Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af982a44a0f7be0…

MALICIOUS

PDF

178.2 KB Created: 2021-12-01 14:51:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 6a74d27a8b01f082054732a652fb9604 SHA-1: 7684da07370e9a98711d5032da5e00403720c40a SHA-256: 4af982a44a0f7be0fbab5cbe1aa74a5a4a34d428ba750a40c878145e6bf78e1b
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9228

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pixomot.ru/uplcv?utm_term=pokemon+platinum+rom+zip+file+downlo PDF link annotation
    • https://www.info-service.com.tw/plugin/ckeditor/ckfinder/userfiles/files/fekobekoxizukuti.pdfIn PDF document text
    • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/8547af88197a5da24f25df5db8f619b0/fuzesiwiwakifekogesiv.pdfIn PDF document text
    • https://ww150003.linebot.net/upfile/files/20210905131239.pdfIn PDF document text
    • https://lajovisena.com/gallery/file/soxoromidikujolemularud.pdfIn PDF document text
    • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/5dfce45146a7f5f420cd00d9efe49436/50803730208.pdfIn PDF document text
    • https://anukulagrotech.com/ci/userfiles/files/37880111657.pdfIn PDF document text
    • http://avvocato-callegaro.it/public/file/ganige.pdfIn PDF document text
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1616397470d7fb---bigegekuluzif.pdfIn PDF document text
    • http://kozszemle.hu/uploads/files/7585806673.pdfIn PDF document text
    • http://www.abcklima.hu/data/editorfile/20321930070.pdfIn PDF document text
    • http://indyskischool.com/ckfinder/userfiles/files/9129802062.pdfIn PDF document text
    • https://lakepulaski.com/cms_uploads/file/kunafojalo.pdfIn PDF document text
    • http://doudou.tw/userfiles/files/20328400371.pdfIn PDF document text
    • http://pilot-market.ru/new/files/file/xidizuda.pdfIn PDF document text
    • http://oasis-inwaste.asia/files/file/nigugevibef.pdfIn PDF document text
    • http://xn--80aafjbaeihgganggf9ajkncugh2a.xn--p1ai/pict/file/2147937563.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/ae54e96a5d9dd1544b65605dc972fd0c/xidegarakotawuvilufu.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16190287c2cc03---gejidodos.pdfIn PDF document text
    • https://kokomanis.com/contents/files/46331360051.pdfIn PDF document text
    • https://ikincielinmak.com/upload/ckfinder/files/26595754867.pdfIn PDF document text
    • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/p2233eia54m0osecq3a07ouds6/gafojiwapixejelemaz.pdfIn PDF document text
    • http://candleelectricals.com/uploaded_files/userfiles/files/filuneta.pdfIn PDF document text
    • https://alpinebadmintonacademy.com/ckfinder/userfiles/files/90797414982.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23AB6 22556 bytes
SHA-256: 70f7e6267d2135bc594d9517eb62bfc0d780da1200de3fb6b8cda8c29784aab6
font_01_sfnt_off00027448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27448 16132 bytes
SHA-256: 071bac7a3a90310621307d68123817e30fba7c89f9e5021c4391eb43bd8b9137
font_02_sfnt_off000289c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x289C0 10828 bytes
SHA-256: 6145bb97f24d6667e1f5ebca972136af8f158e5a44ab60ca3ac5c186e26b47ba
font_03_sfnt_off0002a2c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2C9 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336