Malicious PDF — malware analysis report

Static analysis result for SHA-256 0afcd63727c4c7d2…

MALICIOUS

PDF

65.7 KB Created: 2021-03-04 08:43:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 10dcbf3747b5a78ff8775802565ea993 SHA-1: 62b4d7b0b4c602c4b969024205464d76e62901d0 SHA-256: 0afcd63727c4c7d2b3079a4666394b3d502d37740e86cd42d1a09bc0cb5fbef1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://resalured.ru/wix?keyword=the+norton+sampler+8th+edition+pdf PDF link annotation
    • https://petodudugagakot.weebly.com/uploads/1/3/4/6/134640630/marikili.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446263/normal_6023e966efac5.pdfIn PDF document text
    • http://alteramaks.world/xexedakandjfd9.pdfIn PDF document text
    • https://muwamobole.weebly.com/uploads/1/3/4/3/134356931/fejumimom.pdfIn PDF document text
    • http://fexuvukenix.22web.org/42660424606.pdfIn PDF document text
    • https://tomosuboma.weebly.com/uploads/1/3/5/3/135382902/1876253.pdfIn PDF document text
    • http://7lessons.space/ionization_energy_trend_worksheet_3_answers9qq0w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409602/normal_601ff0bdd503b.pdfIn PDF document text
    • https://tepidupelagoxu.weebly.com/uploads/1/3/4/4/134472529/febofutit.pdfIn PDF document text
    • http://wuwisometojone.66ghz.com/format_sql_server_decimal.pdfIn PDF document text
    • http://kusafomidufe.mywebcommunity.org/54440081904.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479715/normal_603e1057c5244.pdfIn PDF document text
    • http://imkl-checker.com/background_ppt_yang_menarikrnsm3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lokemupuwife.rf.gd/adding_and_subtracting_fractions_with_different_denominators_worksheets.pdfIn PDF document text
    • http://puxakuxuvon.epizy.com/68296463199.pdfIn PDF document text
    • http://vojevawe.epizy.com/momenaposotej.pdfIn PDF document text
    • http://jujijokupezuxis.epizy.com/kugazogakiludi.pdfIn PDF document text
    • http://katevafitaga.epizy.com/minn_kota_riptide_55_i_pilot_review.pdfIn PDF document text
    • http://zetitovafe.rf.gd/atheros_driver_client_installation_program_for_windows.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_off0000c54f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC54F 5424 bytes
SHA-256: 16d899ee2203b1148f169b4a1db17767faf89182794a99ab4d8f21ef859d6f02
font_01_sfnt_off0000d78f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD78F 9956 bytes
SHA-256: f661bd8cb9f6c7ceb2ae17f6032d6777192179c0762304fea45c6ecd8c72753f