Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c8ec4f4720b71a…

MALICIOUS

PDF

90.6 KB Created: 2022-04-05 14:43:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: f72d70a556a6bde20813637dd7b10805 SHA-1: 7ef078a45e31b105d7a22fb00867c728376a84c9 SHA-256: 25c8ec4f4720b71a3a662f861e85c480821aa03472417979938a6353717b812b
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://podar.co.za/YmrXLWy8?keyword=how%20do%20carbonated%20water%20makers%20work PDF link annotation
    • http://www.jindatunnel.com/up_files/file/53276040884.pdfIn PDF document text
    • http://venusland.vn/app/webroot/img/files/pefupikenikifu.pdfIn PDF document text
    • http://chip-chup.hu/upload/file/10306339845.pdfIn PDF document text
    • http://kzlo.pl/fotki/fotki/file/76995030527.pdfIn PDF document text
    • http://thechitay.com/uploads/userfiles/file/donotafopifavu.pdfIn PDF document text
    • http://grubstreet.ca/ckfinder/userfiles/files/vapafuge.pdfIn PDF document text
    • http://kotauto.ru/img/photo/files/dirunosejejivaku.pdfIn PDF document text
    • https://wifirinopemuv.weebly.com/uploads/1/3/4/7/134762260/7108246.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16235b8021499f---gavev.pdfIn PDF document text
    • https://fezuxikazosulav.weebly.com/uploads/1/3/1/3/131398093/jurif.pdfIn PDF document text
    • https://wudegilunukoga.weebly.com/uploads/1/3/1/3/131379548/7b1216ec3fa2a69.pdfIn PDF document text
    • https://lodewaga.weebly.com/uploads/1/3/7/5/137518990/dabozabexi_tewesipov_zifajebar_doberesobagafuv.pdfIn PDF document text
    • https://kajabukege.weebly.com/uploads/1/3/1/3/131379037/janefuwokuzedav-makujojunesevoz-sebozimumixew-lokalebuf.pdfIn PDF document text
    • https://www.danielbarboza.com.br/v2/meuAdmin/inclusos/plugins/ckeditor/plugins/kcfinder/upload/files/36928128334.pdfIn PDF document text
    • https://wiwovadale.weebly.com/uploads/1/3/5/3/135322143/wapalurivinele-pexaxebirivof-dilolaramokada.pdfIn PDF document text
    • https://genovaxoduw.weebly.com/uploads/1/3/4/3/134388418/8511703.pdfIn PDF document text
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1622324d818b2c---binobipikaredoxuzunejuwem.pdfIn PDF document text
    • https://nililuwuta.weebly.com/uploads/1/3/0/7/130775375/ef789da08.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_off0000fe2e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000fe2e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE2E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11645 10704 bytes
SHA-256: b764c38e90ce53c91ed02a3dd2f6e8b36265a3dd772cda3d7557398e2ceea650
font_02_sfnt_off00012edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EDB 17496 bytes
SHA-256: 498e1b535f6e31865ee0665b121a1c6e2de5344f991871de99514c5c6a23bdf9