Malicious PDF — malware analysis report

Static analysis result for SHA-256 552fe6e88742e8c5…

MALICIOUS

PDF

80.6 KB Created: 2022-04-01 04:01:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: bc4c5decd7f3ae756b21cf6fd271e172 SHA-1: 9f4ff97c2909efc42427c299abfc7294698f8183 SHA-256: 552fe6e88742e8c584bf2ac99df26b5e5427d6e0ffad17e404425fbd8ed37762
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://bresky.cz/res/file/lewajixere.pdf In PDF document text
    • https://kaptenhoki.org/contents/files/18462345296.pdfIn PDF document text
    • https://niwanokanu.weebly.com/uploads/1/3/4/5/134592400/ab74051.pdfIn PDF document text
    • https://decoveinvestment.com/userfiles/file/2161016109.pdfIn PDF document text
    • http://xn--38-mlcqjbufcz6h.xn--p1ai/userfiles/file/20477278425.pdfIn PDF document text
    • https://ossarentacar.cl/admin/uploads/file/fopedifijevuf.pdfIn PDF document text
    • https://xiwulugizasu.weebly.com/uploads/1/3/2/7/132741433/fejapevu.pdfIn PDF document text
    • http://litroshaber.net/resimler/files/mikidomunijate.pdfIn PDF document text
    • https://puxasune.weebly.com/uploads/1/3/1/3/131379014/3260027.pdfIn PDF document text
    • https://tubababekegoso.weebly.com/uploads/1/3/4/8/134880125/7188001.pdfIn PDF document text
    • https://ravuwiva.weebly.com/uploads/1/3/4/5/134519437/e911e3d127b246.pdfIn PDF document text
    • http://merten-antik.su/kcfinder/upload/files/fulafapumoraxalifejuvuko.pdfIn PDF document text
    • https://fusodozot.weebly.com/uploads/1/3/4/0/134096428/1122677.pdfIn PDF document text
    • http://alles-vom-schreiner.de/userfiles/file/78560027967.pdfIn PDF document text
    • https://moxiwomalupul.weebly.com/uploads/1/3/4/5/134598527/c4d965f01927.pdfIn PDF document text
    • https://vurazomuloja.weebly.com/uploads/1/3/4/3/134322302/07e42c3787c1a.pdfIn PDF document text
    • https://simebofes.weebly.com/uploads/1/3/1/4/131438459/jerefikopexepad-salomibazibutij-bovisi-vivuwesekuki.pdfIn PDF document text
    • https://xariwavunulopex.weebly.com/uploads/1/3/1/4/131406448/madejepaxame.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/pavikabepatotugavoz.pdfIn PDF document text
    • https://zipatusuf.weebly.com/uploads/1/3/4/0/134012633/xuzoraxuxalus-xasim-jukufodimi.pdfIn PDF document text
    • https://xafuzijinole.weebly.com/uploads/1/3/4/6/134667747/lizax.pdfIn PDF document text
    • https://prizmaemys.com/img/files/losetafurenatobagoxage.pdfIn PDF document text
    • https://coprose.com.mx/kcfinder/upload/files/gebemetozigorarofo.pdfIn PDF document text
    • https://triatlonshop.cz/userfiles/file/88259394486.pdfIn PDF document text
    • https://yubit.co.za/YmrXLWy8?keyword=what%20is%20the%20best%20diet%20for%20bulking%20upPDF 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_off0000d49b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d49b.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d49b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD49B 17996 bytes
SHA-256: 969f9039c8ee367285149e7be2795d32e1490737cbd215283393ad3ac10e90e4
font_01_sfnt_off000103a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103A3 11104 bytes
SHA-256: 3e86f642497e23e66d4bf6062ac9c0027b09ebabef46aa5c95b472a79a8d365e
font_02_sfnt_off00011d0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D0D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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