Malicious PDF — malware analysis report

Static analysis result for SHA-256 f999039ede5d66a8…

MALICIOUS

PDF

89.5 KB Created: 2021-07-21 06:26:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 42933cb21fa5745593d12d4193df19a5 SHA-1: 18181b58a0df22850227a2ac9dd1cdd6bebc58d5 SHA-256: f999039ede5d66a8bb01a49eac5c524a350137f91dcd0d20cb2905abd3889af8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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 https://die-elke.de/cms/elke_page_files/file/movalarowipemajudita.pdf In PDF document text
    • https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/367d54e397a36ce67a91e5bdeea530c1/funarafipavaninowuxuzi.pdfIn PDF document text
    • http://tochuchoinghi.org/files/84171080898.pdfIn PDF document text
    • http://bjbtrh.com/files/pic/file/23210820011.pdfIn PDF document text
    • https://anakaygame.com/calisma2/files/uploads/73738367579.pdfIn PDF document text
    • http://mail.me.ntou.edu.tw/ckfinder/userfiles/files/20210721_062140.pdfIn PDF document text
    • https://webmenuplus.com/images/file/74020238656.pdfIn PDF document text
    • https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/a4ggfuo4ofnu4eu9uj00trlmlc/44673145698.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/faf61031bda871e784ee139ae89e744a/zikononipasakoxavomirini.pdfIn PDF document text
    • http://bwc.lt/i/wilimalosuxoxupozabe.pdfIn PDF document text
    • http://amctop.com/board_data/editor_img/file/202105250707.pdfIn PDF document text
    • https://iwnta.com/userfiles/file/baziwofiromimonoditubosuz.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16082739b7d003---22356823112.pdfIn PDF document text
    • http://peaceinsrilanka.lk/userfiles/file/3371983182.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/51a1uf6on4vufbk517pmbpagb0/2903692203.pdfIn PDF document text
    • https://cleaner.pl/userfiles/file/16857803066.pdfIn PDF document text
    • http://softtox.com/new/userfiles/file/newaxutej.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16076c324a5733---pagateziguguben.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/362394020.pdfIn PDF document text
    • https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9e52a74b8---goketutigigireni.pdfIn PDF document text
    • http://d4svancouver.com/clients/c/c8/c8601140a4283eb9b700f388a83987a3/File/nemam.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/bd2ee0eea76754dcb2c86d4bcf3e977f/48575225020.pdfIn PDF document text
    • https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/a13a9e48cc84f203bc39782898b32ebc/sijomokutexemosadafurupu.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608751e66001a---38322993228.pdfIn PDF document text
    • http://alexanderkanevskyartistbiography.com/clientMedia/file/93611152668.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=how+many+oz+in+30+mlPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e41a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fc2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC2C 17360 bytes
SHA-256: ffea1a9caf4f86c0261e66dc60a7900e60753d042dd38b26483f4d35a1ddee26
font_02_sfnt_off000129e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129E2 10316 bytes
SHA-256: 7706acd7b03fff88301563607ad0b1291bcc56e2998e2a55883e402b157a840c
font_03_sfnt_off00014117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14117 16168 bytes
SHA-256: 1cfb00680a8a18ef5d5af493cc5b57cfe410abeba37087ee2ecd799c98b61e68