Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd84625847acc99c…

MALICIOUS

PDF

72.5 KB Created: 2021-03-06 02:37:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cd7c2abc8d7cbbe8afcfe10f5d8d74c8 SHA-1: 9d72a7104884b0c3d1465348314450b58d2fb0b0 SHA-256: cd84625847acc99c8b35437ace01db486cd2f74c79bb894eba5d38e2552a435e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wix?keyword=marble+sorter+designs PDF link annotation
    • https://jewezuwexokuj.weebly.com/uploads/1/3/4/7/134717424/4e2bd06d1a31c47.pdfIn PDF document text
    • http://turokanalojik.iblogger.org/19_positive_psychology_exercises_to_do_with_clients_or_students.pdfIn PDF document text
    • http://lalabomujulimof.mywebcommunity.org/is_administration_capitalized_chicago_manual_of_style.pdfIn PDF document text
    • https://dekitinuro.weebly.com/uploads/1/3/4/8/134871397/kusaragobobase.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389582/normal_5fe6f68d699b8.pdfIn PDF document text
    • http://fesufobototezer.mywebcommunity.org/hp_deskjet_3050a_j611_scanner_not_working_windows_10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449968/normal_603e685edb4a6.pdfIn PDF document text
    • https://xamonato.weebly.com/uploads/1/3/2/8/132814301/34581445586.pdfIn PDF document text
    • http://ruguwafe.scienceontheweb.net/what_are_all_the_keurig_models.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366400/normal_5fdc0b96121ff.pdfIn PDF document text
    • http://suxoxaxowigab.scienceontheweb.net/what_is_a_certificate_of_creditable_coverage_letter.pdfIn PDF document text
    • https://devigejijakefu.weebly.com/uploads/1/3/2/7/132740662/lufulirina-borilege-ravoteni.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426966/normal_5fdda0168d473.pdfIn PDF document text
    • https://xigowepuge.weebly.com/uploads/1/3/6/0/136082497/lumasaxejif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sajorasuxanuvil.epizy.com/spotify_win_7_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/pezujafirujuzorabaritij.pdfIn PDF document text
    • https://891dfe3a-8969-4df2-b253-5ccc4ebbb7a0.filesusr.com/ugd/e66789_0445fff497bf4b46a71e843324c201bc.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/37953250953.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/carrom_pool_apk_uptodown.pdfIn PDF document text
    • https://810dce77-56ab-4324-823a-3549757f4eab.filesusr.com/ugd/1fad07_15d8931298fc474299c9cc94554b8514.pdf?index=trueIn PDF document text
    • https://d128792e-e0a8-46e0-98ed-b941f5da69b2.filesusr.com/ugd/b98abb_491d17ce1e6e4487ab31ca2f90008390.pdf?index=trueIn PDF document text
    • http://tuxabatadifu.onlinewebshop.net/visual_basic.net_download_for_mac.pdfIn PDF document text
    • http://xenivut.epizy.com/beginner_5k_training_plan_4_weeks.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_off0000e182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE182 5136 bytes
SHA-256: 715c4c9f37a153ff6683b8046af38d1a8f943a2a3d714876079d085fb81c0817
font_01_sfnt_off0000f30b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30B 9948 bytes
SHA-256: ec9cc32134b3a58d8e47685f8df8bfe78649af1e8838cc3dc5ccd27dc1f5496a

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