Malicious PDF — malware analysis report

Static analysis result for SHA-256 550836e72d3c6fa3…

MALICIOUS

PDF

86.0 KB Created: 2022-05-01 19:35:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 7b7cd4ebd8e6d058aa2b6060c8423973 SHA-1: f4710c80b638b5c7a3347228ceaba315640c2de9 SHA-256: 550836e72d3c6fa3f8e13e43e810ad56ad7f6a0b34cd854f1961a41b4e8dec84
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • 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://yoyep.co.za/YmrXLWy8?keyword=how%20much%20does%20information%20technology%20pay PDF link annotation
    • https://desudesukijowa.weebly.com/uploads/1/3/6/0/136033838/25ba37e9.pdfIn PDF document text
    • https://nulonoxexut.weebly.com/uploads/1/4/1/3/141309783/a45fd50808.pdfIn PDF document text
    • https://vitanov.rs/files/vekunodop.pdfIn PDF document text
    • http://teplorium.su/userfiles/file/savatewodoseviw.pdfIn PDF document text
    • http://abbaorphancare.org/survey/userfiles/files/14215815263.pdfIn PDF document text
    • https://kibinino.weebly.com/uploads/1/3/4/6/134603545/biwixej.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1623e3107aaa44---78000901897.pdfIn PDF document text
    • https://wevoforu.weebly.com/uploads/1/3/4/5/134591306/padidalewotim.pdfIn PDF document text
    • http://almar-bus.pl/userfiles/file/26138368709.pdfIn PDF document text
    • https://777mto.org/contents/files/38947855881.pdfIn PDF document text
    • http://sachybohumin.cz/_cms7/kcfinder/upload/files/zowuborosejefirukup.pdfIn PDF document text
    • http://csigikes.hu/admin/fck_upload/file/71208825213.pdfIn PDF document text
    • http://celox-st.hr/sites/default/files/fck/file/6898812166.pdfIn PDF document text
    • https://menuvinowit.weebly.com/uploads/1/3/5/3/135320060/a415ee503c792fe.pdfIn PDF document text
    • http://ambcavallon.eu/userfiles/files/baraxazubuzawoxifape.pdfIn PDF document text
    • https://metrosecuritynepal.com/assets/userfiles/files/linugowigerupez.pdfIn PDF document text
    • http://pneuservischrudim.cz/files/file/vajezives.pdfIn PDF document text
    • https://molusodufewi.weebly.com/uploads/1/3/4/4/134465793/fatetukeza.pdfIn PDF document text
    • http://spartapr.com/images/upload/file/sojezametujure.pdfIn PDF document text
    • http://sushi-belovo.ru/files/99962981487.pdfIn PDF document text
    • http://santehnika34.ru/images/file/38053191035.pdfIn PDF document text
    • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/8mi8q8mapombk50bksjl7nfcu2/kofuputopinewilawobito.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_off0000e8a8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e8a8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A8 17912 bytes
SHA-256: d00649634274377b8b759585af1c80649f31f76b8ab4f5b957e9eddf7ba74367
font_01_sfnt_off000117aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117AA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012fc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FC1 11360 bytes
SHA-256: bcefc01dd1561cea6d686fc28a0a310a3a16fe3673b3dc44b31b2779216e8a2c