Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cea999d64ad2673…

MALICIOUS

PDF

91.1 KB Created: 2021-07-15 12:57:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 8187d78f948ea0e5f0f43d91044ac5d0 SHA-1: 005f7a60f3f486cd6ae3f8f2ae1b58d499e698e7 SHA-256: 6cea999d64ad2673109ce8872705e25890941f5136c2f5168526d478e2c2ce77
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to numerous compromised WordPress sites and other disposable hosting domains. These links likely serve as lures for phishing attacks or to distribute further malware payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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 https://drafthe.ru/uplcv?utm_term=primary+objective+of+business PDF link annotation
    • https://shopabrang.com/images/files/40062347103.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/utvulecpdgk6f2eu40i1j0ftrs/6406148277.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b100708c7---66147004026.pdfIn PDF document text
    • http://www.moyekolodin.com/files/dupileduli.pdfIn PDF document text
    • http://islandpointfl.com/userimages/nitajuzulibomuneka.pdfIn PDF document text
    • http://beytarimcilik.com/admin/editor_resim/file/37345454989.pdfIn PDF document text
    • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e3d1ee21394---19190821025.pdfIn PDF document text
    • http://yousefmaktabi.com/ckfinder/userfiles/files/nozuvopuvepilafumud.pdfIn PDF document text
    • http://cec-intl.ru/app/webroot/files/file/zonaxokijenedozafa.pdfIn PDF document text
    • http://flyingcarpetclementines.com/userfiles/files/kamigazutevaj.pdfIn PDF document text
    • http://travelshops.pl/userfiles/file/tisejaponelefesawixul.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/il78h4th8h18rdptqtdqqge3e5/98836026505.pdfIn PDF document text
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/c6e744c5dfad1337d3eb97739a15d5a8/19537577708.pdfIn PDF document text
    • http://songpinhao.com/userfiles/files/50403403635.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160df6d4d848a1---fobekufas.pdfIn PDF document text
    • http://fullcolorspandoeken.nl/userfiles/file/80435659043.pdfIn PDF document text
    • http://anvlaw.com/userfiles/file/91435099879.pdfIn PDF document text
    • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/1df82841bc3a246989111cdc321f9c6f/sinoviw.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080c8d52f7f4---36694250946.pdfIn PDF document text
    • http://usaoxin.com/userfiles/2021-5/file/71559983232.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/6d17221c711d754aa80e8264c4efe445/15575134680.pdfIn PDF document text
    • https://tdsns.ru/userfiles/file/rokakekatevinilowubus.pdfIn PDF document text
    • http://drapa-technika.cz/UserFiles/File/18291737967.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001039f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1039F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BB6 11000 bytes
SHA-256: ad197fe69fc5e6a823445b220f929e70f9f935958832b2afcd9c5606b16de619
font_02_sfnt_off0001354c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1354C 16216 bytes
SHA-256: f5688eeffef26623d27944a370b218c803f3a2cad1142759f70eed5237557837

Open this report in the interactive analyzer, or submit your own file for analysis.