Malicious PDF — malware analysis report

Static analysis result for SHA-256 3784ce1c2facbd47…

MALICIOUS

PDF

72.6 KB Created: 2021-03-06 19:12:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cd609ef3a9a17c4504533328ed47a942 SHA-1: 9c39afe308faf3da357933433c74f62c3c8e5c85 SHA-256: 3784ce1c2facbd47aaf4d94b610185f9a1c00f840e4fc7f5ebb42e2f1c82151d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/award?keyword=helter+skelter+film+1976+streaming PDF link annotation
    • http://sberin.xyz/zefidezusxone.pdfIn PDF document text
    • http://fastnoutservice.ru/sportline_stopwatch_model_220vnh20.pdfIn PDF document text
    • http://matcobzor.ru/how_to_turn_on_hayward_heaterm1l5n.pdfIn PDF document text
    • https://cdn.sqhk.co/josurowelimu/vIjeTMF/heroics_podcast_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/betarudigi/hhcQgta/rangers_of_oblivion_npc_locations.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421352/normal_602f96f17286f.pdfIn PDF document text
    • http://topchambre.xyz/bright_starts_comfort_and_harmony_bouncer_recalld03x5.pdfIn PDF document text
    • http://xebiniseba.mygamesonline.org/how_to_replace_batteries_in_xfinity_remote_control.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387718/normal_602330467b66c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450003/normal_6017080d59d62.pdfIn PDF document text
    • https://cdn.sqhk.co/pibusupi/mgjuyCj/mibanelanud.pdfIn PDF document text
    • http://logmeinnow.xyz/the_great_gatsby_chapter_3_and_4_study_guide_answersupb5v.pdfIn PDF document text
    • https://cdn.sqhk.co/zibomevuguli/iOiiZhf/23917298351.pdfIn PDF document text
    • http://cmbclientes.com/california_house_rental_agreement_form6rilh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446643/normal_6014095dc8762.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369769/normal_5fefa9b75f3d5.pdfIn PDF document text
    • http://wei-nmvc.com/autocad_2013_full_video_tutorials_free_download9cb1s.pdfIn PDF document text
    • http://yesstore.pro/ancient_sith_artifact_yavin_4hm51k.pdfIn PDF document text
    • http://shoop-fg.ru/first_grade_grammar_worksheets_freettkjl.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/folexapurilowe/11470011466.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/34252502907.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/sukon.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/drip_irrigation_application_form.pdfIn PDF document text
    • http://zitasixan.atwebpages.com/sig_sauer_p229_9mm_barrel.pdfIn PDF document text
    • http://liroporuki.myartsonline.com/join_two_word_files_together_online.pdfIn PDF document text
    • http://pidusagi.atwebpages.com/mevopavigibamojofikenu.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_off0000db28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB28 5556 bytes
SHA-256: 1c3e27a4700ecf093afbf9a1b05e3dcbe8d1dd5c26cec29f1d36e6a118154d4b
font_01_sfnt_off0000edf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF9 11248 bytes
SHA-256: 0fa6529188e5cb2bea5c47cf573d339c6dc8cdc447977d191186d0f8c9ad9fbb

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