Malicious PDF — malware analysis report

Static analysis result for SHA-256 258bb39a8896baf8…

MALICIOUS

PDF

81.5 KB Created: 2022-04-24 06:44:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: e1b272aa07b25b5ff6709086151a39cc SHA-1: 31879c360224e128f02f8f65fb3a98c0ebf2eab1 SHA-256: 258bb39a8896baf8ed9c17835360ac547ad4ebb95db1bed29c7b92cf36eecc5e
211 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 7

  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://www.3zslitomysl.cz/admin/editor/kcfinder/upload/files/98726306385.pdf In PDF document text
    • http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/1644226521939.pdfIn PDF document text
    • https://sewetupowak.weebly.com/uploads/1/3/5/9/135971958/32db34723d0b4.pdfIn PDF document text
    • https://fobepomakiroka.weebly.com/uploads/1/3/0/8/130874330/8708594.pdfIn PDF document text
    • https://vofadifop.weebly.com/uploads/1/3/4/5/134580142/vubiwusazadudu-fifok-totexesapugak.pdfIn PDF document text
    • http://se-ty.com/uploads/userfiles/file/59975179398.pdfIn PDF document text
    • http://1088.net.vn/userfiles/file/tamebogaf.pdfIn PDF document text
    • https://taxikifa.weebly.com/uploads/1/3/4/4/134496463/guvivetakefiwun_ralofa.pdfIn PDF document text
    • https://kukusekiwija.weebly.com/uploads/1/3/5/3/135389364/2e0e8857d332b7.pdfIn PDF document text
    • https://detabifaf.weebly.com/uploads/1/3/1/4/131436978/sofoxopavuda_nozafizi_kazekes.pdfIn PDF document text
    • https://pikhospital.com/ck_uploads/uploads/files/zegotipabifina.pdfIn PDF document text
    • https://nexuragero.weebly.com/uploads/1/3/4/7/134751893/sedowaj.pdfIn PDF document text
    • https://rujuramokukavet.weebly.com/uploads/1/3/0/7/130739146/5323650.pdfIn PDF document text
    • https://komiwego.weebly.com/uploads/1/3/2/6/132695384/31ba5e0a.pdfIn PDF document text
    • http://0978059389.com/CKEdit/upload/files/wisivupagosataresotamene.pdfIn PDF document text
    • https://mamowolo.weebly.com/uploads/1/3/4/7/134714390/34221d.pdfIn PDF document text
    • https://xafituku.weebly.com/uploads/1/3/4/8/134863640/02cfafd9fe7906.pdfIn PDF document text
    • https://dimawirosaj.weebly.com/uploads/1/3/3/9/133997296/kubox-bowusukus-senevabanije-pubekelof.pdfIn PDF document text
    • https://russiandance.ru/frontend/web/js/kcfinder/upload/files/72331835851.pdfIn PDF document text
    • https://rigoxetevub.weebly.com/uploads/1/3/4/0/134017132/7330094.pdfIn PDF document text
    • http://karthikeyanjayaram.in/userfiles/file/watogoniludifowure.pdfIn PDF document text
    • http://isiknakliyatmasko.com/img/editor/image/file/zefugopogefewedimugiva.pdfIn PDF document text
    • https://kupifibadobibe.weebly.com/uploads/1/3/4/5/134512214/xerupavalivevuwiwupi.pdfIn PDF document text
    • https://majabowuji.weebly.com/uploads/1/3/6/0/136092793/jolafewe-wudeburinul-jakeji.pdfIn PDF document text
    • https://tefojemitadu.weebly.com/uploads/1/3/1/6/131606809/jigakavobomax.pdfIn PDF document text
    • https://loheb.co.za/YmrXLWy8?keyword=dantePDF 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_off0000d7d1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d7d1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D1 17208 bytes
SHA-256: c507dec1961df2f700604f4c96e77898e6f129f6bfdec4fdd38511489b0b465e
font_01_sfnt_off0001047e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1047E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011c95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C95 10996 bytes
SHA-256: 6222b96616e6207dfad7130d68fbfa60cdd1ab18288e4ac1d80b720182a36070