Malicious PDF — malware analysis report

Static analysis result for SHA-256 80bbbb1a17c77132…

MALICIOUS

PDF

55.7 KB Created: 2021-06-12 17:35:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 13359d809ed83f23d3eb4f6906887c74 SHA-1: ee467e6c9238f40b1c180fe7de6550df26ccf2b5 SHA-256: 80bbbb1a17c771322cac0225bac0972993d50507eaf19357960b4b7ed01c3109
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5074

Heuristics 4

  • 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
  • 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://infrive.ru/pbw?utm_term=who+is+considered+the+richest+man+in+the+world PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4467019/normal_60621b02e644d.pdfIn PDF document text
    • https://jokimaxe.weebly.com/uploads/1/3/7/5/137513409/9593fadc5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464525/normal_5febfffc15918.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410975/normal_6011584a58ff9.pdfIn PDF document text
    • https://fubuworarakej.weebly.com/uploads/1/3/4/1/134108970/vosam-wimuradili-fagebajikeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388412/normal_60c4172fe8369.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459630/normal_5ffb13a032659.pdfIn PDF document text
    • https://wigemixez.weebly.com/uploads/1/3/4/2/134265991/7570385.pdfIn PDF document text
    • http://tusoxefum.pbworks.com/w/file/fetch/145155960/64782791418.pdfIn PDF document text
    • http://rimogeto.pbworks.com/f/what_does_the_white_heron_represent.pdfIn PDF document text
    • http://fisukafetif.pbworks.com/f/club_car_ds_rear_axle_oil.pdfIn PDF document text
    • http://vulifib.pbworks.com/f/semewipemonipixeku.pdfIn PDF document text
    • http://lumoxag.pbworks.com/w/file/fetch/145170396/47336852854.pdfIn PDF document text
    • http://bajaduxaxusi.pbworks.com/f/free_psychometric_personality_test.pdfIn PDF document text
    • http://lekadebixe.pbworks.com/f/how_do_i_reset_my_panasonic_viera_plasma_tv.pdfIn PDF document text
    • http://komogabovuwa.pbworks.com/f/sitamowaxu.pdfIn PDF document text
    • http://sufasujozu.pbworks.com/f/dofimejider.pdfIn PDF document text
    • http://zuvevetub.pbworks.com/w/file/fetch/144422562/las_7_claves_del_exito_de_disney_resumen_capitulo_2.pdfIn PDF document text
    • http://giribuv.pbworks.com/w/file/fetch/144542691/fsica_halliday_resnick_5_edicion_volumen_1.pdfIn PDF document text
    • http://gafuxexosaru.pbworks.com/f/30510890041.pdfIn PDF document text
    • http://genarozep.pbworks.com/f/cylinder_volume_and_surface_area_worksheet.pdfIn PDF document text
    • http://gaguseka.pbworks.com/f/how_to_fix_lg_washing_machine_oe_error.pdfIn PDF document text
    • http://lesokulovisu.pbworks.com/f/fast__the_furious_hobbs_and_shaw.pdfIn PDF document text