Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f87116c0d3a692…

MALICIOUS

PDF

77.4 KB Created: 2022-03-31 14:37:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: ec0df99087be7354203fb4deb8c2be81 SHA-1: 3e1ee02b3435e0cf766ad855ecc4cd333a47002a SHA-256: 98f87116c0d3a6922890ac1db8ce55284f0afa2ae582c9f2c4963de88a8c0f2d
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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.
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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=health%20psychology%20biopsychosocial%20interactions%209th%20edition%20ebook PDF link annotation
    • https://gamidbisha.com/userfiles/file/88440767863.pdfIn PDF document text
    • http://beauty214.com/uploads/files/202202012252351676.pdfIn PDF document text
    • https://sasadopebob.weebly.com/uploads/1/3/5/3/135324308/garozaduvedoru.pdfIn PDF document text
    • https://aravalivssamiti.org/admin/assets/ckeditor/kcfinder/upload/files/63902313855.pdfIn PDF document text
    • https://suxaniwaxunese.weebly.com/uploads/1/3/4/3/134385499/suvowibogirurid.pdfIn PDF document text
    • https://transturist.transturist.com/ckeditor/ckfinder/files/files/62022782042.pdfIn PDF document text
    • http://thiennhanduong.com/ckeditor/kcfinder/upload/files/84351916246.pdfIn PDF document text
    • http://pphjako.pl/userfiles/file/58241965589.pdfIn PDF document text
    • https://bedobefam.weebly.com/uploads/1/3/4/5/134599898/f937a7.pdfIn PDF document text
    • https://fuwemuwiwogul.weebly.com/uploads/1/3/4/0/134016804/d5a96e01260.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/162262b1ade280---vaxokupe.pdfIn PDF document text
    • https://melnikhouse.com/userfiles/file/ruliwiteledafe.pdfIn PDF document text
    • https://zaranofe.weebly.com/uploads/1/3/5/9/135967679/6b496c7192c.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1622ac7dcd8c07---41659732935.pdfIn PDF document text
    • https://bloomland.com/sites/bloomland.com/files/44215838624.pdfIn PDF document text
    • http://ah-taihe.com/upload_fck/file/2022-2-12/20220212122127922686.pdfIn PDF document text
    • http://nanouklid.cz/upload/file/vekivukidazavodexe.pdfIn PDF document text
    • http://studiogeologicotrilobite.com/userfiles/files/rewakak.pdfIn PDF document text
    • https://wivevesatowot.weebly.com/uploads/1/3/0/8/130813399/8915600.pdfIn PDF document text
    • https://mapijilut.weebly.com/uploads/1/3/0/8/130873952/8217550.pdfIn PDF document text
    • https://ceb.lk/assets/js/kcfinder/upload/files/vilop.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_off0000c713.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c713.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c713.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC713 11296 bytes
SHA-256: 0284c293ee97367dc0bc11ff8dd2b22ade314cfc8e35fb9d96a7f863f9134fd8
font_01_sfnt_off0000e129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE129 16948 bytes
SHA-256: 7386c2d9a869e2b14a9d35e3fdb8e5b765f05ecf658cc73b3b1436267a2a45b7
font_02_sfnt_off00010d92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D92 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1