Malicious PDF — malware analysis report

Static analysis result for SHA-256 e39d59b67a2d9fe1…

MALICIOUS

PDF

73.1 KB Created: 2021-02-24 01:31:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4c02436fcd2d8de1f63dad77956b4a5c SHA-1: 6b40d592312ab551ad97766a82190e44578cdf0a SHA-256: e39d59b67a2d9fe16c3538a42c5e82cdf26b4050fc8b7477fa61c228437ee54a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wix?keyword=the+sky+is+everywhere+online+pdf PDF link annotation
    • http://italiahot.space/320134738017xtyb.pdfIn PDF document text
    • https://cdn.sqhk.co/dutudovajud/7iaZjbG/classroom_management_lesson_plan.pdfIn PDF document text
    • http://purpless.vip/mimeza5212x.pdfIn PDF document text
    • http://justiciaforjustice.com/32721941912r1mnc.pdfIn PDF document text
    • http://sale20.site/present_and_past_simple_passive_exercisesxzsmx.pdfIn PDF document text
    • https://muzavixoro.weebly.com/uploads/1/3/4/6/134647253/pozejolapaduno-xoteliw.pdfIn PDF document text
    • https://bajurajatug.weebly.com/uploads/1/3/6/0/136054821/794d729d32.pdfIn PDF document text
    • http://ogranicbio.fun/descargar_formulario_imm_5257_visa_ccr4xh.pdfIn PDF document text
    • https://tonogedufeji.weebly.com/uploads/1/3/4/3/134378200/5964171.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366405/normal_600abc097fbf8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379984/normal_5fd8e90a8f4a2.pdfIn PDF document text
    • http://mscredit.info/plant_adaptations_worksheet_2nd_gradeyoqe0.pdfIn PDF document text
    • http://bodyita.space/10777253642h3c6f.pdfIn PDF document text
    • https://porovepo.weebly.com/uploads/1/3/4/5/134527374/235030.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372980/normal_5fc603dfcc764.pdfIn PDF document text
    • http://naturalm.space/84263204430id1zt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380883/normal_5ffcc1db25d38.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/zesixefe/5962293350.pdfIn PDF document text
    • https://s3.amazonaws.com/zowibatev/pomuvajetesojisatuvu.pdfIn PDF document text
    • https://s3.amazonaws.com/bubisifapagefe/jingle_bells_sheet_music_easy.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_off0000e1fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FC 5184 bytes
SHA-256: 8e9eb3e4aab4b7b6c6912e3d548fe2bc1bcf981ca314df7cc4cdff6ac0cc592d
font_01_sfnt_off0000f3b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B9 10424 bytes
SHA-256: 512fbb58656f7f25f295de1bc0b806fcacfe8dd184693d4e9ff73b4061f7543f