Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d8a4fee986824c…

MALICIOUS

PDF

72.5 KB Created: 2022-04-09 16:08:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: eddd5fee75000275fd7804f7ccddabb9 SHA-1: 1f0fcc3621315e606886c4c7149fa6ca4170a2a6 SHA-256: c7d8a4fee986824c4220115e12edbdeadc5469f2216636e12281e945f4affc14
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9909

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://yubit.co.za/YmrXLWy8?keyword=how%20to%20use%20vicks%20warm%20steam%20vaporizer%20v188 PDF link annotation
    • https://joxufomuvonabu.weebly.com/uploads/1/3/4/4/134474754/77dca34.pdfIn PDF document text
    • https://xomiwisaxi.weebly.com/uploads/1/3/3/9/133999446/fidewisoka_xokinowobiz_letowenaril.pdfIn PDF document text
    • https://betagoguf.weebly.com/uploads/1/3/4/6/134668965/dujaxe.pdfIn PDF document text
    • https://gagasanriau.com/a450d92cb6be01b3b3669c18bfca7901/kcfinder/upload/files/rafozogibelurosori.pdfIn PDF document text
    • http://oppedisanorobertosrl.com/userfiles/files/zibepefugizefesude.pdfIn PDF document text
    • http://fcms.nl/KCFinder/upload/files/77269059781.pdfIn PDF document text
    • https://rudusixan.weebly.com/uploads/1/3/0/7/130775573/lobewulikakodu-dajozixibo.pdfIn PDF document text
    • https://amc-lda.com/assets/kcfinder/upload/files/63278514478.pdfIn PDF document text
    • http://skontrolsengineering.com/file_media/file_image/file/vedavuna.pdfIn PDF document text
    • https://www.miroku-mfg.co.jp/system/js/kcfinder/upload/files/watuvenigiwamugoded.pdfIn PDF document text
    • https://giwedogifuj.weebly.com/uploads/1/3/4/7/134741463/nitipupofelezox-kukusaropet-xonel-xoditu.pdfIn PDF document text
    • https://wowobomufib.weebly.com/uploads/1/3/0/8/130874304/3849123.pdfIn PDF document text
    • http://bsa.by/ckfinder/userfiles/files/66208514202.pdfIn PDF document text
    • https://anep.it/ckeditor/kcfinder/upload/files/wuturisavesijexi.pdfIn PDF document text
    • http://vectorma.ru/uploads/assets/file/48689212344.pdfIn PDF document text
    • https://smartbrand.ro/mm/file/lopije.pdfIn PDF document text
    • https://dewebunofimob.weebly.com/uploads/1/3/3/9/133986907/965a83f0efb.pdfIn PDF document text
    • http://cukiernia.eu/upload/files/bofifugavolu.pdfIn PDF document text
    • https://chilegastronomia.cl/uploads/userfiles/files/soratofab.pdfIn PDF document text
    • https://motazejiwe.weebly.com/uploads/1/3/4/2/134266269/mevax.pdfIn PDF document text
    • http://yugreat.com/filespath/files/20220303015434.pdfIn PDF document text
    • http://omeofest.eu/userfiles/files/woranixowavebimipusoxuj.pdfIn PDF document text
    • https://dubebonu.weebly.com/uploads/1/3/0/8/130874554/8751229.pdfIn PDF document text
    • http://lindendirect.com/tempimg/file/54861383079.pdfIn PDF document text
    • http://uveteknik.com/uploads/files/wegakubedakikoranubevavan.pdfIn PDF document text
    • https://rovinimowi.weebly.com/uploads/1/3/4/6/134682499/nevat_dimidika.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_off0000b48d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b48d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b48d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB48D 17476 bytes
SHA-256: b25b3e853accafd8324b0ed8e0a516ed810ac093adce11f0ab719d436928deae
font_01_sfnt_off0000e201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE201 11040 bytes
SHA-256: cc62b4e4f54aac7ce0bc5fa497761880a4c09054477d529b4578260fc1f2b1a4
font_02_sfnt_off0000fbea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBEA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1