Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd21df3a60978b4…

MALICIOUS

PDF

75.5 KB Created: 2022-04-12 15:42:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25
MD5: bfae3d064b51d3c826d84de7464dea2e SHA-1: e81a3f13fa6685d196cef066a21b62ed63fde923 SHA-256: 3dd21df3a60978b4e02c16336a71cf0ddb5f8e5c4b8d5abf21ca28436a7c71fe
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

Heuristics 6

  • 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 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://yoyep.co.za/YmrXLWy8?keyword=%C2%BFqu%C3%A9%20hacer%20para%20aliviar%20el%20dolor%20de%20cervicales PDF link annotation
    • https://sokowerifali.weebly.com/uploads/1/3/6/0/136053586/8485006.pdfIn PDF document text
    • http://nellion.ru/upload/files/potafenunaxunotugomowi.pdfIn PDF document text
    • http://xn--9d0bk1sn6gncq95flql.com/user_data/kcfinder/files/pezerimawego.pdfIn PDF document text
    • http://energy-partner.pl/kcfinder/upload/files/xikedog.pdfIn PDF document text
    • http://lesybb.sk/userfiles/file/kuziporoz.pdfIn PDF document text
    • https://zubirutis.weebly.com/uploads/1/3/4/6/134640120/9dbf19ad004.pdfIn PDF document text
    • https://natorepoxikafop.weebly.com/uploads/1/3/4/3/134314237/5f1044e8abf.pdfIn PDF document text
    • http://brandorbit.in/userfiles/file/melewolewabes.pdfIn PDF document text
    • https://xn----7sbbzeackusl5afk8czi.com/admin/kcfinder/upload/files/27027981385.pdfIn PDF document text
    • http://aven.su/userfiles/file/pajavusakanasisobuwu.pdfIn PDF document text
    • https://ferosikapomizud.weebly.com/uploads/1/3/4/5/134526037/7535721.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1621fe7b5f1df1---32731533809.pdfIn PDF document text
    • https://butoxuxesadi.weebly.com/uploads/1/3/4/6/134699311/4760194.pdfIn PDF document text
    • https://greenbins.ca/ckfinder/userfiles/files/jitevutuwekab.pdfIn PDF document text
    • http://kiuanai.com/userfiles/file/fakodufaforu.pdfIn PDF document text
    • https://widijozitumude.weebly.com/uploads/1/3/4/6/134688085/2842615.pdfIn PDF document text
    • https://kotak12.com/contents/files/17754742579.pdfIn PDF document text
    • https://podurawojixazel.weebly.com/uploads/1/3/5/3/135310447/dea76a9c06.pdfIn PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620a1a5d38790---60035721287.pdfIn PDF document text
    • https://lolovegadagofi.weebly.com/uploads/1/3/1/6/131636941/9249537.pdfIn PDF document text
    • https://kivoranove.weebly.com/uploads/1/3/4/6/134679810/4161696.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16240cd8773c11---3017116192.pdfIn PDF document text
    • https://disanelazutiwi.weebly.com/uploads/1/3/4/3/134361230/nozofamise_pijerijokox_vesixilageja_jivalodo.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_off0000c12b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC12B 16996 bytes
SHA-256: 71ff2e7be9cb42c15912e2d8ecd5393aea62debd84853e7047fa81f48f8dd172
font_01_sfnt_off0000ed0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED0E 10928 bytes
SHA-256: d5c6f83d553463b88c056da2682aef5d6a0b294c0a0dabac830ed76b9d1b739a
font_02_sfnt_off000105f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105F2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1