Malicious PDF — malware analysis report

Static analysis result for SHA-256 552532d9dfd63969…

MALICIOUS

PDF

83.2 KB Created: 2022-04-01 12:43:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 4860c751a7fa76d5638521f439958994 SHA-1: a6d31ad4786a091032644d658b813f4e1fde6c65 SHA-256: 552532d9dfd63969af9a80b051d49c39639b58b57e45fb709fd4f979938dd134
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://loheb.co.za/YmrXLWy8?keyword=speaking%20english%20lesson%20plans PDF link annotation
    • https://twinslock.com/ckfinder/userfiles/files/bobozubadapefexoja.pdfIn PDF document text
    • https://tazowodogakog.weebly.com/uploads/1/3/1/4/131437711/vegobugu-zudebu-pexutovimuz.pdfIn PDF document text
    • https://wimiberurazem.weebly.com/uploads/1/3/4/3/134351881/jekepoxepetipo-jupesivilusuw-gujebu.pdfIn PDF document text
    • https://rizadubarezesul.weebly.com/uploads/1/3/4/4/134499036/jidinewarisuguj.pdfIn PDF document text
    • http://nexxstep.nl/userfiles/file/45801762925.pdfIn PDF document text
    • http://mijinmotor.com/fckeditor/userfiles/file/vakatozobo.pdfIn PDF document text
    • https://ribelogexarov.weebly.com/uploads/1/3/4/5/134500322/5613b3f63f16b88.pdfIn PDF document text
    • https://zajutarox.weebly.com/uploads/1/3/0/8/130814803/923ba8577c63a8c.pdfIn PDF document text
    • http://hajostanfolyam.hu/admin/kcfinder/upload/files/dolezofir.pdfIn PDF document text
    • http://nanobubblevietnam.com/uploads/userfiles/file/62541661232.pdfIn PDF document text
    • https://nhatngudongkinh.com/upload/ckupload/files/tupozarobosokaxepi.pdfIn PDF document text
    • http://ndt-tl.ru/upload/file/87993820988.pdfIn PDF document text
    • https://atasuorganiktarim.com/upload/ckfinder/files/gaxaw.pdfIn PDF document text
    • http://abrushfire.com/kcfinder/upload/files/53215052122.pdfIn PDF document text
    • http://www.icmtravel.net/assets/ckeditor/kcfinder/upload/files/95027968064.pdfIn PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ff2a24d7223---duxesuvotapatuvabavetuze.pdfIn PDF document text
    • https://juxapokidopelif.weebly.com/uploads/1/3/1/6/131606881/welamizi-rojer-labadiwemefef-padowamupulanu.pdfIn PDF document text
    • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/912e672b4ba05a75f8c53a3804c6fb8b/zimozumubalafitixebuxaz.pdfIn PDF document text
    • https://krainaogrodow.eu/zdjecia/fck/file/remurejenanokuriwikekexo.pdfIn PDF document text
    • https://jodhpurtravels.com/nbloom/fckuploads/file/kulibafuxopibija.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_off0000e2f6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e2f6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F6 10500 bytes
SHA-256: 467c72da99a47ed3c317c2358cbf9675f45cb51e6593fc6f07ec857bf6d95696
font_01_sfnt_off0000fab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAB7 16900 bytes
SHA-256: 59a64af3616d1516e91e18df48125d9a55785442ef590987e245ca36b3bd571d
font_02_sfnt_off0001268d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1268D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1