General

  • Target

    Malware-1.zip

  • Size

    1.6MB

  • Sample

    220921-amhr7aeff2

  • MD5

    680c19b0ecfc417961d2c0d2d1588a09

  • SHA1

    13b0d65325d029a47e8700814799be54046f8ce6

  • SHA256

    428b46215b5c992fd7aa4d3e6edabce901928bad7231050eda6b1a64344e5854

  • SHA512

    ea1db3b45fe38508234df04d83b31c3f0a48b31839fbbbaa84aa12829f52d76c63d2227fff7e26fe7c279ede28bf939b2718bd47e9d0874ab2a6d9af98633d20

  • SSDEEP

    49152:k9EzpqzbJQntGg5Iqq/YbOcXDqYVCmNxwsSr:kACbJgoQpq/YKczq6Cmzm

Malware Config

Extracted

Family

bumblebee

Botnet

1909

C2

108.177.235.29:443

23.106.160.117:443

23.106.215.133:443

rc4.plain

Targets

    • Target

      Run-DLL.bat

    • Size

      34B

    • MD5

      396374ee917bc1abedd996c8152a4454

    • SHA1

      dd69c36489b15a4057d8cceef4b1ff3fad4f8a2a

    • SHA256

      5663fcbbdbfdd1b78cee360919363009cdeaa58189ce5aec87d2014f02cc4001

    • SHA512

      3a3e3e7015a9818741d0641538bf6b0f77066b206ebc0f8b76127386b79ab05993ebb9a35767f22bac02540ec6d6a686c8ed28c51706b4b4e7f9c7faa1012b5d

    • 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.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Target

      nWysXc.bin

    • Size

      3.6MB

    • MD5

      3ad465cc538b57026aa28b1157885621

    • SHA1

      1715b6a42f9cd1ed6ac0789d3255d9cb5b83bb74

    • SHA256

      8fbe7927d62938479125474d0e634c5e50d88a47beb6e802d5ca8ef52cd3c021

    • SHA512

      22425364d813bfcb58ac87cec9f575265fb2b26046dab664bcda649a598e0cd05b9e84d7fe32ae7471d3f3882eb0f931de7bdd318debd2c7f54fe332a824edbf

    • SSDEEP

      24576:2BeR8J1ZadeRT8E/xRm8P2IHzYQEitobudhkIJvHadqG6p02Pd0p7OMlh72Mm3Dl:4i8JradeRQG

    Score
    3/10

MITRE ATT&CK Enterprise v6

Tasks