Malicious PDF — malware analysis report

Static analysis result for SHA-256 55013a2cd53407e8…

MALICIOUS

PDF

76.0 KB Created: 2022-04-06 11:34:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 5c9b24449e74f1eae8f2a6f92743d196 SHA-1: 8e8bab3cf83f70708faa48c32f2e975a5f951f6d SHA-256: 55013a2cd53407e8faef86109f72915359c2c47017cc013de59e13f610b06982
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://gitarufimoka.weebly.com/uploads/1/3/4/2/134235546/wiforovironejitekos.pdf In PDF document text
    • https://supatisama.weebly.com/uploads/1/4/1/2/141246424/simiwelurapeleri.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1624894620db5c---nazomibas.pdfIn PDF document text
    • http://music-saikung.com/ckfinder/userfiles/files/84763205904.pdfIn PDF document text
    • https://www.medicalbi.com/ckfinder/userfiles/files/16796838624.pdfIn PDF document text
    • https://dapinolun.weebly.com/uploads/1/3/4/7/134762022/xudit-wopaguza-wajisulibol.pdfIn PDF document text
    • https://petrovsky14.ru/docs/files/38457595802.pdfIn PDF document text
    • https://lupunudarowujak.weebly.com/uploads/1/3/4/5/134599946/bemugenagezi.pdfIn PDF document text
    • https://nuzixusimupe.weebly.com/uploads/1/3/4/3/134306281/7306077.pdfIn PDF document text
    • https://zukutalemuz.weebly.com/uploads/1/3/4/5/134582669/mejorivofodawut.pdfIn PDF document text
    • https://fuvekusegubo.weebly.com/uploads/1/3/4/7/134736786/292866.pdfIn PDF document text
    • https://gixovazaviv.weebly.com/uploads/1/3/5/9/135982549/fikop-banig-jejozogejavujad-movidakurabelik.pdfIn PDF document text
    • https://www.miroku-mfg.co.jp/system/js/kcfinder/upload/files/wufidazerefaxe.pdfIn PDF document text
    • http://rulife.ru/ckfinder/userfiles/files/6495243495.pdfIn PDF document text
    • https://nogurutofuxuj.weebly.com/uploads/1/3/4/5/134525281/2277410.pdfIn PDF document text
    • https://www.unecol.com/uploads/kcfinder/upload/files/guvaropipapamajigumofomol.pdfIn PDF document text
    • https://dovesexafonom.weebly.com/uploads/1/3/4/7/134702519/7cc04b5f6.pdfIn PDF document text
    • https://bibomezu.weebly.com/uploads/1/3/2/7/132710601/801865893f86cc.pdfIn PDF document text
    • https://find-domain.lazy-online-shop.com/app/webroot/userfiles/files/lisaga.pdfIn PDF document text
    • https://kupifima.weebly.com/uploads/1/3/0/7/130775493/vapabazem-nedokedovema-midemefiwuxun-jaxadiserego.pdfIn PDF document text
    • https://pidodogifir.weebly.com/uploads/1/3/1/3/131383649/2033697.pdfIn PDF document text
    • http://wx-test.com/upload/ckimg/files/202204042042432263.pdfIn PDF document text
    • https://podar.co.za/YmrXLWy8?keyword=how%20to%20draw%20a%20realistic%20xmas%20treePDF link annotation
    • https://fuwelajefupeze.weebly.com/uploads/1/3/5/3/135390198/dexojizovur-wijusiso.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_off0000c5b6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c5b6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ddcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDCD 10608 bytes
SHA-256: 063168750ca5093d96448e8bc8ef8406e85e1ece69fdbe0abb222f10d4c358a8
font_02_sfnt_off0000f613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF613 16840 bytes
SHA-256: 8c7b24c3a0ca8829d9f5e18db25200cdf3eb45bdf1c6a5230a6afc5b8d395b44