Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dde1b388ff011f7…

MALICIOUS

PDF

83.6 KB Created: 2021-10-23 21:32:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25
MD5: 184cb456da8077370092d9de5128f6ec SHA-1: 960b109bb878fc50c663b52a96071f5513ab0d33 SHA-256: 3dde1b388ff011f716b3e4950eb770bd34c89bf63087756bf2a9711b5ef04a64
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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 http://gtlfuelmarine.com/userfiles/file/62098812410.pdf In PDF document text
    • http://musik-fachberatung-neumarkt.de/images/uploadedimages/file/jeniporo.pdfIn PDF document text
    • http://kowel.com/ckfinder/userfiles/files/1632486878.pdfIn PDF document text
    • https://pensiuneaselina.ro/userfiles/file/92996335207.pdfIn PDF document text
    • https://colegiumaniucarei.ro/ckfinder/userfiles/files/89300191334.pdfIn PDF document text
    • http://edallyshop.com/upload/files/24947097782.pdfIn PDF document text
    • https://gilbertems.com/videos/file/deradukejapipulumuba.pdfIn PDF document text
    • http://kssi.ir/public/userfiles/file/bojobetidap.pdfIn PDF document text
    • https://sanmuabandoanhnghiep.org/images/content/files/71261021550.pdfIn PDF document text
    • http://rosg.net/sa_upload/userfiles/file/20211010231254.pdfIn PDF document text
    • https://burkina-businessschool.com/business_school/uploads/file/15018898015.pdfIn PDF document text
    • http://thienminhgroup.com/uploads/userfiles/file/zijutulateketaxefoxusuf.pdfIn PDF document text
    • http://hawaiianhunareiki.it/file/42843955863.pdfIn PDF document text
    • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16138342bb3361---13688442806.pdfIn PDF document text
    • http://konditsionery-zheleznodorozhnyi.ru/upload_picture/file/morex.pdfIn PDF document text
    • http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/15201795344.pdfIn PDF document text
    • http://posicert.com/upload_fck/file/2021-10-19/20211019180104905285.pdfIn PDF document text
    • http://bienbao.net/uploads/files/87512069708.pdfIn PDF document text
    • http://cuspsurgeons.com/userfiles/file/50847976931.pdfIn PDF document text
    • https://baust.edu.bd/app/webroot/ckfinder/userfiles/files/49339569155.pdfIn PDF document text
    • http://gbfrjournal.org/pds/userfiles/files/tolexarakedezumisejufo.pdfIn PDF document text
    • http://www.dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/73968111393.pdfIn PDF document text
    • http://rajskiewakacje.pl/userfiles/file/91645538627.pdfIn PDF document text
    • http://karpatskiles.ru/store/files/vimurepokarexa.pdfIn PDF document text
    • http://placc.info/up_image/kategutajer.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/23D8k0Ec_6w/uplcv?utm_term=in+the+end+of+yearPDF 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_off0000e141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE141 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF953 18732 bytes
SHA-256: bbe09a200faee50afd55952ce4221e6596f6080f99a2a5e5e2473a6340720a12
font_02_sfnt_off000129f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129F8 10208 bytes
SHA-256: 45225c9603985294a2cbb06a327e1b9689d0cf34d532bdb8b73e404f57878922

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