Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd77b5cee3b699f…

MALICIOUS

PDF

74.4 KB Created: 2021-11-22 21:21:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: ca3e9fa6501a3b6e76e13c3affc45a97 SHA-1: 00b504173e2897c63b6ded91343ba8a0c4d79730 SHA-256: 3dd77b5cee3b699f3e823f4eac4fbcb658721953c87907a247bcb030c1c10fde
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://irlanc.ru/uplcv?utm_term=best+websites+to+find+rooms+for+rent PDF link annotation
    • http://pop-around.com/file_media/file_image/file/69514943033.pdfIn PDF document text
    • http://architettoangeli.it/userfiles/files/sejusukevibupugukatejoja.pdfIn PDF document text
    • http://cerescommoditiesltd.com/Images_upload/files/wuvevupuv.pdfIn PDF document text
    • http://commune-bourre.com/userfiles/file/83856943815.pdfIn PDF document text
    • http://taikenplan.jp/ckfinder/userfiles/files/gigenomujupepumidenafev.pdfIn PDF document text
    • http://seychelles-resort.com/images/blog/file/loxafovaz.pdfIn PDF document text
    • https://bientannamhuy.com/wp-content/uploads/files/bakarupeborufap.pdfIn PDF document text
    • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/j2sntcih3phc3b35b8h8shsin0/livefezizobozeso.pdfIn PDF document text
    • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/jubunafute.pdfIn PDF document text
    • https://garnet-medical.com/userfiles/files/15188412799.pdfIn PDF document text
    • http://topflexsports.com/uploads/25788847770.pdfIn PDF document text
    • http://baigeleather.com/userfiles/file/letowig.pdfIn PDF document text
    • https://promise-land.com/upload/file/gupasavarixigemuv.pdfIn PDF document text
    • https://vpmemorial.net/images/file/55585351919.pdfIn PDF document text
    • https://karate2.cdmedia.pl/userfiles/file/51341381806.pdfIn PDF document text
    • http://rmgoals.com/userfiles/files/52240636459.pdfIn PDF document text
    • https://mrdak.cc/uploadfile/files/muragidid.pdfIn PDF document text
    • http://arcdesantmarti.com/biocop/Images/images-editor/file/dujuku.pdfIn PDF document text
    • https://securincasso-online.nl/ckfinder/userfiles/files/37981340156.pdfIn PDF document text
    • http://kbidc.kr/upload/editor/file/1632034588.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16179039114f52---67340604423.pdfIn PDF document text
    • https://mamap.in/ci/userfiles/files/16354730722.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/h7n5ribamipomna2553tj21uf0/80521961906.pdfIn PDF document text
    • http://www.dkmodels.net/ckfinder/userfiles/files/76215090293.pdfIn PDF document text
    • https://www.shropshirefurniture.co.uk/admin/ckfinder/userfiles/files/59119322658.pdfIn PDF document text
    • 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_off0000c068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC068 17020 bytes
SHA-256: 15e7dba308f9bf92471699d38951f5e15268d0d901f76bedf48da922d0457651
font_01_sfnt_off0000ec99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC99 10584 bytes
SHA-256: 0ea299e04162a9630a9f771005af5e18d0baf4a70352c4cb94eb1a0dadb60b6e
font_02_sfnt_off000104d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104D6 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336