Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b95e6879a6a0c51…

MALICIOUS

PDF

81.2 KB Created: 2021-09-15 17:27:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: e79f32272cc7e77026a05a2501d1e401 SHA-1: ba710a398b994877c446e293bfe2fe8d77accfdb SHA-256: 8b95e6879a6a0c516776c7c2df6aa5a50034c4136aecf361482ed405c0bc46ba
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

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://infrive.ru/uplcv?utm_term=animal+kingdom+battle+simulator+3d+mod+apk PDF link annotation
    • https://ebooksweb.net/files/file/beneviga.pdfIn PDF document text
    • https://interstudy.net/userfiles/file/26078429147.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133b6e0e6823---63674190572.pdfIn PDF document text
    • http://taispacedesign.com/upload/files/lexuzolob.pdfIn PDF document text
    • http://baggiez.net/userfiles/file/dosogimumufizogonotaro.pdfIn PDF document text
    • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/te0frf7qsdb1kbl0k9cgbc43oi/kidepona.pdfIn PDF document text
    • http://parfumerieindex.nl/images/uploads/24677087254.pdfIn PDF document text
    • http://ronaldtan.nl/images/photo/44989604058.pdfIn PDF document text
    • http://naphogacomposite.com/upload/files/wafikepifa.pdfIn PDF document text
    • http://champagne-marc-chauvet.com/images/files/sigadetawapuniretawez.pdfIn PDF document text
    • http://ylpcl.com/ckfinder/userfiles/files/28421727747.pdfIn PDF document text
    • https://brs.jo/userfiles/files/zofiwufo.pdfIn PDF document text
    • http://bienbao.org/uploads/files/luwunozisodaxinevazev.pdfIn PDF document text
    • http://seritour.com/rsm/files/fofamamudaduli.pdfIn PDF document text
    • https://fa-vietnam.com/webroot/img/files/mupixofexejedajovome.pdfIn PDF document text
    • http://aimecostruzioni.it/userfiles/files/fupuropuv.pdfIn PDF document text
    • https://nbc.com.vn/ckfinder/userfiles/files/wavedetanebegenagovonud.pdfIn PDF document text
    • https://samsungdvmklima.com/upload/ckfinder/files/97998100286.pdfIn PDF document text
    • http://baraanduliaptti.org/userfiles/file/39859704572.pdfIn PDF document text
    • https://phatgiaolongan.com/upload/ckupload/files/64133568270.pdfIn PDF document text
    • http://9jamail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/buzogupikevegexuwum.pdfIn PDF document text
    • http://ecovn.vn/uploads/news_file/pabidetuxe.pdfIn PDF document text
    • http://chinazzjx.com/d/files/zuxovoteguzomidoselebegof.pdfIn PDF document text
    • http://feuerwehr-mittenwalde.de/mediathek/files/jurizedezumufawefi.pdfIn PDF document text
    • http://kashima.cc/userfiles/file/zerugabekete.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_off0000d66e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD66E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ee80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE80 17968 bytes
SHA-256: 3a8bfce3ecc57e6688c9a518fcedf2f7717327e028cbe7e448c3f75578215a2e
font_02_sfnt_off00011d00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D00 11220 bytes
SHA-256: 309a1f41c24edc0355fee2762c19ec8c9404832ad55aed85ed92bb34435ffabc

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