General

  • Target

    iso.iso

  • Size

    4.2MB

  • Sample

    220912-y9xfvsebc4

  • MD5

    91d626d73fb0dbe45a28f7f49d890c3f

  • SHA1

    b218beed30ab0a02db2024100c7a181f16121365

  • SHA256

    033099c84bf080da3cae5075180d513861b9b993fef92ff948673ac8e7b23f19

  • SHA512

    b172891f4efb3754a6c13e287f13128b94cb28c2ad441935e8eba2597312816477d41fa2e17277764fc32f041fe4d45072f2c8616b7ea7d8053673c59ab96a73

  • SSDEEP

    24576:HKb9bASjbJSeycW5gLI+kEP02C7bswQqNLEueh0GHSeUhXedT3wH0zTgjX7Mn9Il:qpb2Pb3jUNGVJgvIOFkinJ/5aU9/Y

Malware Config

Extracted

Family

bumblebee

Botnet

1209

C2

142.11.211.32:443

146.59.116.49:443

192.236.155.219:443

rc4.plain

Targets

    • Target

      iso.iso

    • Size

      4.2MB

    • MD5

      91d626d73fb0dbe45a28f7f49d890c3f

    • SHA1

      b218beed30ab0a02db2024100c7a181f16121365

    • SHA256

      033099c84bf080da3cae5075180d513861b9b993fef92ff948673ac8e7b23f19

    • SHA512

      b172891f4efb3754a6c13e287f13128b94cb28c2ad441935e8eba2597312816477d41fa2e17277764fc32f041fe4d45072f2c8616b7ea7d8053673c59ab96a73

    • SSDEEP

      24576:HKb9bASjbJSeycW5gLI+kEP02C7bswQqNLEueh0GHSeUhXedT3wH0zTgjX7Mn9Il:qpb2Pb3jUNGVJgvIOFkinJ/5aU9/Y

    • BumbleBee

      BumbleBee is a webshell malware written in C++.

    • Enumerates VirtualBox registry keys

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Looks for VirtualBox Guest Additions in registry

    • Checks BIOS information in registry

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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Suspicious use of NtCreateThreadExHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

4
T1497

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

4
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Tasks