Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b688324e37823cf…

MALICIOUS

PDF

71.8 KB Created: 2021-02-13 02:11:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 59e7df828b7d81d4ea771c153a6a94d9 SHA-1: ffe3dc3b5a618b1716132452a57981a24358508e SHA-256: 9b688324e37823cf5c93e9084a1af8d29f14406e97820e8b436a5b5b46f2e168
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jacksth.ru/wix?keyword=classical+theory+of+inflation+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426815/normal_601d29a555b29.pdfIn PDF document text
    • https://begakidiwadagav.weebly.com/uploads/1/3/1/3/131397934/3db4d63f.pdfIn PDF document text
    • https://cdn.sqhk.co/nosisatoved/ieiiibO/vakipojivagi.pdfIn PDF document text
    • http://fherixq.com/41371697224ska5x.pdfIn PDF document text
    • http://sojuvofud.22web.org/enterprise_software_industry_report.pdfIn PDF document text
    • https://tesegedoveveda.weebly.com/uploads/1/3/4/8/134891870/tejeropaxuf.pdfIn PDF document text
    • https://cdn.sqhk.co/zumufapofow/Wjbhajc/kung_fu_monkey_board_game.pdfIn PDF document text
    • http://damvglaz0.xyz/64059026038ve0jw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403271/normal_6008801e86ce3.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/AjfTrjb/ant_colony_optimization_example_code.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/jcsVIhe/23616901655.pdfIn PDF document text
    • http://fibilif.iblogger.org/mutual_agreement_employment_termination_template.pdfIn PDF document text
    • https://vigodabazo.weebly.com/uploads/1/3/4/8/134872933/5866208.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443292/normal_5fcd5953480b4.pdfIn PDF document text
    • http://pexukakadom.22web.org/xomedunigu.pdfIn PDF document text
    • http://begdas.fun/instrumentation_engineering_mcq2oi24.pdfIn PDF document text
    • https://vugalemudapitos.weebly.com/uploads/1/3/1/1/131164275/vizonubujawaxa-pawapizagudiri-bedogazo.pdfIn PDF document text
    • https://jimiporumina.weebly.com/uploads/1/3/6/0/136088268/topufosonajoso_gulumazabamudir_goxed_kozakajonupunis.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/muxegeza/sports_tv_live_channel_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/numomitasar.pdfIn PDF document text
    • http://tumofif.rf.gd/sap_bw_basis_administration.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/33929985350.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/96439290235.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_off0000de64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE64 5248 bytes
SHA-256: 866ed66746c4b67c5a259ac572f6e75d9796539617fa550887e211fa0b12737c
font_01_sfnt_off0000f03c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03C 9760 bytes
SHA-256: a47d5125f8b6f3f0282a909bebdee419a7a0146701b3e33878cea14e183efe95

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