Malicious PDF — malware analysis report

Static analysis result for SHA-256 6af3b74a2d7f6fe8…

MALICIOUS

PDF

67.0 KB Created: 2021-02-11 03:43:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 01139acd09aa96fde5c67f180c5c490d SHA-1: f6a4096d02cda54f1a9a2db30fdbcb5bf84ad4f1 SHA-256: 6af3b74a2d7f6fe8709631d8c98bd588af403d155ea4a90f298379daf62ecc10
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://bologen.ru/123?utm_term=snail+bob+4+level+8 PDF link annotation
    • http://gratoraama.space/tupugebofabixemefewfe1r.pdfIn PDF document text
    • http://reduslim-official.website/fomevunedl62v.pdfIn PDF document text
    • https://zezowamizafomex.weebly.com/uploads/1/3/1/3/131381240/surafenerur.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/jgUihlt/meraposineso.pdfIn PDF document text
    • https://cdn.sqhk.co/gotoruzud/hhbzhij/bengali_to_english_convert_online.pdfIn PDF document text
    • http://lg-copyrightforms.com/dunifagovibosiwjnor.pdfIn PDF document text
    • http://gufelujoziwuki.iblogger.org/angularjs_form_dirty_pristine.pdfIn PDF document text
    • https://wenabavur.weebly.com/uploads/1/3/1/3/131379405/retafuzusifiren_tubanaxutuja.pdfIn PDF document text
    • https://cdn.sqhk.co/jepipovi/fiinShg/gunnarolla_i_took_a_nap.pdfIn PDF document text
    • https://pejilajapife.weebly.com/uploads/1/3/4/4/134477767/5957843.pdfIn PDF document text
    • https://cdn.sqhk.co/duvapegoleva/jaOpDRj/first_grade_math_teks_2020.pdfIn PDF document text
    • https://mewuvirinikupu.weebly.com/uploads/1/3/4/5/134505229/8032a51.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/rovuweraja/button_color_transparent_android.pdfIn PDF document text
    • http://xenuduximowub.epizy.com/tonisa.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/kayn_lol_guide_jungle.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/afari_afari_song_ming.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/aarakshan_reddy_video_songs.pdfIn PDF document text
    • http://xesidif.epizy.com/remove_bloatware_android_5.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_off0000cbb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBB8 4992 bytes
SHA-256: 1a400859d0406e6df3d9b56579f39bd29d82ed8f0de40b06fc903bc5d55cbf21
font_01_sfnt_off0000dcd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD0 10164 bytes
SHA-256: fc4cbc4449e3e5c51dc7119d69a34ab56e473a4f3014582ef5d710de925f58e8