Malicious PDF — malware analysis report

Static analysis result for SHA-256 55047f77be57b926…

MALICIOUS

PDF

167.0 KB Created: 2022-03-03 21:17:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 8492228d0ca6bced7104baa40069fa6b SHA-1: 51a329aa15f7601cb2ab2e01b4dd04b188988fe4 SHA-256: 55047f77be57b926ef0aec125cc2ad9df389afc9a1eb0e1b5830141cbb77e3af
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9440

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://armenia4d.com/contents/files/15604347208.pdf In PDF document text
    • http://dh-cell.com/ckfinder/userfiles/files/nomegoso.pdfIn PDF document text
    • http://thecpg.org/kcfinder/upload/files/48500379092.pdfIn PDF document text
    • https://projektovanje.info/userfiles/file/21774720680.pdfIn PDF document text
    • https://sukienmiennam.com/userupload/files/latelop.pdfIn PDF document text
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16209b1ea26692---rovakewuro.pdfIn PDF document text
    • http://chiangmai-esc.net/user_img/files/ravasuva.pdfIn PDF document text
    • http://chipmax.in/chipmax/ckfinder/userfiles/files/3567997633.pdfIn PDF document text
    • https://heritran.vn/uploads/news_file/figutisezogejakewebin.pdfIn PDF document text
    • http://parquet-cortes.fr/data/Files/renowopawevebu.pdfIn PDF document text
    • http://kochi-east-rc.com/admin/kcfinder/upload/files/mival.pdfIn PDF document text
    • https://evrenmentese.com/upload/ckfinder/files/lowevuzomobaratab.pdfIn PDF document text
    • http://www.jobsincrete.gr/images/_user_na/file/78013074941.pdfIn PDF document text
    • http://bluestandard.pl/ckfinder/userfiles/files/masakisivimugis.pdfIn PDF document text
    • http://kawarulabo.com/app/webroot/js/kcfinder/upload/files/keliloxifokilegidiwi.pdfIn PDF document text
    • http://hpworld.hu/data/pic/Image/file/97545171525.pdfIn PDF document text
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/162079dca3cfcb---97508248957.pdfIn PDF document text
    • https://ehbo-oostkapelle.nl/userfiles/file/tasimi.pdfIn PDF document text
    • https://jagdrevier.hu/upload/images/file/57686419033.pdfIn PDF document text
    • http://edmo-cars.nl/images/file/bozip.pdfIn PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa1cd0c8e0b---dabizowuz.pdfIn PDF document text
    • http://atlantidaagency.com/kcfinder/upload/files/52577017420.pdfIn PDF document text
    • http://casaperugia.fr/userfiles/file/74327522625.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=carprog+v10.+05+manualPDF link annotation
    • http://afi-dwls.de/upload/files/79750690027.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_off00022cf1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00022cf1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00022cf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22CF1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0002440c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2440C 18072 bytes
SHA-256: 36cef9d4eb2f58ec76e20822e3332e39a723a1595a1961b77970d0dc49060179
font_02_sfnt_off00027372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27372 10676 bytes
SHA-256: e8b8214f664400360ce3db7149c30cbe164dbdaf93fe018991d899ed8916bf1b