Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2b747881d39ad0…

MALICIOUS

PDF

69.6 KB Created: 2021-10-03 22:51:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: f5c2bc062f6668cbe396be22824188b6 SHA-1: 64da938a37674bf54e5effbb46da245ca6965ba2 SHA-256: af2b747881d39ad062fe3141ff1a773d46600996da69c0778f3939c1280ef601
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://crysiq.ru/uplcv?utm_term=baptism+day+meaning PDF link annotation
    • http://aftckwt.com/uploads/file/nalatirixutomepawamevi.pdfIn PDF document text
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/e9035f70235b7acf2077199c860b6557/63397742737.pdfIn PDF document text
    • https://regaluxiluminacion.com/uploads/assets/file/18746257677.pdfIn PDF document text
    • http://smartraoptics.com/fck_filemanager_upload/file/23598582175.pdfIn PDF document text
    • http://photou.cc/ckfinder/userfiles/files/40804378489.pdfIn PDF document text
    • https://faktxeber.ru/resimler/files/65937987908.pdfIn PDF document text
    • https://laptopserwis.com/app/webroot/media/files/53036938886.pdfIn PDF document text
    • http://acrclubinversores.com/files/galeria/files/10935266507.pdfIn PDF document text
    • https://buildingexpertsdirectory.com/ckfinder/userfiles/files/luwazugagadifisiz.pdfIn PDF document text
    • http://saiprogetti.net/userfiles/files/19326710427.pdfIn PDF document text
    • https://e-motorcycle.tw/upload/emotorcycle/files/71343163529.pdfIn PDF document text
    • https://investmentskillsgroup.com/images/userfiles/file/27221471186.pdfIn PDF document text
    • http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/wetekafa.pdfIn PDF document text
    • http://daydeothe.vn/rich_editor/file/sovakovute.pdfIn PDF document text
    • https://literie-depot.fr/UserFiles/file/nadujefofukofatufojepoki.pdfIn PDF document text
    • https://apra.pl/files/file/42562175956.pdfIn PDF document text
    • https://duproject.com/uploadEditor/files/girutukonapesopigejijoxib.pdfIn PDF document text
    • http://thewellmanteam.com/userfiles/files/29978744290.pdfIn PDF document text
    • https://xn--80aesyq.xn--p1ai/files/file/metozeb.pdfIn PDF document text
    • https://tw-itemaos.com/ckfinder/userfiles/files/kebutafa.pdfIn PDF document text
    • http://varvshistoriska.com/file/kubiputegetulojabire.pdfIn PDF document text
    • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/f7575dc6e8b477b7ce742456b46dc414/vokewofenolorivonirewubi.pdfIn PDF document text
    • http://sirindhorn.net/upload/File/menilawe.pdfIn PDF document text
    • http://netmode.net/app/webroot/uploads/files/tonixatodagakokegunopol.pdfIn PDF document text
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/5276445a18442db9396c87c0305b2f76/35747128040.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_off0000b303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB303 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cb1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB1A 10636 bytes
SHA-256: 2c2c530bd8c66bf6c176b20fcd8d04d2d9597af7dc1558f8a3d8c627f8590364
font_02_sfnt_off0000e349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE349 14788 bytes
SHA-256: a00187dd37fe5cc93d1209c272f20d626b27d3fe1ca80895ea9b6f9fb5c93b7c