Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d86c61c365c61ee…

MALICIOUS

PDF

74.5 KB Created: 2021-09-08 17:32:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 038a9a4cf126fd42374e4873c5195e4b SHA-1: 203fd1c552bb65933fa403e1252fe7f5038d87ee SHA-256: 5d86c61c365c61ee57fb33b0f1fe2391c48de2359d153dbba94bf81df8b0f594
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://liebherr-tr.com/userfiles/file/8587363875.pdf In PDF document text
    • http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/39458594439.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea1607bf72---menopesopulozobofi.pdfIn PDF document text
    • https://torbay.ru/images/uploads/file/pesofojolivimisup.pdfIn PDF document text
    • https://dolupin.com/calisma2/files/uploads/tovodem.pdfIn PDF document text
    • http://yuhenganquan.com/userfiles/file/20210907135725_652649141.pdfIn PDF document text
    • https://nayyaralidada.net/alpha/ckfinder/userfiles/files/nekikerimivovogoju.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16137a7a4d11bd---55878686592.pdfIn PDF document text
    • http://dongduong.net/Images_upload/files/29988617775.pdfIn PDF document text
    • http://alanaf.ru/userfiles/files/82532230757.pdfIn PDF document text
    • https://mimpi1pusat.com/contents/files/wagutul.pdfIn PDF document text
    • https://golf-tout-terrain.com/publish/page/file/12171274394.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1612eec83789f5---viwunotul.pdfIn PDF document text
    • http://szyqjsj.com/UploadFile/file/20210908222210529.pdfIn PDF document text
    • http://bapassamarinda.id/assets/ckfinder/core/connector/php/uploads/files/53865731252.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/825ebc121655dc6a570f6e5f56c8abf6/burilelobezumabisu.pdfIn PDF document text
    • https://cobrawire.com/userfiles/files/dibakowuge.pdfIn PDF document text
    • http://a899.net/userfiles/file/xobimafubesusakap.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16133c035723a4---xodegewiluvivafasenuk.pdfIn PDF document text
    • https://taiwancy.com/app/webroot/userfiles/files/fusimorodoviridodolujifab.pdfIn PDF document text
    • https://rts-wm.com/ckfinder/userfiles/files/sixino.pdfIn PDF document text
    • https://ww150004.linebot.net/upfile/files/20210906232412.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=packet+tracer+6.2+tutorial+pdfPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC46 18044 bytes
SHA-256: 82c03b9b5064b444d94854c65bf96a6e5a306704e50fbd28bc07324151db2e3d
font_01_sfnt_off0000eae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000102f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F9 10888 bytes
SHA-256: 49c21f0ca5b76a42734f2919fc8ee283a11754551581a785d4032a25d95601cf