Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae70d0dd8f94a47d…

MALICIOUS

PDF

72.7 KB Created: 2021-03-08 12:27:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d718d642aa18bcb81c33683835c89b7e SHA-1: c57ef60b80725b23c6e50f75acec8cb17f633a5e SHA-256: ae70d0dd8f94a47de55311e2ba0ca4259748ef4d22d2b8a72f778b7f20273e8a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vilenefex.ru/award?keyword=sociolinguistics+summary+pdf PDF link annotation
    • https://cdn.sqhk.co/mapexovebo/w4geicZ/fowudizutalegataz.pdfIn PDF document text
    • http://siwupojotuj.getenjoyment.net/63100922152.pdfIn PDF document text
    • https://novomuzedideb.weebly.com/uploads/1/3/1/4/131406537/paminaw-sirezizipibesup-nefibuna.pdfIn PDF document text
    • https://cdn.sqhk.co/pesamelez/Xiegcja/35310135724.pdfIn PDF document text
    • http://xorabawik.medianewsonline.com/nagifixogojoxizez.pdfIn PDF document text
    • https://fojakodi.weebly.com/uploads/1/3/1/3/131379163/839a2876234bd32.pdfIn PDF document text
    • https://cdn.sqhk.co/mikevoponage/0ifQHap/nadaxogaxexolexudijineva.pdfIn PDF document text
    • https://mivezosikobo.weebly.com/uploads/1/3/1/4/131453246/3591003.pdfIn PDF document text
    • http://duwudivusupo.mygamesonline.org/how_to_fix_slow_download_speed_ps4.pdfIn PDF document text
    • https://pananufizusa.weebly.com/uploads/1/3/4/4/134445813/momof.pdfIn PDF document text
    • http://pusovemolexed.scienceontheweb.net/how_to_solve_limits_infinity.pdfIn PDF document text
    • http://pivojowemetobiv.mywebcommunity.org/the_woman_in_the_window_netflix_release_date_uk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/35a59d16-1016-429f-9e47-64516a40fbf7/harry_potter_and_the_philosophers_stone_book_synopsis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd5b12d0-9669-42d1-80bc-9c697eb878ec/wovokaw.pdfIn PDF document text
    • http://dapizodipe.myartsonline.com/pathfinder_player_companion_ranged_tactics_toolbox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3f23192-c277-41f8-bd61-bb3d2227919c/is_california_republic_bad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a7bfede-2a78-446c-913b-dc46341bd558/gaxoxo.pdfIn PDF document text
    • http://moxapowi.myartsonline.com/developing_countries_list_2020.pdfIn PDF document text
    • https://d5e9a058-cbdc-4968-ba72-30cdbf1e36a3.filesusr.com/ugd/9cfd0a_5d4c8f0adf1d452ab2940b391931a673.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/432345eb-e66e-4110-b072-638d1c9a4c7f/estadistica_de_covid_19_a_nivel_mundial.pdfIn PDF document text
    • https://dc58184e-bbba-402a-8e08-a55d552c8f3f.filesusr.com/ugd/0ebc1f_ff766f94839f439f9b15b5b00b6fbcc4.pdf?index=trueIn 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_off0000dfae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAE 5680 bytes
SHA-256: e25e192048496a59c66e4f559a60f9fcb2edc76c6ab89730ca4b58a913600923
font_01_sfnt_off0000f2fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2FB 10160 bytes
SHA-256: d2178f52cea56abb2744d5f8c4052ade25c5954b514e42aa36de57ec90baf97b

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