Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2381a87a57082d…

MALICIOUS

PDF

73.2 KB Created: 2021-11-30 22:07:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: b260b7b1029ba6402d9325c64cf23057 SHA-1: fe17a847e8c333fda91e35689efb32cde691eb9c SHA-256: af2381a87a57082d3c2a29d215409eecb05a43a494e9919c711c29bed6f1139b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9909

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/161757aa4c4b2d---87224006818.pdf In PDF document text
    • https://mclandpin.com/calisma2/files/uploads/72580789655.pdfIn PDF document text
    • http://hermanosgolbano.com/admin/fckeditor/editor/filemanager/connectors/phpfile/54663873301.pdfIn PDF document text
    • http://qianxi.cn/filespath/files/20211028025423.pdfIn PDF document text
    • http://piri-piri.pl/ckfinder/userfiles/files/woguxeguxuz.pdfIn PDF document text
    • http://babijie.com/upload_fck/file/2021-9-12/20210912045620169197.pdfIn PDF document text
    • http://twtqedu.com/userData/ebizro_board/file/danomotevokunizulivajipa.pdfIn PDF document text
    • https://vietnam-pump.com/userfiles/file/zebekagegurajolodagigitu.pdfIn PDF document text
    • http://studiofapas.it/userfiles/files/39103919290.pdfIn PDF document text
    • http://karimeh.com/public/userfiles/file/31900702879.pdfIn PDF document text
    • https://migger.dk/userimages/file/jepewazukoxumupiwisa.pdfIn PDF document text
    • https://myparrotfood.com/user_files/files/bimok.pdfIn PDF document text
    • https://pernambucoimortal.com/imagens/files/93542304911.pdfIn PDF document text
    • http://radyoislam.com/resimler/files/94239878580.pdfIn PDF document text
    • http://quangcongluc.com/upload/files/57200570549.pdfIn PDF document text
    • https://go2germany.ru/files/file/vegim.pdfIn PDF document text
    • http://gzcaifeilai.com/ckfinder/userfiles/files/202109020253391727.pdfIn PDF document text
    • http://zmz72.ru/files/file/88898694029.pdfIn PDF document text
    • https://workinhotel.com/upload/fckfile/89960547090.pdfIn PDF document text
    • http://duet-czluchow.pl/userfiles/file/fudobaxotonobun.pdfIn PDF document text
    • http://chiesamadremarsala.eu/userfiles/files/desosepipezesumuli.pdfIn PDF document text
    • https://ooo-kenk.ru/userfiles/file/4065281476.pdfIn PDF document text
    • http://xn----7sbqwxdbhblh2h.xn--p1ai/data/file/60147154612.pdfIn PDF document text
    • http://realtor-madrid.com/uploades/fckeditorfile/20820639643.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1617530d72e3e5---17498406661.pdfIn PDF document text
    • http://bdn10.cz/files/file/60817233225.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/HTGXzuRVGb4/uplcv?utm_term=mfc+token+generatorPDF 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_off0000beb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEB9 10288 bytes
SHA-256: c112c2e77d4977c761f73644ee918e0d333b2ef12e7f8038ba68e484cac2a34c
font_01_sfnt_off0000d61b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD61B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000ecba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECBA 16292 bytes
SHA-256: 8cc961a8d3809b46bc862c05187c0c6da3091d84c4fca74bdd5033ac8d78e5c4