Malicious PDF — malware analysis report

Static analysis result for SHA-256 de462e27c71b69f7…

MALICIOUS

PDF

161.3 KB Created: 2022-03-12 08:49:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: a997dbc0057d40a5736c53245e2f7370 SHA-1: a06415136cc691d01d3c5c75f1c9095b1bfa3f75 SHA-256: de462e27c71b69f7721a73e129c716f1eb6eb0cac9cbae6b41c7e915ca5e33ad
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs, many of which point to disposable hosting or compromised WordPress sites, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution through these links. No scripts were extracted, but the primary attack pattern relies on social engineering via the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8330

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://ragaz.co.za/XSRYdR1H?utm_term=ansible+template+if+else+if PDF link annotation
    • https://www.profiexpo.ru/js/kcfinder/upload/files/rabibijo.pdfIn PDF document text
    • http://longarmquiltacademy.net/fckeditor/userfiles/file/kefoluvosebimekufemepojo.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16213980602b48---67000418177.pdfIn PDF document text
    • https://comobrew.illomoc.com/newsite/images/user_uploads/file/60280735024.pdfIn PDF document text
    • https://lensmam.com/userfiles/file/rokanov.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/5ad9b146a3c9cf6df27581c25aac4e9e/63880501551.pdfIn PDF document text
    • http://prunay-en-yvelines.fr/ckfinder/userfiles/files/85364794875.pdfIn PDF document text
    • http://apexemergencias.com/images/files/vukefiwibegexalimerag.pdfIn PDF document text
    • http://tamlaproject.com/userData/board/file/fetikatuvulevekuj.pdfIn PDF document text
    • http://svarovani-tig.cz/userfiles/file/vafalaxaxagorazolosizewa.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/lulakevav.pdfIn PDF document text
    • http://www.hz-kontejnery.cz/ckfinder/userfiles/files/38423286975.pdfIn PDF document text
    • http://y-mirai.biz/js/kcfinder/upload/files/63599364996.pdfIn PDF document text
    • http://moutierrozeille.fr/userfiles/file/28461749562.pdfIn PDF document text
    • http://metall-press.ru/files/watejez.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fee7327b442---mafusemivuwosivepotidup.pdfIn PDF document text
    • http://cloudinfo01.smartevolve.com/images/ckeditor/files/35108877602.pdfIn PDF document text
    • http://hengelo.scholenkeuze.nl/UserFiles/files/9555582610.pdfIn PDF document text
    • https://www.kidilangues.fr/js/kcfinder/upload/files/sixidibejon.pdfIn PDF document text
    • http://officegate.biz/admin/fck_upload/file/41367407094.pdfIn PDF document text
    • http://sgyscom.com/upload_fck/file/2022-2-25/20220225052322857675.pdfIn PDF document text
    • http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/151609067121.pdfIn PDF document text
    • http://michalpavlicek.com/uploaded/file/5571263278.pdfIn PDF document text
    • http://weifong.tw/fckimages/file/66252719072.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1620ad4984bf70---50414038489.pdfIn PDF document text
    • http://dps-bayside.com/uploadfile/editor/file/20220227004349172.pdfIn PDF document text
    • http://ecohouse-lab.de/userfiles/file/69030627982.pdfIn PDF document text
    • https://sapporopools.com/contents/files/61948255138.pdfIn PDF document text
    • http://pyramidplaster.com/file_media/file_image/file/leviv.pdfIn PDF document text
    • http://fusen-es.info/yamituki-n/uploads/files/kavig.pdfIn PDF document text
    • https://reaga.net/js/ckfinder/userfiles/files/53745029573.pdfIn PDF document text
    • http://avesta-hmora.boj.se/uploads/userfiles/files/35777777254.pdfIn PDF document text
    • http://barcodeegypt.com/public/kcfinder/upload/files/kebogusubupomilu.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_off0002140a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002140a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002140a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2140A 10420 bytes
SHA-256: 05bdc1e05e79b7e954f48de394f13218c22806d3836cce6c5b6d2e663c88e71d
font_01_sfnt_off00022b70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22B70 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0002428b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2428B 19368 bytes
SHA-256: 30d7aed91fe793fcb8aad490a0d5d65f5caf74741f7be5fa4b8679dffe3a44bd