Malicious PDF — malware analysis report

Static analysis result for SHA-256 0808280b4eac6b66…

MALICIOUS

PDF

75.2 KB Created: 2022-04-05 12:22:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-21
MD5: e4e323c7cb8a3082240a8715a826acfa SHA-1: 65d1162276541f9ae7e3adba4c7f9d4f6a58bc88 SHA-256: 0808280b4eac6b665ce8bf9b01007539e7216a1529fae4a56dbf390f172c22b9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xn--4k0b43gkwo4gn.com/upload/editor/file/bipikawup.pdf In PDF document text
    • https://guzozexuvuro.weebly.com/uploads/1/3/4/3/134322735/dc843f.pdfIn PDF document text
    • https://kewusubeve.weebly.com/uploads/1/3/4/5/134515363/946104c69.pdfIn PDF document text
    • https://xororowikaluna.weebly.com/uploads/1/3/4/6/134643421/a06619.pdfIn PDF document text
    • http://ehomeforeclosure.org/images/file/58780780539.pdfIn PDF document text
    • https://denumojadiribik.weebly.com/uploads/1/3/4/0/134042792/9327486.pdfIn PDF document text
    • https://rozetki.moscow/kcfinder/upload/files/fofawiviriwurogozelim.pdfIn PDF document text
    • https://gitexapovaje.weebly.com/uploads/1/3/4/4/134464395/18a60a70edaca.pdfIn PDF document text
    • https://mokogexikimowo.weebly.com/uploads/1/3/4/3/134321985/bexixamifu.pdfIn PDF document text
    • https://rodamopuxex.weebly.com/uploads/1/3/4/3/134354351/nekow-domixilaxogog.pdfIn PDF document text
    • https://gupinemarumilaw.weebly.com/uploads/1/3/4/0/134040787/9384344.pdfIn PDF document text
    • https://kudipunebux.weebly.com/uploads/1/3/4/5/134509365/potuwevuworonolarog.pdfIn PDF document text
    • https://dorakipep.weebly.com/uploads/1/3/4/7/134747047/5947dc.pdfIn PDF document text
    • https://istihdamhaberleri.com/upload/ckfinder/files/71640576719.pdfIn PDF document text
    • https://wotixefutakit.weebly.com/uploads/1/3/2/8/132815753/2965696.pdfIn PDF document text
    • http://www.razitka-conti-trodat.cz/kcfinder/upload/files/79098714919.pdfIn PDF document text
    • https://wusaxipexezoz.weebly.com/uploads/1/3/2/3/132302720/4879916.pdfIn PDF document text
    • https://sunuf.co.za/YmrXLWy8?keyword=ged%20rla%20practice%20test%20pdfPDF 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_off0000c24e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c24e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c24e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC24E 10428 bytes
SHA-256: e1bf3ae962fc9dc7319431346a4e4e9e7209619412b52787e6e2c2f7eb89e939
font_01_sfnt_off0000da0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA0D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f21f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF21F 17184 bytes
SHA-256: 754068917b074b5e13dc4547a0af682b1b3e5aaec764763f7ceece0d8605f3a4