Malicious PDF — malware analysis report

Static analysis result for SHA-256 552056fce6c4c728…

MALICIOUS

PDF

79.2 KB Created: 2022-04-09 09:34:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: b26d6774d6034d5a29d47123b50a023d SHA-1: 79f5d2079886e7e5d37760b0835a2eb1840346dd SHA-256: 552056fce6c4c728e4f0f101d9e25dcfea91c4d9918e0ef39e1ebf5f8bb1c323
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 critical 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://cafij.co.za/YmrXLWy8?keyword=craftsman%20folding%20compound%20miter%20saw%20manual PDF link annotation
    • https://zabulgaria.org/userfiles/file/doxemu.pdfIn PDF document text
    • http://inter-travel.hu/_user/file/xabilebanikokotuw.pdfIn PDF document text
    • http://pflp-sy.org/assets/js/admin/ckeditor/kcfinder/upload/files/15869547769.pdfIn PDF document text
    • https://www.takaotakano.com/kcfinder/upload/files/mixufafisisutasu.pdfIn PDF document text
    • https://tonirifiw.weebly.com/uploads/1/3/4/4/134468227/f54ddf24be.pdfIn PDF document text
    • https://nebegixemavo.weebly.com/uploads/1/3/4/3/134359619/6643700.pdfIn PDF document text
    • https://wibizoginoj.weebly.com/uploads/1/3/2/6/132681485/5630054.pdfIn PDF document text
    • http://ancient-theater.gr/media/file/17637470109.pdfIn PDF document text
    • https://mufejuraziga.weebly.com/uploads/1/3/0/8/130814984/9fc1fd5272b564.pdfIn PDF document text
    • https://takitech.hu/userfiles/file/22346471739.pdfIn PDF document text
    • http://personalmap.com/UserFiles/files/verajekabujoziru.pdfIn PDF document text
    • https://semagro-msw.ru/pics/images/file/77578749482.pdfIn PDF document text
    • https://vuvuligebefu.weebly.com/uploads/1/3/7/5/137510570/nemokere_bixumaw.pdfIn PDF document text
    • https://www.oabrn.org.br/2017/_ups/files/files/65969925157.pdfIn PDF document text
    • https://tikekukitalil.weebly.com/uploads/1/3/2/7/132712015/1c045f0495c.pdfIn PDF document text
    • https://rimalelor.weebly.com/uploads/1/3/4/8/134857757/1327127.pdfIn PDF document text
    • http://timocomputer.cz/files/file/removatolareniwij.pdfIn PDF document text
    • http://valdhans.cz/userfiles/file/58948672122.pdfIn PDF document text
    • https://www.hippocratio.gr/ckfinder/userfiles/files/30772473046.pdfIn PDF document text
    • https://toxedozopofezi.weebly.com/uploads/1/3/1/4/131453782/sizif_tokasotevodapok_dokofedotitero.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211308f4de63---124935394.pdfIn PDF document text
    • http://bcf-plv.com/kcfinder/upload/files/xigasinovonetarepasemawe.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_off0000cf84.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cf84.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF84 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e79b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE79B 11180 bytes
SHA-256: 05f1db02744b96c287d5ff915a03a1c921c5f5591834675d59e11097b6677fc3
font_02_sfnt_off00010195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10195 17308 bytes
SHA-256: 07a8769bfae707ed2f66541b7651030478f5b6c6fd5b5791f44d285b173ed9e9