Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d5da6414e7020d…

MALICIOUS

PDF

84.4 KB Created: 2021-10-24 00:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: ef67b8de5262dad7062397519231970e SHA-1: 3ee1d2684c64a81e5959792123e8494ee3bec193 SHA-256: c5d5da6414e7020d7e9bdf807e79cdab8ff80fb8091a6340dc5dd044a6670a2c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://cukiernia-waltar.pl/qcms/userfiles/file/wawadem.pdf In PDF document text
    • https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/31059988714.pdfIn PDF document text
    • https://jucariicopilasi.ro/app/webroot/files/userfiles/files/lujozujuwazifig.pdfIn PDF document text
    • http://theponghop.com/upload/files/46257616487.pdfIn PDF document text
    • http://all-premium.com/user_file/files/lulorawe.pdfIn PDF document text
    • https://www.iieng.org/editor/ckfinder/userfiles/files/56971297026.pdfIn PDF document text
    • http://tlcjty.cn/userfiles/aa/file///41534631665.pdfIn PDF document text
    • http://saatgaamkansarasamaj.com/admin/uploads/files/40946829935.pdfIn PDF document text
    • http://igabana.com/upfolder/e/files/20210907140441.pdfIn PDF document text
    • http://trubaopt.ru/content/file/ratopebotele.pdfIn PDF document text
    • http://szguilong.com/userfiles/files/84060912039.pdfIn PDF document text
    • http://saatgaamkansarasamaj.com/admin/uploads/files/mavukolomivivozesenolof.pdfIn PDF document text
    • http://eakqshop.com/ckfinder/images_store/files/duzuzazajorisinola.pdfIn PDF document text
    • http://inruho.ru/ckfinder/userfiles/files/14851524664.pdfIn PDF document text
    • http://metaglas.kr/userData/board/file/zovuzogodapawez.pdfIn PDF document text
    • https://clap-bas.com/userfiles/file/81763684440.pdfIn PDF document text
    • http://domki-kopalino.pl/pliki/rajuredavegagenaka.pdfIn PDF document text
    • https://asesoriagade.com/app/webroot/files/files/90006237708.pdfIn PDF document text
    • http://www.udelimpa.es/ckfinder/userfiles/files/77511909713.pdfIn PDF document text
    • https://gaadalagi.com/contents/files/lijiralunulubukab.pdfIn PDF document text
    • http://tmkb.org.tr/ckfinder/userfiles/files/meregopojitiberumigumij.pdfIn PDF document text
    • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/16154369f21f69---41144242907.pdfIn PDF document text
    • http://entryexpress.online/chapter_images/files/natizuxurirazuvebizelogel.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/u-9XGpgKpwY/uplcv?utm_term=working+with+ms+access+2010+class+8+pdfPDF 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_off0000e13a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF951 11740 bytes
SHA-256: 187d0b3b3bf4f92e829c1a8ed74309b70f920c3da6f47ac867e2abf7ba7ced0e
font_02_sfnt_off00011517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11517 17752 bytes
SHA-256: 5c008a8bb232c6c59541ceb03a221ea8edf249b81bf22ee8d7bf246e54c8c557

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