Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ec6e1549dac48a…

MALICIOUS

PDF

105.5 KB Created: 2022-05-23 07:00:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: 5ddeb8bf94cfd21013da1619b38c22f2 SHA-1: 6084221cb43d473124dad51ee3a25fe5ef4cf4e3 SHA-256: b6ec6e1549dac48abd90b49d42293a3182952c51ecd90fef243788bd28158e16
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9877

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://haenuri.net/ckupload/files/lasoxijinitozanikab.pdf In PDF document text
    • http://kultura-vyazniki.ru/sites/default/files/file/fuwosikodinosutilago.pdfIn PDF document text
    • https://zesuzizisizep.weebly.com/uploads/1/4/1/4/141495799/fapejupabaz_difetur_sawarom.pdfIn PDF document text
    • http://www.nena-artspace.com/ckfinder/userfiles/files/lomomowikav.pdfIn PDF document text
    • http://peoplefineart.com/assets/202202/files/20220218182354258130.pdfIn PDF document text
    • https://gogodelile.weebly.com/uploads/1/3/0/9/130969080/sogivoronubuna-bemovemid.pdfIn PDF document text
    • https://dipitamadupod.weebly.com/uploads/1/3/4/8/134882687/5129193.pdfIn PDF document text
    • https://gilawigegazimo.weebly.com/uploads/1/3/4/5/134520665/7519654.pdfIn PDF document text
    • http://klenderbio.com/upload/files/xexemuvedeligeruz.pdfIn PDF document text
    • https://zeteparikimifol.weebly.com/uploads/1/3/1/6/131637109/soguzekugezo_juzigeripare_nodadubegew_motemopibobotos.pdfIn PDF document text
    • https://kalodutizifurul.weebly.com/uploads/1/3/4/5/134597908/5271659.pdfIn PDF document text
    • https://bujopovuw.weebly.com/uploads/1/3/4/3/134390204/3828543.pdfIn PDF document text
    • https://fezinonod.weebly.com/uploads/1/3/1/0/131070080/tifatara-dokonusetutewob.pdfIn PDF document text
    • https://tafiweva.weebly.com/uploads/1/3/5/9/135993394/1943532.pdfIn PDF document text
    • https://mijidasi.weebly.com/uploads/1/4/1/3/141350069/fizororipaf.pdfIn PDF document text
    • https://lemoguvan.weebly.com/uploads/1/3/7/5/137501156/parabupalexufosuw.pdfIn PDF document text
    • https://wabemogulumog.weebly.com/uploads/1/3/4/3/134384503/todarumifi-kavepazero-sotar.pdfIn PDF document text
    • http://riverside.tw/user_upload/files/tezisifagenetivamipo.pdfIn PDF document text
    • https://rofofomigedug.weebly.com/uploads/1/3/4/4/134486696/1016df7f48a4ea.pdfIn PDF document text
    • https://demegokesikamo.weebly.com/uploads/1/3/1/4/131454383/gulukefejis.pdfIn PDF document text
    • https://pod-jaskolka.pl/files/files/18941194279.pdfIn PDF document text
    • http://trongtinpc.com/luutru/files/furogazomadipafenewutek.pdfIn PDF document text
    • http://se-ty.com/uploads/userfiles/file/gefigudojelivufekuz.pdfIn PDF document text
    • https://suzabotofofetab.weebly.com/uploads/1/3/4/7/134739937/tujapoko.pdfIn PDF document text
    • https://sixapinipuso.weebly.com/uploads/1/3/1/3/131384402/loradogegufexofigu.pdfIn PDF document text
    • https://noxogilokamaga.weebly.com/uploads/1/4/1/2/141259145/vevikukowuvut.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=solving%20inequalities%20in%20real%20life%20worksheet%205th%20classPDF 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_off000137be.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000137be.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000137be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137BE 11316 bytes
SHA-256: a465a1d17de735c64762c560649dfe82aabe590d469ea78090fa6a39ed6c5b1d
font_01_sfnt_off0001521b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1521B 17236 bytes
SHA-256: c4d79b5a0bb5ab96176b580f9dd8bbf55fec82f9b06ac8de4652e2dbfbbe795c
font_02_sfnt_off00017f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17F67 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1