Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd78fad42bb99a23…

MALICIOUS

PDF

79.6 KB Created: 2021-09-10 04:11:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: fe339dff7d20b5d8864666bd9d5a2a94 SHA-1: 6fb6979f4f38bbbcc525b79c3cd2ac7175f46a53 SHA-256: cd78fad42bb99a230ac7dd577b53a665705206a97d59d5f3df5a220b6ef9f8f9
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://fereshtegan.net/basefile/fereshtegannet/files/jojewalotaximilavape.pdf In PDF document text
    • https://hgqq.hk/tony/churchofgod/ckfinder/userfiles/files/vowupigugetazonafemirur.pdfIn PDF document text
    • http://studiotecnicopetrillo.eu/userfiles/files/mepifi.pdfIn PDF document text
    • http://saringkarnwood.com/UserFiles/file/91098985046.pdfIn PDF document text
    • http://pxmonastery.org/CKEdit/upload/files/62382188561.pdfIn PDF document text
    • http://fst-uinsu.net/userfiles/files/bowamutaro.pdfIn PDF document text
    • https://renebeumer.nl/userfiles/file/xikomonunitovanifa.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/681b4e6737f532c8a3b88f57b1c20905/8403863984.pdfIn PDF document text
    • http://handlpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vosuxomujexo.pdfIn PDF document text
    • https://termofriz.rs/files/witimazadamugikonetas.pdfIn PDF document text
    • https://xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/61577296680.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ihvr038hj8q9gu03et9m85vt57/21157439547.pdfIn PDF document text
    • http://marinaxaraes.com.br/ckfinder/userfiles/files/mutidevowad.pdfIn PDF document text
    • https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/zazosarebake.pdfIn PDF document text
    • http://garage-fuji.jp/js/upload/files/zogapofenepuxidoxo.pdfIn PDF document text
    • https://betenrealestate.com/sites/default/files/file/47712837771.pdfIn PDF document text
    • http://crestviewshopping.abwingsmd.com/uploads/files/25637653990.pdfIn PDF document text
    • http://tdvvietnam.vn/webroot/img/files/74232592200.pdfIn PDF document text
    • http://uptindia.com/newsimages/file///70217819682.pdfIn PDF document text
    • http://vankouwenenmastop.nl/UserFiles/file/boboferukafusu.pdfIn PDF document text
    • https://okinawa4d.com/contents/files/48437109223.pdfIn PDF document text
    • http://eva.am/files/e3add980b3eea65f.pdfIn PDF document text
    • http://baominhlabors.com/upload/files/12815524945.pdfIn PDF document text
    • http://pilot-market.ru/new/files/file/bivodifomejapuvovuromu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=successful+fce+10+practice+tests+new+2015+format+answersPDF 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_off0000cfb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFB9 17448 bytes
SHA-256: f13f0b675df85dd52457a8e5b9528d29eb9f433d437b2c2390db6c853e851b28
font_01_sfnt_off0000fd6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11582 11332 bytes
SHA-256: be40613bbf649b3ade6bb98fe4fae71775674606cbcac4a713364481b1b5a2c9

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