusuto.pdfIn PDF document text
    • http://cosmosartinteriors.com/kcfinder/upload/files/nibekejujibikukorazafe.pdfIn PDF document text
    • https://venifamu.weebly.com/uploads/1/3/4/5/134501621/dopiwelajebixidiz.pdfIn PDF document text
    • https://pamemigewoguvo.weebly.com/uploads/1/3/4/4/134438925/3284779.pdfIn PDF document text
    • https://duzozerijadid.weebly.com/uploads/1/3/4/4/134493401/sasuvomedewovugez.pdfIn PDF document text
    • https://pestresolution.pt/site/upload/file/50197552217.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 extracted file (font_00_sfnt_off0001631f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001631f.bin)

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001631f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1631F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00017b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17B31 18020 bytes
SHA-256: 8b2f6f932cff60ddce5c5f18dda9c8501aa24d9b74ec1b427c4533ea6c11dcba
font_02_sfnt_off0001aadc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AADC 10948 bytes
SHA-256: 64706d6d8d256591890f18a23e4b1c9ab884bfac63d09718b892e6ea179a22bc

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