Malicious PDF — malware analysis report

Static analysis result for SHA-256 0803a6fdd54d3b90…

MALICIOUS

PDF

71.8 KB Created: 2021-11-28 23:21:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-21
MD5: ee4d6ee47055407892886820c03dcbd0 SHA-1: d73034f8a8fad4b9b8e0b66fd374607ec085f132 SHA-256: 0803a6fdd54d3b90397ca1b75637a3f2182e184c7cde89e17f260059b0a967c2
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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 http://soft-pro.hr/upload/datoteke/modipirotimokoxagonafu.pdf In PDF document text
    • http://bjsixiang.com/jingkelun/userfiles/files/20211003124523.pdfIn PDF document text
    • http://taiwan-tsai.com/upload/files/23236548584.pdfIn PDF document text
    • http://fu-xin.tw/uploads/files/202110100223522992.pdfIn PDF document text
    • https://efnnma.org/files/file/rusowitesolevewexesa.pdfIn PDF document text
    • http://mydreamtuscanwedding.com/editor_up/pezejez.pdfIn PDF document text
    • https://lawyerupsmart.com/tempimg/file/74029483569.pdfIn PDF document text
    • http://tiszaikaland.hu/upload/file/kidugixemixojetogudefogi.pdfIn PDF document text
    • https://mccartha-cobb.com/userfiles/files/71150906290.pdfIn PDF document text
    • https://vibangnhadat.com/uploads/files/16847668138.pdfIn PDF document text
    • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618a81d8d7a35---saxudalubibotigufu.pdfIn PDF document text
    • https://avenue102.com/uploads/file/23076634424.pdfIn PDF document text
    • http://wskinbody.com/data/boardData/files/12908912110.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/81778417327.pdfIn PDF document text
    • http://mh-gartengestaltung.de/userfiles/file/nirid.pdfIn PDF document text
    • https://kmedebiyatgunleri.com/ckfinder/userfiles/files/26790418566.pdfIn PDF document text
    • http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20211023061224.pdfIn PDF document text
    • http://cristal-in.fr/userfiles/file/86223229371.pdfIn PDF document text
    • https://cissud.it/uploads/ck_editor/files/53887018890.pdfIn PDF document text
    • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/161538ee490bf3---19027374811.pdfIn PDF document text
    • http://dafangtour.com/fckeditor/userimages/file/simepawom.pdfIn PDF document text
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613d8b7160b63---vozem.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/oscUj7J0Gjw/uplcv?utm_term=insurgent+2015+dual+audio+moviePDF 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 extracted file (font_00_sfnt_off0000b3ea.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b3ea.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b3ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3EA 17276 bytes
SHA-256: 92fe17ad87aa8c3d5ba7b6d7102fc908b84b53ff00de7f84480c2485b9a178c5
font_01_sfnt_off0000e130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE130 11136 bytes
SHA-256: 94e914752a51005c068d5f0b569c542d6c122e82e056dbc58633be35b1678d46
font_02_sfnt_off0000fb17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB17 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336