Malicious PDF — malware analysis report

Static analysis result for SHA-256 1918800f4e9f6b3b…

MALICIOUS

PDF

67.8 KB Created: 2022-02-02 21:16:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 8a30473186bdcdc7735cde876ac7b0fa SHA-1: 81b2cec384592c81e314cc21dc2a436524332aa5 SHA-256: 1918800f4e9f6b3b5a58618c8e277d583ed942ea304a33d3b9228705a8a79856
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://lazav.co.za/XSRYdR1H?utm_term=bcg+ka+full+form+batao PDF link annotation
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619500f0c5ef6---nikojidudiwefilepabawexo.pdfIn PDF document text
    • https://netkat.in/ckfinder/userfiles/files/42081953781.pdfIn PDF document text
    • http://derivat.sk/files/74133081466.pdfIn PDF document text
    • https://mobisteelegypt.net/userfiles/file/45616089060.pdfIn PDF document text
    • https://sentinels.ro/userfiles/file/34831131815.pdfIn PDF document text
    • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/161a2001d8f065---88987211648.pdfIn PDF document text
    • https://infiniteprospects.com/FCKeditor/file/90423059717.pdfIn PDF document text
    • https://floraplant.gr/FCKeditor/userimages/file/gasalek.pdfIn PDF document text
    • http://dreambeauty.kr/upload/fckeditor/file/74609411242.pdfIn PDF document text
    • http://gbfrjournal.org/pds/userfiles/files/38031944959.pdfIn PDF document text
    • http://inphuduong.vn/upload/files/9507266090.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16158dc26c6485---29698101653.pdfIn PDF document text
    • http://szigmetal.hu/editor_up/17145302373.pdfIn PDF document text
    • http://gryfarmerskie.pl/pliki_wyswig/files/79116188315.pdfIn PDF document text
    • http://360global.ca/userfiles/file/lixoduponuso.pdfIn PDF document text
    • https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/430143023.pdfIn PDF document text
    • http://xn--80aaaaadfwa5aftjhxrkcrg8iwc.xn--p1ai/pict/file/gebomudiwavumesenoxe.pdfIn PDF document text
    • http://ihdbd.org/upload/files/79533653003.pdfIn PDF document text
    • http://bckbytow.naszbip.pl/img/upload/files/2423776254.pdfIn PDF document text
    • http://mutamobilya.com/images_upload/files/nikofazuritofamuzuf.pdfIn PDF document text
    • http://namuna.edu.np/assets/kcfinder/upload/files/85423121889.pdfIn PDF document text
    • https://alzubidi.com/userfiles/files/geravagobod.pdfIn PDF document text
    • https://www.cartorioleandrofelix.com.br/kcfinder/upload/files/4188380828.pdfIn PDF document text
    • http://liceoadultos.juniorcollege.cl/userfiles/files/79145404053.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/f8e99daeb4925e2ceb5926a30cee2b4c/matekuverutonimimi.pdfIn PDF document text
    • http://barudan.hk/UploadFile/file/20211009105913327.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_off0000a6b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6B1 10568 bytes
SHA-256: 0bb3fde17b536438cb79fd4df62a65aec9b358d6e86fc9a3e008a35bd6291ff4
font_01_sfnt_off0000befa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEFA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0000d615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD615 15956 bytes
SHA-256: 272b007826e1b26070f682582ac2907426f555f9ada2d475ec615315f1bdb672