Malicious PDF — malware analysis report

Static analysis result for SHA-256 550d1ec4d5d35561…

MALICIOUS

PDF

78.0 KB Created: 2022-04-27 01:40:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 8979da0b00bca692a3c4f14d5f908eca SHA-1: 4c6c2f80955b0ffb226d92e6d1a1f8c9c12eb98d SHA-256: 550d1ec4d5d35561f1566c38540d4bf07deb8f9fb32399da655e753eff4ce37f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://podar.co.za/YmrXLWy8?keyword=how%20to%20use%20husky%20bottle%20jack PDF link annotation
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/162400294285e0---24876247742.pdfIn PDF document text
    • https://kuratoso.weebly.com/uploads/1/3/4/3/134329811/feguzolamed.pdfIn PDF document text
    • https://giwisosolu.weebly.com/uploads/1/3/4/7/134752077/3c613016.pdfIn PDF document text
    • https://intimtreningdebrecen.hu/frontend/ck/kcfinder/upload/files/rasajepareredefir.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/162453afdcdde5---32743202687.pdfIn PDF document text
    • https://mashura.co/userfiles/files/debipidi.pdfIn PDF document text
    • http://kipia-nn.ru/userfiles/file/keximevodanopevodadeboxu.pdfIn PDF document text
    • https://kingsnews.org/app/webroot/js/image/files/41056919720.pdfIn PDF document text
    • http://lab4050.com/upload/editor/file/jukigonego.pdfIn PDF document text
    • https://gurufikenifa.weebly.com/uploads/1/3/2/3/132303388/67bdb882.pdfIn PDF document text
    • http://cancercareresearch.com/userfiles/file/magamomekeruweritus.pdfIn PDF document text
    • https://rabepifisusix.weebly.com/uploads/1/3/4/8/134881283/nipitewojome.pdfIn PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621d5497a0312---46873604838.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/162329d671921a---96613361755.pdfIn PDF document text
    • http://proleef.com/upload/files/vasab.pdfIn PDF document text
    • http://madiagranitosilano.it/userfiles/files/16830047789.pdfIn PDF document text
    • http://byecook.com/ckupload/files/rejoseragenavovaka.pdfIn PDF document text
    • http://michigan.easydefensivedriving.net/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/vepevalesota.pdfIn PDF document text
    • https://leg-vein.jp/kcfinder/upload/files/65858426223.pdfIn PDF document text
    • http://iqlacpro.vn/emotive/upload/files/56734213562.pdfIn PDF document text
    • https://lalidusuferub.weebly.com/uploads/1/3/4/4/134440540/radomawixu.pdfIn PDF document text
    • https://jatupixi.weebly.com/uploads/1/3/1/3/131398141/7873713.pdfIn PDF document text
    • https://xeropupofusopa.weebly.com/uploads/1/3/0/7/130776394/df4cb9c1.pdfIn PDF document text
    • http://elbe-radweg.biz/storage/upload/files/moguwelububo.pdfIn PDF document text
    • http://nesemlak.com/test/images/uploads/files/vamilawunar.pdfIn PDF document text
    • https://www.tulsarad.com/my_content/js/ckfinder/userfiles/files/tajunifugegodetafeloteno.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_off0000ce89.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ce89.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE89 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e6a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A0 10684 bytes
SHA-256: c34096c5842e1607726defe7d676dd3047a4d00af8510cb271e1b2cdb262b9c0
font_02_sfnt_off0000ff67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF67 16708 bytes
SHA-256: fbe1045f5282053580839430ed1d25d6199566a67fd3c8b9813a977249869990