Malicious PDF — malware analysis report

Static analysis result for SHA-256 38fabdc5e7b31a8f…

MALICIOUS

PDF

51.7 KB Created: 2021-03-29 16:27:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 915244f5fcb786b4d7836d200a01524b SHA-1: c9d6a393b87beceebc3d4f6e5e0d5398253670c2 SHA-256: 38fabdc5e7b31a8f182e37013a8240a44440b20fac992011d94911478b1a1c52
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 0.7339

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://maypoin.ru/award?keyword=el+embarazo+en+las+adolescentes+pdf PDF link annotation
    • http://xuzobinemipivor.mygamesonline.org/guxuvemi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385647/normal_60532b6b75eb6.pdfIn PDF document text
    • http://bumefivaloso.scienceontheweb.net/deep_ecology_and_world_religions.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488314/normal_602f334308397.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493195/normal_6058a1be305f9.pdfIn PDF document text
    • http://manapuzasupin.sportsontheweb.net/dedodotowebazatap.pdfIn PDF document text
    • http://lotibamuzuti.scienceontheweb.net/59181868834.pdfIn PDF document text
    • http://lilozekakotelup.sportsontheweb.net/delafosunolupoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406213/normal_602468fc4db10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454425/normal_605cab2db79d8.pdfIn PDF document text
    • http://rusewigojubilon.mygamesonline.org/jasix.pdfIn PDF document text
    • http://vovakupalujum.onlinewebshop.net/importance_of_reliability_in_research.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6a5996d-f9a6-4c3c-b85b-f25d0c034741/bededabiwerafiwukezil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee0a709f-ebe8-4856-953f-c3af0c2cc65d/ejemplos_de_discurso_directo_e_indirecto_para_nios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5083ee46-88f1-458a-98fa-08891a9535b3/50138796085.pdfIn PDF document text
    • http://jiwodiw.myartsonline.com/el_comulgatorio_baltasar_gracian.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3022eb1-fce2-4160-af82-890c4814810e/87081798673.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d88c4258-292d-498d-984e-e62b4f922694/how_to_relieve_shoulder_and_neck_pain_exercise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b5eec1e-799d-40cd-91b7-acd3bea8abec/debimapewer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb235b3e-ee80-4de9-89a0-098476ceabb3/xp_series_gaming_chair_manual.pdfIn PDF document text