Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb84fbb90add8942…

MALICIOUS

PDF

78.2 KB Created: 2022-05-06 18:46:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-08
MD5: ee4763e5ac56ee22f454cdb86c3f6575 SHA-1: 4f95aefd5130b7b5b88e8f1f1e0bc953d18fd392 SHA-256: cb84fbb90add89420a0ad684c0e06cca89a647322ff3d361d4421d0879ceeb06
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9883

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 http://bochkari24.ru/pic/file/sunawevap.pdf In PDF document text
    • https://taxikifa.weebly.com/uploads/1/3/4/4/134496463/4bab9a3e49494.pdfIn PDF document text
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16254e41d87a87---26042633660.pdfIn PDF document text
    • https://jepukarebav.weebly.com/uploads/1/3/5/3/135321711/fe4bee.pdfIn PDF document text
    • http://kovofilm.cz/userfiles/file/48859066842.pdfIn PDF document text
    • http://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/85138172938.pdfIn PDF document text
    • http://myhomeirvine.com/userfiles/files/pibufog.pdfIn PDF document text
    • http://euro-service.org/kcfinder/upload/images/suxoxokonudurudogan.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/b49988b9c3ab2b6a3af3737fd6acaac4/gabelipunopebuxuxusemo.pdfIn PDF document text
    • https://xafuzijinole.weebly.com/uploads/1/3/4/6/134667747/acea4b0.pdfIn PDF document text
    • https://kifelulamexeb.weebly.com/uploads/1/3/4/3/134310841/laviv.pdfIn PDF document text
    • http://ah-taihe.com/upload_fck/file/2022-3-22/20220322204517997696.pdfIn PDF document text
    • https://mufunada.weebly.com/uploads/1/3/4/6/134623537/7716309.pdfIn PDF document text
    • https://sazadasixitabe.weebly.com/uploads/1/3/4/4/134404720/sozakupid.pdfIn PDF document text
    • https://bukenazupe.weebly.com/uploads/1/3/4/5/134584610/gixekefejex.pdfIn PDF document text
    • https://gitemeloduj.weebly.com/uploads/1/3/1/4/131406811/9066152.pdfIn PDF document text
    • https://repositugi.weebly.com/uploads/1/3/0/7/130738607/tibobowo.pdfIn PDF document text
    • https://nagozexifetuli.weebly.com/uploads/1/3/4/3/134340384/zelilozezi.pdfIn PDF document text
    • http://spodne-pradlo-2bpoint.sk/UserFiles/File/22047277326.pdfIn PDF document text
    • http://talcmanagement.com/uploaded_files/userfiles/files/62195253080.pdfIn PDF document text
    • http://grv.arq.br/admin/kcfinder/upload/files/newidavibaduxo.pdfIn PDF document text
    • https://surfchem.gr/files/files/55625187547.pdfIn PDF document text
    • http://cargologicru.com/sadm_files/91432792441.pdfIn PDF document text
    • https://laforefuje.weebly.com/uploads/1/3/5/3/135333455/ruzufeluvene_dizerokodi_muxujizagujer.pdfIn PDF document text
    • https://zojobowexiwe.weebly.com/uploads/1/3/1/3/131380894/pajenakal_tipuvazuzijive_xelofuv_zirixanogiralek.pdfIn PDF document text
    • https://zatitudebijozi.weebly.com/uploads/1/3/4/4/134460539/zanun.pdfIn PDF document text
    • http://frigotechreina.com/userfiles/files/64302339416.pdfIn PDF document text
    • https://xemavuvewo.weebly.com/uploads/1/3/5/3/135394060/5217442.pdfIn PDF document text
    • http://perila-vrn.ru/userfiles/file/16747422340.pdfIn PDF document text
    • https://hotelharmika.com/assets/userfiles/files/dawezifezefexoki.pdfIn PDF document text
    • https://bartonsteel.com/tony/barton/ckfinder/userfiles/files/8898298725.pdfIn PDF document text
    • http://dydlhx.com/upfiles/file///34630916577.pdfIn PDF document text
    • http://www.dawnrotaryclub.tw/UserFiles/files/92160844737.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=lumenera+rpg+pdf+file+free+pdfPDF link annotation
    • http://www.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/wogibawasewebimogexot.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_off0000ccd1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ccd1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD1 10512 bytes
SHA-256: 8e85bf900e30cdd514a12a50a240b10d3b59357d0a8eccd1d1ecd94953b51afe
font_01_sfnt_off0000e462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE462 17424 bytes
SHA-256: cb5260fab75c9a5b5abda3194c90cc13699e2a035153c3162301dd02649c0ca2
font_02_sfnt_off0001126d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1126D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1