Malicious PDF — malware analysis report

Static analysis result for SHA-256 af286e53b917f872…

MALICIOUS

PDF

78.8 KB Created: 2021-10-16 05:01:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 690601bb69da56cb8380a4f841f06f43 SHA-1: 935fa4fbf55b4c59a9e3c0b72985053f4d61698a SHA-256: af286e53b917f872df4d181ad2873c54f17a32c0336b67fb17271a56e3fc14ad
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://csc0311.com/userfiles/file/20210906195624_72ux93.pdf In PDF document text
    • http://datong-travel.tw/upload/ckeditor/files/20210928201040.pdfIn PDF document text
    • http://sevoir.hu/uploads/file/75534043148.pdfIn PDF document text
    • http://mellorymotors.ru/admin/ckfinder/userfiles/files/gaxaromizodelubimitiso.pdfIn PDF document text
    • http://tomboy2.com/images/library/File/takupowafev.pdfIn PDF document text
    • http://elateridae.com/images/FCKeditor/file/kurikisegefokazofaw.pdfIn PDF document text
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16169d082b9384---81571785271.pdfIn PDF document text
    • http://thesecurityguardunion.ca/userfiles/files/50641498490.pdfIn PDF document text
    • http://surestegc.org/documentos/file/rifejarafizusovowubagoj.pdfIn PDF document text
    • https://kompaspt1.com/contents/files/wibivotuvalob.pdfIn PDF document text
    • http://vnos.vn/app/webroot/uploads/files/4353128512.pdfIn PDF document text
    • http://workontext.ru/media/file/81125539792.pdfIn PDF document text
    • https://trystsalonri.com/images/file/28221702839.pdfIn PDF document text
    • https://www.jdconstinc.com/ckfinder/userfiles/files/60191790952.pdfIn PDF document text
    • http://itagqatar.zajeltel.com/itag/file/files/kexagojubukefebijubimegi.pdfIn PDF document text
    • https://vinadesigndanang.vn/uploads/image/files/91668812469.pdfIn PDF document text
    • https://oreopay58.com/ckfinder/userfiles/files/15531050442.pdfIn PDF document text
    • https://millersexpress.com/userfiles/file/58064268185.pdfIn PDF document text
    • http://dieutrimun.myphamkangnam.vn/webroot/img/files/kobizujepuzamifu.pdfIn PDF document text
    • https://groupunsur2.com/contents/files/sesufokafovukonuvibevovu.pdfIn PDF document text
    • https://highlander-inn.com/assets/userfiles/files/pomesazo.pdfIn PDF document text
    • http://fonnepal.org/userfiles/file/63588153377.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/u-9XGpgKpwY/uplcv?utm_term=symptoms+of+high+spinal+fluid+pressurePDF 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_off0000cf21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF21 11236 bytes
SHA-256: 1f5637e1fd230fcf2ade1eb4b60683ab7ec6877baf01776bb2314f7c3a622604
font_01_sfnt_off0000e913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE913 17556 bytes
SHA-256: 94cabe7ee935c3eb4cbbd60a93c2445ca17a8a09d9fb0eab35e466748d8cb469
font_02_sfnt_off000115b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115B1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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