General

  • Target

    TotalAV3.exe

  • Size

    37.3MB

  • Sample

    241021-tclkwaycrb

  • MD5

    c1f8d9e8bfa15bbf39bab6682e763dbe

  • SHA1

    ee856497da29745ec76e44bee935c5b424601e8f

  • SHA256

    92cab6e03f3f45e5ccab73f604cb9618d2036393be00e374b3bc2e59fa96faf0

  • SHA512

    1b5adf377295f345aa869d9d9187f22569ea1ae5745674241cd660beeb71a21bdd0489adfe0195cd0d8e58d25dd0a3c3ba39867a0125b90e5c45a94173d894d9

  • SSDEEP

    786432:o3on1HvSzxAMN9FZArYsKptPvmcB7OZxuc:oYn1HvSpN9XmWpljc

Malware Config

Targets

    • Target

      TotalAV3.exe

    • Size

      37.3MB

    • MD5

      c1f8d9e8bfa15bbf39bab6682e763dbe

    • SHA1

      ee856497da29745ec76e44bee935c5b424601e8f

    • SHA256

      92cab6e03f3f45e5ccab73f604cb9618d2036393be00e374b3bc2e59fa96faf0

    • SHA512

      1b5adf377295f345aa869d9d9187f22569ea1ae5745674241cd660beeb71a21bdd0489adfe0195cd0d8e58d25dd0a3c3ba39867a0125b90e5c45a94173d894d9

    • SSDEEP

      786432:o3on1HvSzxAMN9FZArYsKptPvmcB7OZxuc:oYn1HvSpN9XmWpljc

    • UAC bypass

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • An obfuscated cmd.exe command-line is typically used to evade detection.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

MITRE ATT&CK Enterprise v15

Tasks