General

  • Target

    ZoomInstallerFull.msi

  • Size

    25.9MB

  • Sample

    230323-l4my1sgh3z

  • MD5

    8e6132ab97c32046c10b4e38a9105c75

  • SHA1

    aa90e1438dc791d241b8668eecb3e3f344759542

  • SHA256

    130ec3dc6a89f40283c30557752d8cfc2fbf4cf364e8d9ec998af8fc0718448a

  • SHA512

    aedc83b294523471a8f608cc998a6ab6c2045c71a77c0c007d135fb5f6ca65ba5b9bf5fbd6e52bbe85146213bb8efff29657052355504498cb8aebe30d4eab77

  • SSDEEP

    786432:lQrpQ7w8q9m0xOPhXvN2A2sAPk3W23hykVXN:lQr27l0UZ/NV0k3H3UCXN

Malware Config

Extracted

Family

bumblebee

rc4.plain

Extracted

Family

bumblebee

Botnet

zm22103

C2

107.189.1.219:443

45.66.248.64:443

194.135.33.90:443

23.106.215.17:443

146.70.152.221:443

64.44.102.202:443

rc4.plain

Targets

    • Target

      ZoomInstallerFull.msi

    • Size

      25.9MB

    • MD5

      8e6132ab97c32046c10b4e38a9105c75

    • SHA1

      aa90e1438dc791d241b8668eecb3e3f344759542

    • SHA256

      130ec3dc6a89f40283c30557752d8cfc2fbf4cf364e8d9ec998af8fc0718448a

    • SHA512

      aedc83b294523471a8f608cc998a6ab6c2045c71a77c0c007d135fb5f6ca65ba5b9bf5fbd6e52bbe85146213bb8efff29657052355504498cb8aebe30d4eab77

    • SSDEEP

      786432:lQrpQ7w8q9m0xOPhXvN2A2sAPk3W23hykVXN:lQr27l0UZ/NV0k3H3UCXN

    • BumbleBee

      BumbleBee is a webshell malware written in C++.

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Checks system information in the registry

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

    • Suspicious use of NtCreateThreadExHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks