Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d16785f429a577…

MALICIOUS

PDF

79.4 KB Created: 2022-04-03 06:45:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: ce16ef15a630223b245b6f5f1ff791eb SHA-1: c708ea67aeb8deac3739191803383d8469fe2c28 SHA-256: b5d16785f429a577733d48c6efa0e6e27b88f263bf2faac5aa27acb39a1c93e6
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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=tcp/ip%20and%20osi%20model%20ppt PDF link annotation
    • https://janilanupaga.weebly.com/uploads/1/3/4/6/134673225/metopebuxanin-rupejonita-zexabusi.pdfIn PDF document text
    • https://zuzunavodezap.weebly.com/uploads/1/3/0/7/130776081/ritevuvopupemelusi.pdfIn PDF document text
    • https://mitewowepo.weebly.com/uploads/1/3/0/8/130813710/8305f4.pdfIn PDF document text
    • https://mudepazenanaj.weebly.com/uploads/1/3/4/7/134765609/2a159fbc0e.pdfIn PDF document text
    • http://relaxzenter.com/uploads/files/dovagox.pdfIn PDF document text
    • https://vodoxuzet.weebly.com/uploads/1/3/2/6/132681632/fd01283b.pdfIn PDF document text
    • https://kukotefuses.weebly.com/uploads/1/3/1/6/131637352/bebap_nifolosojefedo_tivex_toverit.pdfIn PDF document text
    • https://jevogebog.weebly.com/uploads/1/3/2/3/132303093/fuseweg.pdfIn PDF document text
    • https://tagaxaxe.weebly.com/uploads/1/3/5/3/135390661/vexam.pdfIn PDF document text
    • http://robodit.ru/kcfinder/upload/files/pekixaxakusijonemovowe.pdfIn PDF document text
    • https://pajenugemin.weebly.com/uploads/1/3/4/6/134677616/totujuf-takukajoliv-ritadozaw-notovumu.pdfIn PDF document text
    • http://chornakorn-packing.com/ckfinder/userfiles/files/87672396729.pdfIn PDF document text
    • https://sajanemi.weebly.com/uploads/1/3/4/7/134750514/lagipopanigafaneza.pdfIn PDF document text
    • https://psystat.net/candyticket/uploads/page_images/files/japogodulenetemav.pdfIn PDF document text
    • https://wufotojinelulut.weebly.com/uploads/1/3/1/1/131164112/kugedu.pdfIn PDF document text
    • https://sewimoranekodov.weebly.com/uploads/1/3/0/9/130969375/ece443e8330d.pdfIn PDF document text
    • http://hermandadperdon.es/userfiles/file/voxisosesemuvavanulen.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/42de20f22686b11c1dc22f5dcd38601f/4605466505.pdfIn PDF document text
    • https://wojumujar.weebly.com/uploads/1/3/5/3/135396772/gemozeniwe_joxatunofoxed_sikidok_mafukipal.pdfIn PDF document text
    • https://gibonubud.weebly.com/uploads/1/3/4/8/134877094/7247845.pdfIn PDF document text
    • https://videxopejevis.weebly.com/uploads/1/3/5/3/135333638/823943.pdfIn PDF document text
    • http://spodne-pradlo-2bpoint.sk/UserFiles/File/samure.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_off0000d253.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d253.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD253 17404 bytes
SHA-256: 3383add33122c173655df6d7e0b39da88ad0003053a09a381c3702524b62c4fc
font_01_sfnt_off0000ff6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11783 10572 bytes
SHA-256: 120aff20879071e5ce74f642b11e1480b14369b2f1173ef922ed0b493a9847d6