Malicious PDF — malware analysis report

Static analysis result for SHA-256 191de0f52abdd198…

MALICIOUS

PDF

77.2 KB Created: 2021-10-20 07:10:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 9535c071bdd54e641a3d9cd317232b45 SHA-1: 734d2a1ac7ade8357a89a6028d3a19d0af9d9fc7 SHA-256: 191de0f52abdd198f89b60970c079ca8de480587bc961bbf994d0c560850a8fa
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 6

  • 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 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 https://dcimx.com/files/kuximujopibemufefo.pdf In PDF document text
    • http://all-premium.com/user_file/files/85586608424.pdfIn PDF document text
    • http://eva.am/files/c9561972d3b4f34f.pdfIn PDF document text
    • http://booklandbooks.com/userfiles/file/mefobevumeweduseketi.pdfIn PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca809d88a7---judodapapeko.pdfIn PDF document text
    • http://frutapac.es/ckfinder/userfiles/files/77955023939.pdfIn PDF document text
    • https://dasyueshan.org/userfiles/file/vigapanogagelemonu.pdfIn PDF document text
    • https://ilonew.tasksplan.com/userfiles/files/rabavufupikowubaloja.pdfIn PDF document text
    • http://auto-spec.ca/fck/file/76999067254.pdfIn PDF document text
    • http://drdj.friend-match.com/upload/files/96722717583.pdfIn PDF document text
    • http://topbuild.net/content/xuploadimages/file/47442420958.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16143f17c2c055---44843078300.pdfIn PDF document text
    • https://monyetjoget.com/contents/files/35053396446.pdfIn PDF document text
    • http://bygreenpure.com/userfiles/file/67274642021.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142658da3dfc---lagaxiki.pdfIn PDF document text
    • http://imapbook.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/94349030635.pdfIn PDF document text
    • http://dejonghenico.be/sites/default/files/file/begukosuloniwisotasu.pdfIn PDF document text
    • http://noithatnhapkhaugiasi.com/luutru/files/33014530406.pdfIn PDF document text
    • https://dammesliepas.lv/ckfinder/userfiles/files/30993226744.pdfIn PDF document text
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/mge2i85lceeprs5f9qtjg89jnq/murogetozuwow.pdfIn PDF document text
    • http://greenworx.eu/images/uploads/files/jozifijija.pdfIn PDF document text
    • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161647ef209ee1---96375832271.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/D9plVHj2VOU/uplcv?utm_term=what+is+a+meritorious+civilian+service+awardPDF 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_off0000c8e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8E2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e0f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F4 17272 bytes
SHA-256: fc6304beb25abf732cb66f4471f7e9030270f11e75759f60f767b725db89b5fc
font_02_sfnt_off00010db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB3 10880 bytes
SHA-256: 7ba0f3c1deead4777edc3f60bc3a6568ee071b6da118a36181463331782be093