Overview

overview

10

Static

static

3

Nursultan.exe

windows10-2004-x64

10

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General

  • Target

    Nursultan.exe

  • Size

    13.3MB

  • Sample

    240709-189e5s1cna

  • MD5

    f6c0feffe54fa282026b99660ee2f36e

  • SHA1

    1df776d7ee9fca88331dd7451704811ffaaeeca9

  • SHA256

    a8e15ff3f763f5f153b46ba983847396c121e055942473863aaf40368e62c198

  • SHA512

    bb14c616b5e0dd6259e24ce8a9c2e6f5fd5e40518c8f13a200b52330c56465620460d24b2f820b34615b9120fbeb8d366bfc80b7d6ab88d8adfcf3e7e19afe23

  • SSDEEP

    196608:nB2xmjsScoe5Q1QmUrctfXJqsg/WAGlBE32no2qouSgiKB0nOgM8pg50d1/Kc6IX:imIFTmUIwsgCm3t2GyKG5jMtIQvA9

Score
10/10
umbralexecutionspywarestealer

Malware Config

Targets

    • Target

      Nursultan.exe

    • Size

      13.3MB

    • MD5

      f6c0feffe54fa282026b99660ee2f36e

    • SHA1

      1df776d7ee9fca88331dd7451704811ffaaeeca9

    • SHA256

      a8e15ff3f763f5f153b46ba983847396c121e055942473863aaf40368e62c198

    • SHA512

      bb14c616b5e0dd6259e24ce8a9c2e6f5fd5e40518c8f13a200b52330c56465620460d24b2f820b34615b9120fbeb8d366bfc80b7d6ab88d8adfcf3e7e19afe23

    • SSDEEP

      196608:nB2xmjsScoe5Q1QmUrctfXJqsg/WAGlBE32no2qouSgiKB0nOgM8pg50d1/Kc6IX:imIFTmUIwsgCm3t2GyKG5jMtIQvA9

    Score
    10/10
    umbralexecutionspywarestealer

    • Detect Umbral payload

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

      stealerumbral

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Drops file in Drivers directory

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks