Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b812659ab505f14…

MALICIOUS

PDF

72.8 KB Created: 2021-03-04 23:50:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b8a8e21fc121c0e29b82cc28eb538f6f SHA-1: d8d0b44d376b76d496e80b0661c2941cdbc45bec SHA-256: 4b812659ab505f142ec295954e460c2307a596af741dd159042c06051d2eab55
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://botokaw.ru/award?keyword=five+nights+at+freddy%2527s+free+game+no+download PDF link annotation
    • https://cdn.sqhk.co/sebutarukaw/haiMzjf/the_real_war_of_thrones_series.pdfIn PDF document text
    • http://alcexpress1.xyz/36827904205vhsba.pdfIn PDF document text
    • http://siwarezowagi.iblogger.org/85693002611.pdfIn PDF document text
    • https://cdn.sqhk.co/sezogitov/hcEBuCL/counter_snipe_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403266/normal_5fca3e1d2183c.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/YoiaVu6/bulleit_bourbon_10_year_limited_release.pdfIn PDF document text
    • http://dmgameplan.com/swann_smart_security_camera_1080p_full_hd_wireless_security_camera_reviewxz3u8.pdfIn PDF document text
    • http://help-copyrightviolationhelpcenter.com/75415979438h38jo.pdfIn PDF document text
    • http://prizinsta.online/81291505902dy4mi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450884/normal_602a97c7a97d9.pdfIn PDF document text
    • http://mkuu.club/72009294308hlrod.pdfIn PDF document text
    • https://cdn.sqhk.co/ligilitojob/jCihqfq/sports_tv_live_app_for_pc.pdfIn PDF document text
    • http://roflan.site/36297425039w2q54.pdfIn PDF document text
    • http://mattelipsticks.site/delta_loop_antenna_impedancexupoa.pdfIn PDF document text
    • http://ewwe.space/28627055343oao05.pdfIn PDF document text
    • https://cdn.sqhk.co/lebinezekoma/gj2ibVc/amazon_alexa_echo_2nd_generation_setup.pdfIn PDF document text
    • http://kino-vezde.ru/romantic_period_of_english_literaturew6eak.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuwopun.rf.gd/easy_home_budget_template.pdfIn PDF document text
    • http://pigozezidum.rf.gd/camera_2_api_whyred.pdfIn PDF document text
    • https://f1ddcea9-c323-452c-a4d3-aaefec61e50a.filesusr.com/ugd/defd8a_4766222a08fa45e5923c5df92adadeb1.pdf?index=trueIn PDF document text
    • http://daremafuxabo.rf.gd/sinogemolizox.pdfIn PDF document text
    • https://6c036dbd-b327-4678-b778-de8a2ee7bb50.filesusr.com/ugd/ed64d2_9e228db06780488fa97c21c3d55b4a89.pdf?index=trueIn PDF document text
    • https://39ad70c8-6a03-4de2-a89b-b0209cba5754.filesusr.com/ugd/d2759c_9e3786094e784694a1df04eb14570118.pdf?index=trueIn PDF document text
    • https://a0f88182-e1f9-4a9c-ba22-d5ce004c6985.filesusr.com/ugd/2f3216_96c0c5eae1ba4cad90ad62371817d101.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_off0000dff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF6 5564 bytes
SHA-256: 4d50c7daefe8ef314500e026dd61f8701d8039cc26963b1f10c70a093a780024
font_01_sfnt_off0000f2e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E6 10076 bytes
SHA-256: 4401a8338ca64520cc2ea09aa7e759bb8772a9a03bd7852dd708536c2f10aa74

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