Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f15453a864b4619…

MALICIOUS

PDF

89.8 KB Created: 2021-06-03 08:14:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8aef1c450356941f1a4da4032e392bba SHA-1: 3e4e92cb8808c257f0a9178000466e3c1282dc6f SHA-256: 0f15453a864b461923ab84946a24ed78c955af9c21c3d8302b6953a8e03b055c
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 0.8889

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://smidgel.ru/pbw?utm_term=10+s%25C4%25B1n%25C4%25B1f+kimya+kazan%25C4%25B1m+testleri+%25C3%25A7%25C3%25B6z%25C3%25BCmleri+kar%25C4%25B1%25C5%259F%25C4%25B1mlar PDF link annotation
    • https://vukezozonobobex.weebly.com/uploads/1/3/1/3/131383599/fe866c2da5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459776/normal_5ffeb227644f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495837/normal_5fd100135a5f1.pdfIn PDF document text
    • https://venubitolaxi.weebly.com/uploads/1/3/4/3/134372432/2df4aa.pdfIn PDF document text
    • https://nitelozam.weebly.com/uploads/1/3/5/3/135308565/3376138.pdfIn PDF document text
    • https://wosumugip.weebly.com/uploads/1/3/4/8/134867897/2295455.pdfIn PDF document text
    • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/tifewolulivu-tijupili.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498883/normal_5fe3d9cc4642c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426810/normal_604badea54726.pdfIn PDF document text
    • https://boxotajisosuni.weebly.com/uploads/1/3/6/0/136086252/belejejane.pdfIn PDF document text
    • http://tarogifere.pbworks.com/w/file/fetch/144489942/how_to_install_built_in_camera_on_hp_laptop.pdfIn PDF document text
    • http://lipadune.pbworks.com/w/file/fetch/144414747/gogizofe.pdfIn PDF document text
    • http://mizunebapod.pbworks.com/w/file/fetch/144466386/navopikisuzenufupil.pdfIn PDF document text
    • http://xofitesu.pbworks.com/f/dovole.pdfIn PDF document text
    • http://guronavageba.pbworks.com/w/file/fetch/144506202/what_is_the_best_type_of_marlboro_cigarettes.pdfIn PDF document text
    • http://kikipudojuzo.pbworks.com/w/file/fetch/144529974/valeluveluzad.pdfIn PDF document text
    • http://fotikeralo.pbworks.com/f/dekewitatesadejesojiruma.pdfIn PDF document text
    • http://werinenimuta.pbworks.com/w/file/fetch/144528933/2019_kpss_lisans_trke_deneme.pdfIn PDF document text
    • http://jajafad.pbworks.com/w/file/fetch/144417534/gre_physics_practice_test_with_solutions.pdfIn PDF document text
    • http://tisowowuduwe.pbworks.com/f/28106939969.pdfIn PDF document text