Malicious PDF — malware analysis report

Static analysis result for SHA-256 634f3cc4abc5ee15…

MALICIOUS

PDF

154.4 KB Created: 2022-03-16 02:02:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: 6cec74e16a3307339111715f015ea134 SHA-1: 9f6e1326afbd66b120e4e1c871f21a6734fb6512 SHA-256: 634f3cc4abc5ee15385f631c55ea22828ba7584f0dd9e9ba9790fcb0fd740a2a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9357

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://fecuq.co.za/XSRYdR1H?utm_term=appsc+polytechnic+lecturers+notification+2019+pdf PDF link annotation
    • https://mimpidia.com/contents/files/dejugixiwatevalibagedava.pdfIn PDF document text
    • https://nmcs.ca/userfiles/files/42884498788.pdfIn PDF document text
    • http://diakmelo.hu/ckfinder/userfiles/files/rovidigexew.pdfIn PDF document text
    • http://hungbuloon.com/media/ftp/file/vixujujeda.pdfIn PDF document text
    • http://fuguchair.com/upfolder/e/files/20220225143735.pdfIn PDF document text
    • http://pnalog.ru/images/file/jelijisotozarazulova.pdfIn PDF document text
    • http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/97915118485.pdfIn PDF document text
    • http://tatooazh.ru/files/files/58131975440.pdfIn PDF document text
    • http://placidlakes.com/larpm/uploads/file/98348455977.pdfIn PDF document text
    • http://pallenberg-busreisen.de/uploads/files/wujusolole.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/xolemezirodud.pdfIn PDF document text
    • https://alwillislifecenter.org/ckfinder/userfiles/files/85556481031.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16229a2814a8f4---kamelaxobagejetivagin.pdfIn PDF document text
    • http://ghanzi.net/kcfinder/upload/files/nulatajemured.pdfIn PDF document text
    • http://skrutit-probeg.ru/upload_picture/file/9188672321.pdfIn PDF document text
    • http://www.snhram.ru/kcfinder/upload/files/rubawerepedulozosuguveros.pdfIn PDF document text
    • http://giaydantuongphongkhach.net/images/news/file/72728136871.pdfIn PDF document text
    • http://bio-scan.com/userfiles/file/setisozelexowod.pdfIn PDF document text
    • http://xn----htbccnijgu6o.xn--p1ai/kcfinder/upload/files/borixetapekeret.pdfIn PDF document text
    • http://www.julietlandau.com/fckeditor/userfiles/file/63338386922.pdfIn PDF document text
    • https://rozetki.su/kcfinder/upload/files/rosurelemu.pdfIn PDF document text
    • https://karolinanowak.com/userfiles/file/kadomakajati.pdfIn PDF document text
    • http://seritour.com/rsm/files/21654092680.pdfIn PDF document text
    • https://sd-olimp.hr/files/tolixo.pdfIn PDF document text
    • http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/38616014605.pdfIn PDF document text
    • https://guijek.com/userfiles/file/34854402538.pdfIn PDF document text
    • https://theipbuzz.com/images/file/52910321849.pdfIn PDF document text
    • http://www.colfacor.org.ar/administrador_web/kcfinder/upload/files/segimurajotag.pdfIn PDF document text
    • http://firegallery.ru/img/upload/nokofiduvasiluguzagetopog.pdfIn PDF document text
    • http://holflorstudio1.cz/upload/files/tavubovifukekam.pdfIn PDF document text
    • http://shinex-auto.com/userfiles/file/pafipunenuxamemet.pdfIn PDF document text
    • https://balatonpremiumvillas.hu/webroot/upload/files/bazepozusisupenibe.pdfIn PDF document text
    • http://www.niceresidence.net/image/upload/File/digobarowasebix.pdfIn PDF document text
    • http://chanhbon.vn/media/ftp/file/68492739041.pdfIn PDF document text
    • https://kientrucqhouse.com/uploads/image/files/xulotowevu.pdfIn PDF document text
    • http://lasantitosrestaurant.com/userfiles/file/rutujubowixipom.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/6fcdbd66705969049ffbd6b402db5b0f/gawepuwilesiwowifexud.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_off0001f20a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001f20a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001f20a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F20A 11372 bytes
SHA-256: 36b68283199779d6dd6b4733340dc794c9b9d220fb4d3fce76b1163c282e2929
font_01_sfnt_off00020cea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20CEA 20476 bytes
SHA-256: d228c7682b253e60523a68a0091725b10155027c56136bf431336513435f5989
font_02_sfnt_off000242cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x242CF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9