Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fa5a97acb6d8d0…

MALICIOUS

PDF

78.4 KB Created: 2022-05-18 11:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 866ff597451a1740a67e6146bb7f438d SHA-1: cd98181a27ff9981d345e0dc5ba7f2fb703649e7 SHA-256: a4fa5a97acb6d8d04b3845c14cc9d66cbf80f41bc814abbc518a7699737b397c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://mifuj.co.za/YmrXLWy8?keyword=statistics%20101%20cheat%20sheet%20pdf%20online%20test%20free PDF link annotation
    • http://avemkz.internet-match.com/upload/files/95962953153.pdfIn PDF document text
    • https://nigokozop.weebly.com/uploads/1/3/4/4/134436215/zokatategubulo_semilozogidutu_tojugafapo.pdfIn PDF document text
    • https://www.foodprocessingprojects.com/admin_assets/ckeditor/kcfinder/upload/files/pojirusadedawo.pdfIn PDF document text
    • http://mojuerp.com/uploads/ckeditor/files/20220428215246.pdfIn PDF document text
    • http://indianamartialartsfitness.com/flash/indianamartialartsfitness.com/file/mimowuzejejutujukelo.pdfIn PDF document text
    • https://coastalstudio.com/images/main/file/bezenamaretijarone.pdfIn PDF document text
    • https://kunipasufit.weebly.com/uploads/1/3/0/8/130874165/6b24c1.pdfIn PDF document text
    • https://cbrn.tj/nrsa_system/ckeditor/kcfinder/upload/files/14178326258.pdfIn PDF document text
    • http://sujitonweb.com/userfiles/files/3846709593.pdfIn PDF document text
    • https://pudavupotel.weebly.com/uploads/1/3/5/3/135335197/4647352.pdfIn PDF document text
    • http://residencecarlofelice.com/userfiles/files/90932490025.pdfIn PDF document text
    • https://wowuleribobele.weebly.com/uploads/1/4/1/4/141446891/rilokexegukam.pdfIn PDF document text
    • https://wujewogo.weebly.com/uploads/1/3/4/5/134586314/nuvirosuwumigiju.pdfIn PDF document text
    • http://khocabien.com/uploads/files/35497355513.pdfIn PDF document text
    • http://vers-ma.de/userfiles/file/36946859732.pdfIn PDF document text
    • https://panoramabyty.cz/content/rofonifo.pdfIn PDF document text
    • http://clingac.com/d/files/gogujurix.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/161fd11a150550---85128339788.pdfIn PDF document text
    • http://csim.jp/ckeditor/uploads/files/mekagukajaxalok.pdfIn PDF document text
    • https://digitaldaya.com/imagenes/file/vemesorarorubizomoxor.pdfIn PDF document text
    • http://foreverymuslim.net/home1/forevev3/public_html/foreverymuslim/upload/file/45381976447.pdfIn PDF document text
    • http://diar.pkauto.sk/images/_file/zovejamixomovedorokog.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1621aa38e909a6---tavorug.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_off0000ccec.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ccec.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCEC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e4fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FE 17128 bytes
SHA-256: 2374fe8825e26fe87c866a4ab5c3e38df4d55b4d1507cc65c09af7b75e48a4e2
font_02_sfnt_off00011243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11243 10964 bytes
SHA-256: 441fc4313e593d4a554337cdd46f18cfc4916a497f0f800037ee1efe728f6ef6