Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b14f6b637d930c…

MALICIOUS

PDF

70.7 KB Created: 2022-04-26 04:35:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 644103fc882aeb425e6f6a6a78b3b16a SHA-1: 2f8ebd48bfaa3f0b0671ba7d882b9f94b8d73b77 SHA-256: a8b14f6b637d930ca9f951a459ede2c57f7d0772365168f0d08817363c8abdaf
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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.
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://yoyep.co.za/YmrXLWy8?keyword=pechy%20barati%20aage%20band%20baja%20mp3%20song%20download PDF link annotation
    • https://jixusalozexifan.weebly.com/uploads/1/3/1/4/131407855/43a5f07.pdfIn PDF document text
    • https://soxiwavarado.weebly.com/uploads/1/3/1/4/131437421/detibewowerenebe.pdfIn PDF document text
    • https://literuvet.weebly.com/uploads/1/4/1/2/141246301/3830371.pdfIn PDF document text
    • https://zulodoxag.weebly.com/uploads/1/4/1/2/141258540/modidewiwivelomuvomi.pdfIn PDF document text
    • https://fonixkoncert.hu/upload/file/felozimetiripemopediras.pdfIn PDF document text
    • http://minhledtran.com/luutru/files/33015470090.pdfIn PDF document text
    • https://www.nrsa.tj/nrsa_system/ckeditor/kcfinder/upload/files/didudidaden.pdfIn PDF document text
    • https://maintenancebazaar.com/userfiles/file/wonaja.pdfIn PDF document text
    • http://valburysekuritas.co.id/upload/files/bekejivimemibodun.pdfIn PDF document text
    • https://wapugumimujera.weebly.com/uploads/1/3/4/7/134749028/fovitimized_rigirap.pdfIn PDF document text
    • https://kabugumaka.weebly.com/uploads/1/3/6/0/136099465/gabifeluloki-zufuk-vaxizopafexipi-xonoxop.pdfIn PDF document text
    • https://xupugafowepeg.weebly.com/uploads/1/3/0/8/130814457/7b04d.pdfIn PDF document text
    • https://4u70t3k0-4tl.com/contents/files/34841123057.pdfIn PDF document text
    • http://agrimal.pl/userfiles/file/lowesasepizagefapupip.pdfIn PDF document text
    • https://santa.sg/images/users/00000000/files/43733843667.pdfIn PDF document text
    • http://yavuzselimvakfi.org/resimler/site/files/53908743666.pdfIn PDF document text
    • https://tivofemexire.weebly.com/uploads/1/3/4/0/134012880/8705828.pdfIn PDF document text
    • http://studiotecnicostradi.eu/userfiles/files/76779771351.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_off0000ae47.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ae47.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE47 16824 bytes
SHA-256: bc1f1d2e0046fbfcd438221644df4b8f1ce247b7f1caf3448b66675b4bc7fe68
font_01_sfnt_off0000da4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA4C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF263 11604 bytes
SHA-256: 10b582c152cf413ab76c2e87deded2f17df859118a9e4ea558ffaeda30c2405e