General

  • Target

    MicrosoftToolkit.exe

  • Size

    317.1MB

  • Sample

    240624-km3gpstdkh

  • MD5

    d3086e8a000add3d507a72d464e82e4b

  • SHA1

    16de80b98ac8cbb17863662fa1d02b6cd3151628

  • SHA256

    2a9b1c1f730c4146ff4356e3c5b6329ff5ea6f022d51146b61df8d276afd90df

  • SHA512

    6ed6edd5bc1604bdaecbb2b2181bdc5820d53d90477f47980aa14bbc1c081c0e178b524bb972e13df6fa134403d7ff3ac6fd6772857c32f69f7dd0efef0a839e

  • SSDEEP

    196608:WXnfk307gaHtQJhl4b9m/yNhnrH1PY0Zh4e:WXn830cI+lr/yNhnrVPzh

Malware Config

Targets

    • Target

      MicrosoftToolkit.exe

    • Size

      317.1MB

    • MD5

      d3086e8a000add3d507a72d464e82e4b

    • SHA1

      16de80b98ac8cbb17863662fa1d02b6cd3151628

    • SHA256

      2a9b1c1f730c4146ff4356e3c5b6329ff5ea6f022d51146b61df8d276afd90df

    • SHA512

      6ed6edd5bc1604bdaecbb2b2181bdc5820d53d90477f47980aa14bbc1c081c0e178b524bb972e13df6fa134403d7ff3ac6fd6772857c32f69f7dd0efef0a839e

    • SSDEEP

      196608:WXnfk307gaHtQJhl4b9m/yNhnrH1PY0Zh4e:WXn830cI+lr/yNhnrVPzh

    • Possible privilege escalation attempt

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks installed software on the system

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

File and Directory Permissions Modification

1
T1222

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

5
T1012

System Information Discovery

5
T1082

Collection

Data from Local System

1
T1005

Tasks