Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8ad3399ec7afa2…

MALICIOUS

PDF

68.9 KB Created: 2022-01-01 01:01:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 683646e234957cba686b1e1f14a2576a SHA-1: c80ec1f62e8518760d388264537075895c51be76 SHA-256: aa8ad3399ec7afa2ce0e0e9b49363c200e6b7c521f971997b91e1a64cccf8cc8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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://pielinks.com/UserFiles/file/lukotizejim.pdf In PDF document text
    • http://musicpark-live.de/userfiles/file/bofebelumob.pdfIn PDF document text
    • https://hgd.hr/admin/kcfinder/upload/files/83508808555.pdfIn PDF document text
    • http://jjinline.org/file_upload/file/noganerasamus.pdfIn PDF document text
    • http://jamxmpharmatech.com/upload/files/52791017589.pdfIn PDF document text
    • http://traktorpulling.de/ablage/userfiles/files/gelojobuwod.pdfIn PDF document text
    • http://misterholidaysanprisco.it/userfiles/files/26098699107.pdfIn PDF document text
    • http://pataibicaj.hu/userfiles/file/wexagi.pdfIn PDF document text
    • https://tradingcall.in/ckfinder/userfiles/files/89273727347.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619139ca7d21c---famavoti.pdfIn PDF document text
    • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136bcee59100---pudosilidesip.pdfIn PDF document text
    • https://commonlawhouse.in/userfiles/file/xilixizurepodisojapura.pdfIn PDF document text
    • http://adabaskimerkezi.com/upload/file/50588686058.pdfIn PDF document text
    • http://razzledazzleevents.in/userfiles/file/24604016167.pdfIn PDF document text
    • http://96stone.ru/userfiles/file/gejaru.pdfIn PDF document text
    • http://daming-school.com/userfiles/file/63157972734.pdfIn PDF document text
    • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/be85b18f06fda0a867fb5008c8850740/77208311410.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/a2k93eb3p8aorqpfabbrp4b46k/77224323300.pdfIn PDF document text
    • http://tunesistudio.eu/userfiles/files/xonuzigebebonume.pdfIn PDF document text
    • https://bloodyofficeadmin.underguide.com/upload/userfiles/file/76270293175.pdfIn PDF document text
    • https://vjlabor.pitscovn.com/uploads/Upload/files/91212070831.pdfIn PDF document text
    • http://hbisan.com/userfiles/file/wojapedidivajerirure.pdfIn PDF document text
    • https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/ronerurenu.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/RhDyTiV0TgQ/uplcv?utm_term=telecharger+asphalt+7+heat+gratuit+pour+androidPDF 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_off0000a84a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA84A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000bee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEE9 17340 bytes
SHA-256: 3d290fab156e3b970832098c83632f60beb0079808323dc7af0fc9431e796373
font_02_sfnt_off0000eb83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB83 10904 bytes
SHA-256: f182a1e97189cfcba3d9db1bbebfe9ee50c222d0e128e319c23970cf58af7b60