Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d37bcdf4da0e6f1…

MALICIOUS

PDF

80.6 KB Created: 2022-04-15 03:04:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: e38acb6c8acd747d5322c83179accd02 SHA-1: cd303b2537ffb78e946dfa8e5591c23d1caf2158 SHA-256: 5d37bcdf4da0e6f1172a33035c9b8b3350f5d80bc9530df7342c9d48092b67cf
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://ladubikoniku.weebly.com/uploads/1/3/0/9/130969526/mowegefofufuxef_larinezuvuwa_kuwojego.pdf In PDF document text
    • https://narezivif.weebly.com/uploads/1/3/5/3/135307162/87b2fb8873bc.pdfIn PDF document text
    • https://negofugino.weebly.com/uploads/1/3/4/5/134529575/musugujolene_litizipigesi_tujajasoja.pdfIn PDF document text
    • https://newpressproduction.com/ckfinder/userfiles/files/63646233176.pdfIn PDF document text
    • https://jiwejezagaxu.weebly.com/uploads/1/3/5/3/135325467/xinojigigibono.pdfIn PDF document text
    • https://towalexurunodu.weebly.com/uploads/1/3/4/2/134266150/ruzuwejej.pdfIn PDF document text
    • https://neruzubegakakew.weebly.com/uploads/1/3/4/0/134017499/4719912.pdfIn PDF document text
    • https://vilejote.weebly.com/uploads/1/3/4/6/134629871/wovelusuzanij.pdfIn PDF document text
    • https://hidropomp2008.com/uploads/userfiles/file/bavagow.pdfIn PDF document text
    • https://zamexemodu.weebly.com/uploads/1/4/1/3/141331601/2434313.pdfIn PDF document text
    • https://kogovuvukadag.weebly.com/uploads/1/3/2/6/132682039/c44de7c88687c.pdfIn PDF document text
    • http://metabolit-plus.ru/files/file/gojabu.pdfIn PDF document text
    • https://budaxopam.weebly.com/uploads/1/3/4/7/134711784/kexunak.pdfIn PDF document text
    • https://rosewoodcity.org/nbloom/fckuploads/file/kukubedenesoxik.pdfIn PDF document text
    • https://sifavebizibi.weebly.com/uploads/1/3/4/0/134040704/koresodo-rigekenoj-kinuxexezafob-disejovofu.pdfIn PDF document text
    • https://kakujaboregoj.weebly.com/uploads/1/3/5/3/135341432/06909ce59fca29a.pdfIn PDF document text
    • https://famereruzune.weebly.com/uploads/1/3/1/6/131637342/8c2e7.pdfIn PDF document text
    • http://vallovin.it/userfiles/files/wuwugekesapuxajom.pdfIn PDF document text
    • https://kofotugul.weebly.com/uploads/1/3/7/5/137503506/bejeparenovi.pdfIn PDF document text
    • https://nutoxabalatejo.weebly.com/uploads/1/3/3/9/133997198/fisititepiwa-benabasuranik-wofunupaji-jaworedogiz.pdfIn PDF document text
    • https://soenen-pneus.com/upload/file/17766809077.pdfIn PDF document text
    • https://yubit.co.za/YmrXLWy8?keyword=el%20poder%20de%20la%20oraci%C3%B3n%20seg%C3%BAn%20la%20biblia%20reina-valeraPDF link annotation
    • 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_off0000bcf1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bcf1.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bcf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCF1 17944 bytes
SHA-256: c94a43cac79b1cd5f61835232c784772638952bc54eb3289d0d8c423ebde7c26
font_01_sfnt_off0000ea4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10262 11068 bytes
SHA-256: e4531a0d211f7887386c62740acf8b05d3524161cde9aa2870088c2078d240cd
font_03_sfnt_off00011b8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B8D 16400 bytes
SHA-256: 4fac41538b24b9905a28fd549bac37f1e1fdc6f8b032e208628172a5beafd088