Malicious PDF — malware analysis report

Static analysis result for SHA-256 20dc2cc8014d9e7d…

MALICIOUS

PDF

75.7 KB Created: 2021-02-14 15:26:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b77ff1dfb7f78be57006bde75e50ef27 SHA-1: 18d3ff9626093a05685121d65c644025408d5261 SHA-256: 20dc2cc8014d9e7d41ad7b0a28213059d01dc117c1e698c86d07cd39f8d8e7ad
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wb?keyword=16%20ga%20sheet%20metal%20thickness PDF link annotation
    • http://zuwazari.22web.org/bare_necessities_piano_sheet_music_musescore.pdfIn PDF document text
    • http://logmeinnow.xyz/861008908725brzu.pdfIn PDF document text
    • http://13millions.store/34716241147rz5xz.pdfIn PDF document text
    • http://kedejusofapirej.22web.org/wotanew.pdfIn PDF document text
    • https://difegalit.weebly.com/uploads/1/3/2/6/132681294/5164559.pdfIn PDF document text
    • https://kokesekodabese.weebly.com/uploads/1/3/4/0/134012443/nomulasezawasirug.pdfIn PDF document text
    • http://zujonatuvetivux.iblogger.org/testout_network_pro_answers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/waduzirader/jawuwitapigezigip.pdfIn PDF document text
    • http://pixoriwabivonol.rf.gd/xamofuzubasazaw.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/adele_hello_lyric_video.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/chinna_chinna_solleduthu_song.pdfIn PDF document text
    • http://poduzamilikuki.rf.gd/26184550758.pdfIn PDF document text
    • http://moganip.epizy.com/sword_art_online_opening_4.pdfIn PDF document text
    • http://vedezaduxi.epizy.com/garden_answer_wiki.pdfIn PDF document text
    • http://dilexaluv.epizy.com/55010932070.pdfIn PDF document text
    • http://fifusudevop.rf.gd/adidas_performance_pureboost_go_ltd.pdfIn PDF document text
    • http://tulixiwubov.epizy.com/ajeet_katara_rasiya_dj_remix.pdfIn PDF document text
    • http://kalotiwinilobiw.epizy.com/science_fiction_books.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB80 5292 bytes
SHA-256: e8f0b278deb535c1acf723d9db2ff1013705d0b0c821dd4709fa6b3df6741f93
font_01_sfnt_off0000fd65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD65 10700 bytes
SHA-256: 012c795be5b1677db92e3d98a4889c1959464c23e52097b9df0dd89e16a27abc