Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f63a76879f929a0…

MALICIOUS

PDF

142.2 KB Created: 2022-02-17 01:17:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: afe487b8a1f05e407998c525ed0f6b89 SHA-1: 6f4cbca8e28c003377ca2a35a4f78fff4defbe40 SHA-256: 8f63a76879f929a02a9dab11ebdcc33cee3e19a3838d93c1a1bd5c5c16ba68d0
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8493

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://lazav.co.za/XSRYdR1H?utm_term=gradle+run+jacoco+report PDF link annotation
    • http://kovove-ploty-brany-zabradli.cz/UserFiles/File/27134150435.pdfIn PDF document text
    • https://driftwoodcc.com/userfiles/files/zokobojozowawete.pdfIn PDF document text
    • http://dzirerealtors.com/uploads/dufijedawepilazadepanurod.pdfIn PDF document text
    • http://www.salpasafarit.fi/tiedostot/files/mepuloxaganojadugujafaz.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/161502836638d4---musorabok.pdfIn PDF document text
    • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cfeb612d68c---5259155589.pdfIn PDF document text
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1619769e090b61---85832391719.pdfIn PDF document text
    • http://steelfurniturecn.com/d/files/kujosawerobika.pdfIn PDF document text
    • https://ahreco.com/uploads/news_file/49452804689.pdfIn PDF document text
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614817a2ec9bc---gifopato.pdfIn PDF document text
    • http://agavietnam.com/img/files/64027989230.pdfIn PDF document text
    • http://grandviewheightsalumni.com/clients/79364/File/dozomukusajoreza.pdfIn PDF document text
    • http://naturpix.ch/cmsimages/file/mobopimafiposatebogotuna.pdfIn PDF document text
    • http://cansuyu.org/resimler/files/zutuf.pdfIn PDF document text
    • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618740e6b16ad---51494122422.pdfIn PDF document text
    • http://rjt1.org/upload/files/begudakozenekan.pdfIn PDF document text
    • http://egresiangus.com/admin/kcfinder/upload/files/52415936452.pdfIn PDF document text
    • https://typeone.com.my/ckfinder/userfiles/files/juvilixik.pdfIn PDF document text
    • https://satybharat.com/ci/userfiles/files/paletulefegiwadigarulawol.pdfIn PDF document text
    • http://studio-orlandini.com/userfiles/files/sezapikosukobuwomatakusi.pdfIn PDF document text
    • http://mibenjamin.com/userfiles/file/82866163260.pdfIn PDF document text
    • http://brilliantsolarpaneling.com/userfiles/file/gepalapuzu.pdfIn PDF document text
    • http://setunari.com/uploads/news/2022/01/06/file/50591337445.pdfIn PDF document text
    • http://secureyun.cn/uploadfile/file///2022021210300591.pdfIn PDF document text
    • https://lenaoyunlar.com/calisma2/files/uploads/pivajaxolosodejetu.pdfIn PDF document text
    • http://deleersnijder-bocaege.be/images/file/70060947932.pdfIn PDF document text
    • https://gonguyenkhoi.vn/upload/files/9260673091.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_off0001c2cc.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001c2cc.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c2cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C2CC 10516 bytes
SHA-256: 7c1e150920ecf65bbe55530ed1d64b03796b8d0bc944360b21a8cf8d99a4fa51
font_01_sfnt_off0001dae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DAE3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0001f1fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F1FE 20688 bytes
SHA-256: ef555fceb7745777563b0a6857ff0d719df348726854c09dd97c57899a8028ef