Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8be73f62971edde…

MALICIOUS

PDF

212.0 KB Created: 2022-03-05 23:01:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 36181a2b5f9b1398dac69b3c565112b2 SHA-1: 7173adc58275b2a177777c1cc1fabc470f90c59b SHA-256: a8be73f62971eddebb3a8d6b0f7284dc7dfeb651ec77134df18200959a9f16c1
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6021

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 https://norin.co.za/XSRYdR1H?utm_term=citrine+informatics+funding PDF link annotation
    • http://fujieshubao.com/zk/UploadFile/file/2022021206131273499.pdfIn PDF document text
    • http://www.veedik.net/assets/admin/kcfinder/upload/files/mupajagumesonukutolilu.pdfIn PDF document text
    • https://vida.posilatko.cz/files/wswg/files/nebovi.pdfIn PDF document text
    • http://wittlich-luexem.de/userfiles/file/jozonadusiwawusixulaja.pdfIn PDF document text
    • https://abctranslink.com/ckfinder/userfiles/files/fexalikibutexuzob.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/161feba3995e7b---bezonorajegadipakirar.pdfIn PDF document text
    • https://hungarogun.hu/feltoltes/files/xipurazakowirorup.pdfIn PDF document text
    • http://cokhihoangvinh.com/uploads/userfiles/file/xerewebimavosud.pdfIn PDF document text
    • http://www.mostex.sk/files/articles/file/31263777123.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/gopcpusrbfcpj67g2d8rvue6ih/pabariwukuwe.pdfIn PDF document text
    • https://exam12.menapoint.com/app/webroot/upload/files/67632688509.pdfIn PDF document text
    • http://ciudadaniadesdeelaula.com/kcfinder/upload/files/romixuwamusipakuw.pdfIn PDF document text
    • https://ipssecurityconsultants.com/ckfinder/userfiles/files/xozoximugokuwevu.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fd96606e90c---bivelopudobinutesadenuvor.pdfIn PDF document text
    • http://dxqzx.com/ckfinder/userfiles/files/20220216_124901.pdfIn PDF document text
    • http://saintthomassolapur.org/admin/kcfinder/upload/files/37136947707.pdfIn PDF document text
    • http://fine-cottage.ru/userfiles/file/gekamorewul.pdfIn PDF document text
    • http://ichieh.tw/uploads/files/202202030449584606.pdfIn PDF document text
    • http://provia-events.de/pics/fotos/1/file/35330508981.pdfIn PDF document text
    • http://searchlinkserver.searchlink.org/userfiles/file/lapemijoniw.pdfIn PDF document text
    • http://top-caster.com/userfiles/file/79510991437.pdfIn PDF document text
    • http://albertopizzetti.it/userfiles/files/47075041493.pdfIn PDF document text
    • http://farmaciafoglia.eu/userfiles/files/62731957772.pdfIn PDF document text
    • http://noithattamphuong.com/upload/files/faworuvelogunabipuku.pdfIn PDF document text
    • http://anhuizpyy.com/upload_fck/file/2022-2-13/20220213083306401520.pdfIn PDF document text
    • http://i-mag-ine.com/media/files/28066663359.pdfIn PDF document text
    • https://ij-ph.com/admin/SchoolFiles/files/13962864376.pdfIn PDF document text
    • https://garankuccu.com/upload/fckimagesfile/ae177b01c40b2c997de2d08a5d9c37d0.pdfIn PDF document text
    • http://kammatrans.com/userfiles/files/27623239710.pdfIn PDF document text
    • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/a6cbadcacff2d1257a3baba2356bab3f/wixujovazapikufanexokosog.pdfIn PDF document text
    • http://www.sfainternational.pk/assets/ckeditor/kcfinder/upload/files/gereluwimejedo.pdfIn PDF document text
    • https://herfection.herfection.tw/upload/ckfinder_temp/files/20220305054512.pdfIn PDF document text
    • https://investmentskillsgroup.com/images/userfiles/file/87940097609.pdfIn PDF document text
    • http://pathtojanna.com/userfiles/files/63315653468.pdfIn PDF document text
    • https://fiscconsulting.com/userfiles/file/kerasisor.pdfIn PDF document text
    • http://karimeh.com/public/userfiles/file/jamubitekuvagaduvu.pdfIn PDF document text
    • https://caror.hu/ckfinder/userfiles/files/roneredopanavevobigom.pdfIn PDF document text
    • https://toscanafantastica.com/userfiles/file/fubutuzuwesapeluxesuf.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_off0002c8fe.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002c8fe.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002c8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8FE 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0002e01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E01E 10904 bytes
SHA-256: 6096914c59266c3948139651f0a9b08b74ddc966b2ece52607250aa26ee23f16
font_02_sfnt_off0002f92c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F92C 18560 bytes
SHA-256: b72773aab79aa54d75ed554465f0740d319dddfac76d636defeb6c3dc03fdec0
font_03_sfnt_off000329c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x329C8 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6