Malicious PDF — malware analysis report

Static analysis result for SHA-256 a929cb42a6a5502f…

MALICIOUS

PDF

70.5 KB Created: 2021-03-05 07:40:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 34837243f77e0eff2c09298ce9878bbd SHA-1: e23256b5d4615be19e370ec3735765bd88469136 SHA-256: a929cb42a6a5502f39ccc3adf2be211a7fee923bece0ea443bae2227daea2aa5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/wix?keyword=vernier+ap+chemistry+labs PDF link annotation
    • http://detonic-ufficiale.website/like_a_boss_meme_templatexitwy.pdfIn PDF document text
    • http://baffer-shop.space/como_nos_anos_passam_de_longo_a_tabui4mjj.pdfIn PDF document text
    • https://cdn.sqhk.co/wazikunal/bzCvigC/dentist_assistant_job_near_me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410418/normal_5fcaa56c1b8bc.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/j6gfUhe/wejoduvoxoj.pdfIn PDF document text
    • http://yandex-dostav.ru/nubezizikinobapie5iu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486346/normal_5ffd4b5844fc6.pdfIn PDF document text
    • https://cdn.sqhk.co/vijasezadida/zbhc6ja/gukadirorodiraxize.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386822/normal_5fe66db14ad18.pdfIn PDF document text
    • https://cdn.sqhk.co/gixotagokezu/BuiaMjg/general_hospital_nelle_leaving.pdfIn PDF document text
    • http://wtia.space/17766743893zmx05.pdfIn PDF document text
    • http://wabitolukarile.22web.org/1232999486.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454558/normal_6041621cc6594.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420034/normal_5ffd2ad14e17a.pdfIn PDF document text
    • http://ek-arenda.ru/busepakeginy1yk6.pdfIn PDF document text
    • https://cdn.sqhk.co/bolukawet/S5n2gis/wifova.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ruxurosagogaru.epizy.com/frigidaire_washer_dryer_combo_not_drying.pdfIn PDF document text
    • http://weralawubuzeg.epizy.com/xegete.pdfIn PDF document text
    • http://lekazukexofa.rf.gd/network_speed_apk_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/31378170759.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/twist_of_the_wrist_free.pdfIn PDF document text
    • http://lenumizisil.rf.gd/2526911192.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/42938808363.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_off0000d8a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A8 5380 bytes
SHA-256: 3a388fd8202a875fee25edcae1071b76bfa07689b4064ad1b46a12bb031df3ee
font_01_sfnt_off0000eac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC9 9936 bytes
SHA-256: ca8a04583a569c951d080c3cb90110e97f5fdce5d9a2b6ecbf27a138e67c5515

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