Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e34d3d37a349aee…

MALICIOUS

PDF

85.0 KB Created: 2021-08-19 07:15:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: e16bd8207d4758884de903faf76e6ea6 SHA-1: d43fe577164d371b87ade5d41a5cc20b1b3d8e70 SHA-256: 4e34d3d37a349aee14bf096e26ee616e42e7175be29c6b90f7a4a48cf321c5c6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://pressvaluation.net/userfiles/file/sidavizoziwijilajafusoki.pdf In PDF document text
    • http://baohanhranghm.com/upload/img/files/6641545105.pdfIn PDF document text
    • https://mamap.in/ci/userfiles/files/lojojedifof.pdfIn PDF document text
    • https://asiarsolutions.com/userfiles/file/76433184802.pdfIn PDF document text
    • http://richfieldhighschool1969.com/clients/868116/File/85098765274.pdfIn PDF document text
    • http://bhs1966maui.com/clients/64750/File/89255824578.pdfIn PDF document text
    • http://nuestratierrapremios.com/campannas/file/15234370179.pdfIn PDF document text
    • http://skupka54.ru/upload/m/kutili.pdfIn PDF document text
    • http://dmscsmartlifeblog.com/userfiles/files/jojofofutudajexuvijuwep.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/b9ddf00d1612ddb8101c6802c4704ba7/63921424641.pdfIn PDF document text
    • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/b75nlsimtflj38tfvd8nj1ei5l/zopuko.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/vipejizaji.pdfIn PDF document text
    • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/bde427bc2a815efe8c1d6e9dfc89efdb/33325463114.pdfIn PDF document text
    • http://chretkinia.pl/userfiles/file/gamebojozekugijujozaxowan.pdfIn PDF document text
    • https://shen-su.eu/gfx/userfiles/files/10238872366.pdfIn PDF document text
    • http://charivne.info/images/file/8509649553.pdfIn PDF document text
    • https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/cjvlplm56nldq9lpi2jb0j13cc/88249571524.pdfIn PDF document text
    • http://yuanjen.com/ckfinder/userfiles/files/fufapemirofurame.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/5tte87ss73935np8kdki10bs65/jurevikovawozipapitoseru.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607db37b68663---denamiwotupew.pdfIn PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/2918bfd3d7b904facddb192c50bfa3b4/35565107374.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fk09baqn6h0oksncpogruip8c3/17744121128.pdfIn PDF document text
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4e0ac24ef---68686649866.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=how+much+do+tuff+shed+installers+makePDF 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_off0000e5ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5EC 17888 bytes
SHA-256: 798f181fbf81c1bf55930ea28b087406244b0c05037938481eba0ea33f912121
font_01_sfnt_off000114ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114EC 11012 bytes
SHA-256: ac86ca85bf4e63e754b30a1ff807cf6ba598e4382105d4d66def96060e2b6271
font_02_sfnt_off00012e5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E5A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1