Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c8d67b69d0e7b4…

MALICIOUS

PDF

80.8 KB Created: 2022-05-16 21:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: 140f063449c2da685da874f2169cc0ba SHA-1: cad9add8822a00f97775e7848b29b6ddfd434141 SHA-256: a9c8d67b69d0e7b4a738fa97e7f7080a53b498cb841e2f390d8ef7c59c1137a2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 5

  • 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 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://norin.co.za/YmrXLWy8?keyword=computer%20science%20an%20overview%2012th%20edition%20answers%20pdf%202018%202019 PDF link annotation
    • http://www.colormotion.cz/UserFiles/file/37703858495.pdfIn PDF document text
    • http://hylevel.net/Uploadfiles/files/94465902535.pdfIn PDF document text
    • https://astoraccessories.com/uploads/ckfinder/files/8362804929.pdfIn PDF document text
    • https://ferest.ro/imagini_ws/53995901886.pdfIn PDF document text
    • https://xupulepil.weebly.com/uploads/1/3/4/3/134322414/vebevi-zoverakirufo-xewokaxoku.pdfIn PDF document text
    • https://nakusiwikabudu.weebly.com/uploads/1/3/4/9/134904560/topikarasoj.pdfIn PDF document text
    • https://difekubo.weebly.com/uploads/1/3/4/7/134714923/lafikexonikudoxojine.pdfIn PDF document text
    • https://ia-community.com/upload/files/46328055037.pdfIn PDF document text
    • https://badanie-wody.pl/galeria/file/89768140583.pdfIn PDF document text
    • https://247christianity.org/fckeditor/userfiles/file/863504078291650506482.pdfIn PDF document text
    • http://upakuika.com/img/file/nosaxumevenodezigawuvabog.pdfIn PDF document text
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/d9rtrqhi5mslaco9ar7eh969ah/wudum.pdfIn PDF document text
    • https://outforced.mdei.info/ckfinder/userfiles/files/rotunorufitulosot.pdfIn PDF document text
    • https://fiferogupinuwa.weebly.com/uploads/1/3/5/3/135306016/789501.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/162824c516012e---xedebibanelovikafid.pdfIn PDF document text
    • http://nct-vn.com/userfiles/file/mewimilipedizurivevil.pdfIn PDF document text
    • http://bthg.bagwfbm.de/upload/files/bafegibevoki.pdfIn PDF document text
    • https://kululukeju.weebly.com/uploads/1/3/4/3/134371963/9703608.pdfIn PDF document text
    • https://bekusidazeri.weebly.com/uploads/1/3/4/8/134859547/lasof.pdfIn PDF document text
    • https://hyundainhapkhau.vn/upload/files/nizafujilanavezog.pdfIn PDF document text
    • https://magisuxoriruwa.weebly.com/uploads/1/4/1/4/141448878/mitavefotenezat_minojedifego_vegamom_nepurefadag.pdfIn PDF document text
    • https://wobipogipexiwom.weebly.com/uploads/1/3/1/0/131070125/64a7fffa.pdfIn PDF document text
    • https://ukmriptek.org/codeIgniter-hmvc/userfiles/files/sixulizujipexoxoxoponip.pdfIn PDF document text
    • http://legrand-etika.su/kcfinder/upload/files/4473324344.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_off0000d2de.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d2de.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2DE 16900 bytes
SHA-256: 415db4e7f70de59804619d2168be18a54deb0277d79cfc4e4c7cb2d287beaf45
font_01_sfnt_off0000ff2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF2C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11743 11792 bytes
SHA-256: 6da5104f8aa9667c696d812c5cac8a18b08cc7fbea4421c958ecda423ff05178