Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcf737c068bed61…

MALICIOUS

PDF

286.9 KB Created: 2022-01-01 21:05:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 850a4bed0e46382a977439cb79d6afe6 SHA-1: c5a673ab7686cd87b7a3197579dd3b7ea3da9d91 SHA-256: 1dcf737c068bed611166329a61f9051d3f188df6db2b6d72950eb61ad30a230f
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7806

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://kalitelivideoizle.com/resimler/files/wowutilizofideliledalox.pdf In PDF document text
    • https://ibexquimica.com.br/ckfinder/userfiles/files/xalemuradizepesomepixofov.pdfIn PDF document text
    • http://airholic.com/UpFiles/WebEditorFiles/file/piposovisurejodeku.pdfIn PDF document text
    • http://geekladsmedia.com/admin/ckeditor/kcfinder/upload/files/kipimefabirupazax.pdfIn PDF document text
    • https://inprovitargentina.com/ckfinder/userfiles/files/kusezudifuwipejevowaweni.pdfIn PDF document text
    • http://virtuozi.ru/sites/all/sites/virtuozi.ru/files/maratuxi.pdfIn PDF document text
    • http://malir-naterac.info/UserFiles/File/wejosamoximowe.pdfIn PDF document text
    • http://filmovani.eu/img-content/files/xiliwotawo.pdfIn PDF document text
    • http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161be209beef08---26604114605.pdfIn PDF document text
    • http://j1medical.com/uploaded/file/lasipenepabipas.pdfIn PDF document text
    • https://propactionvehiclesuk.tv/userfiles/files/dewagu.pdfIn PDF document text
    • https://mpksieradz.pl/upload/file/tezaromamu.pdfIn PDF document text
    • https://xedulichhaiphong.vn/images/news/files/vususazele.pdfIn PDF document text
    • https://www.channeloflove.com/ckfinder/userfiles/files/98636314286.pdfIn PDF document text
    • http://cansuyu.org/resimler/files/13449375222.pdfIn PDF document text
    • http://turar-mussin.com/userfiles/File/23490250051.pdfIn PDF document text
    • http://luxcottage.ru/stroykamen/userfiles/file/24318525945.pdfIn PDF document text
    • http://songdolandmarkcity.com/userfiles/file/4082482610.pdfIn PDF document text
    • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/jusozezemurufeju.pdfIn PDF document text
    • https://yenhuy.vn/upload/files/43114610605.pdfIn PDF document text
    • http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210921085852349662trgp89.pdfIn PDF document text
    • https://bandai-k.com/userfiles/file/xedunefapinazuwosufip.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/23D8k0Ec_6w/uplcv?utm_term=poulan+chainsaw+manualsPDF 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_off00041155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41155 10352 bytes
SHA-256: 2a53d9203c107f74d617d1ed1e172f6dac62b6f0d353b7c1aa733ace233ce9c5
font_01_sfnt_off00042888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42888 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00043f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43F27 17420 bytes
SHA-256: c9baf463327f60df01d568ed47eeb8382d8e8f1f47fb7b1da2cf06e11599c1f6