Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc28cee214eaa20…

MALICIOUS

PDF

91.9 KB Created: 2021-09-09 20:14:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: bc7e61c6ce6e51c23990d54d6957cdd2 SHA-1: 88015ea8386b881bb3b2295130f54c203b17ce7a SHA-256: 1dc28cee214eaa20b9c2d85fcdfb5252cac42a228de92efb1ac0baed9822c61b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9906

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lmalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/68056274600.pdf In PDF document text
    • http://marthomaiticherukole.com/userfiles/file/wakige.pdfIn PDF document text
    • https://curtain.jinware.com/upload/files/23788244707.pdfIn PDF document text
    • http://compagniaviaggi.gattinonimondodivacanze.it/themes/userfiles/files/modedumejifusev.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/68fcf19510af028b944323ad563dab9f/gibikevugonotidekapubaji.pdfIn PDF document text
    • http://inbjnews.com/data/cheditor/0603/files/volegolevivasoro.pdfIn PDF document text
    • http://miryangpension.com/FileData/ckfinder/files/20210908_0C63F8A01442B84A.pdfIn PDF document text
    • http://jainfarms.com/uploads/84034344040.pdfIn PDF document text
    • http://ettorebelfioreliutaio.it/userfiles/files/11727833198.pdfIn PDF document text
    • http://dagmare.de/userfiles/file/suwiwoluba.pdfIn PDF document text
    • https://pasarant0g3l-turbo-h1t.com/contents/files/kamufena.pdfIn PDF document text
    • http://qianshunqs.com/admin/upload/bitanuravemuvenison.pdfIn PDF document text
    • http://turchifiltri.com/userfiles/files/letifezavefo.pdfIn PDF document text
    • http://dgjinhak.kr/DATA/upload/files/202109020708546665.pdfIn PDF document text
    • http://dsagco.com/Upload/file/kediwoxajumadofal.pdfIn PDF document text
    • https://consurs.ro/ckfinder/userfiles/files/tudagojazuri.pdfIn PDF document text
    • https://isitekmuhendislik.com/userfiles/file/78728726432.pdfIn PDF document text
    • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1612e9a5d3fdd9---58465557526.pdfIn PDF document text
    • http://vividconcept.in/userfiles/file/walufujuxuliduzezu.pdfIn PDF document text
    • https://triosms.com/userfiles/file/jigekikafumibadanugovew.pdfIn PDF document text
    • https://kit-veron.my/ckfinder/userfiles/files/womoj.pdfIn PDF document text
    • http://antropolog.ru/userfiles/file/16773580897.pdfIn PDF document text
    • https://bomnuocebara.com/quangbasanpham/app/webroot/upload/image/files/14573938825.pdfIn PDF document text
    • http://ctcinsulator.com/uploads/file/75669870607.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/80afd8bef28851e15ea8e1a1f45a335b/5053709181.pdfIn PDF document text
    • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/7332150ff55db7a7aa04bc9fe28f5325/89237525696.pdfIn PDF document text
    • https://pima-alarms.net/slicice/file/87255580324.pdfIn PDF document text
    • https://anakmeong.com/contents/files/jokufozo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=caring+words+that+start+with+oPDF 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_off0001022a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1022A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011a41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A41 10468 bytes
SHA-256: 16b6a9d5f93981483c79fde58b1ca1d5323f9111ede80fb38d8ed7157389c7bd
font_02_sfnt_off000131d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131D1 18584 bytes
SHA-256: 8c7d519a3d33f1c2a042eaa4aea208283de57ff8459ae2d6f95d433c796f38ad