Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c8a1c9c3835854…

MALICIOUS

PDF

471.2 KB Created: 2022-03-06 03:35:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 73ce8adb7019ac757feb11f564715471 SHA-1: bae29a74a8a9d70bc6770e2a4f15bda5bccbcd30 SHA-256: c0c8a1c9c383585467b4098e895f63ece6252167b7a9c71d0066836193094afc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3460

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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 http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216836375503---2029503025.pdf In PDF document text
    • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206f5fcc3c77---pakexefo.pdfIn PDF document text
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/64244b0c063c1bc1b2da028892942805/goxevefowejonufifi.pdfIn PDF document text
    • http://edukoc.net/userData/ebizro_board/file/rafasexosojowomuz.pdfIn PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16219e9b6402e0---rifipawewatagoxorixedub.pdfIn PDF document text
    • http://kpglearningbox.com/assets/kcfinder/upload/files/89200437762.pdfIn PDF document text
    • http://www.cpiequipos.com/assets/images/user_files/files/memevozegemem.pdfIn PDF document text
    • https://ibbfvhn.org/recursos/kcfinder/upload/files/titinoxel.pdfIn PDF document text
    • https://jnvhardoi.org/ckfinder/userfiles/files/14213520885.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/70706921495.pdfIn PDF document text
    • http://mamolenasnc.it/userfiles/files/42100104341.pdfIn PDF document text
    • https://beyondmywalls.com/data/files/kapabuso.pdfIn PDF document text
    • http://ettis.net/kcfinder/upload/files/wugasidawipusugaxirozubu.pdfIn PDF document text
    • https://nrsa.tj/nrsa_system/ckeditor/kcfinder/upload/files/64525610246.pdfIn PDF document text
    • https://www.caissedesecolesdu5eme.fr/backoffice/ckfinder/userfiles/files/wavupitaw.pdfIn PDF document text
    • http://nakakinpump.kr/fckeditor/upload/file/97763130433.pdfIn PDF document text
    • http://www.procuradoresgipuzkoa.com/js/ckeditor/kcfinder/upload/files/66721284509.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/783b85b7192aeccfcf1409865cce4415/13140132833.pdfIn PDF document text
    • https://www.iccct21.scrs.in/kcfinder/upload/files/zanemef.pdfIn PDF document text
    • https://mi-stores.com/basketballtotaal/images/editor/file/devizuzavabugulafu.pdfIn PDF document text
    • https://edubox.mn/uploads/users/0/files/88643280397.pdfIn PDF document text
    • http://kimwendelldesign.com/ckfinder/userfiles/files/jawipixavufefez.pdfIn PDF document text
    • https://dursunguney.com/userfiles/files/71428480424.pdfIn PDF document text
    • http://creaorganization.com/depo/sayfaresim/file/43467431530.pdfIn PDF document text
    • http://clinical-pain.com/pds/userfiles/files/goxekofogu.pdfIn PDF document text
    • https://hometeamcorp.com/images/usr/zenagaduturewefo.pdfIn PDF document text
    • http://sgd42.ru/userfiles/file/99855139607.pdfIn PDF document text
    • http://nexxstep.nl/userfiles/file/fesozix.pdfIn PDF document text
    • https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/1620787c34b0ff---21140597281.pdfIn PDF document text
    • http://massintech.ru/img/outer/files/durupofexamedebomagoso.pdfIn PDF document text
    • http://tourtraveltalk.com/app/webroot/js/kcfinder/upload/files/81230008542.pdfIn PDF document text
    • https://coconut.hu/userfiles/file/55680037133.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1620af112b91d4---gepisataliwizorubanijo.pdfIn PDF document text
    • http://www.aippc.net/kcfinder/upload/files/15825478009.pdfIn PDF document text
    • http://tehnaplus.mk/tehnaplus/kcfinder/upload/files/teratudal.pdfIn PDF document text
    • http://kagoshimakojintaxi.com/userfiles/file/kirawobigaxavenuredo.pdfIn PDF document text
    • http://sage-chem.com/image/files/20220212_195229.pdfIn PDF document text
    • http://senyemetal.com/data/upload/file/58467778625.pdfIn PDF document text
    • https://cmsmda.neotebet.de/uploads/all/sigozenojoziwubizoluzili.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=interview+questions+and+answers+for+administrator+positionPDF link annotation
    • 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_off0006e8fd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006e8fd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006e8fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8FD 10960 bytes
SHA-256: 7606ad9431312f5a1a40a1ab4d470a1800d83552caebc846c5200c1d60c718c8
font_01_sfnt_off00070242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70242 19492 bytes
SHA-256: 46a3153b096dfae3b09c89323208422682bc8a734a719043858eab13d78eac8c
font_02_sfnt_off00073519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73519 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9