Analysis

  • max time kernel
    42s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27/06/2022, 18:17

General

  • Target

    Project Requirements.lnk

  • Size

    1KB

  • MD5

    256a844abb597fb13643e29a7936810b

  • SHA1

    2b0ab128fc091b5b7c81d776b606b1cff66f5c62

  • SHA256

    5160437927e46c3d9daf1fdff38f52c8d64cb639e1a3678da222e3ab180bce36

  • SHA512

    a4e1a08fd3a9ec265fa134e194d7549f5aa82d50323b91d86b8dd5f5e7de689726b9caa70ef0e4b1ebcad7da85cfc89c84bb9e801f10419453b822e9eb0bbfdf

Malware Config

Extracted

Family

bumblebee

Botnet

246a

C2

231.215.229.228:485

69.52.231.230:347

239.99.55.244:383

128.197.89.141:438

100.75.172.149:488

23.82.141.11:443

107.77.228.163:260

88.232.241.45:176

51.83.253.131:443

80.194.203.32:143

18.248.93.197:110

200.194.145.202:359

154.56.0.111:443

154.207.124.132:129

174.104.34.167:296

84.224.237.39:382

195.250.7.94:370

237.251.89.198:174

81.39.2.175:407

139.203.193.38:443

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

  • Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 3 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 41 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\Project Requirements.lnk"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1160
    • C:\Windows\System32\odbcconf.exe
      "C:\Windows\System32\odbcconf.exe" -f file.rsp
      2⤵
      • 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
      • Identifies Wine through registry keys
      • Suspicious behavior: EnumeratesProcesses
      PID:1952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1160-54-0x000007FEFBD01000-0x000007FEFBD03000-memory.dmp

    Filesize

    8KB

  • memory/1952-92-0x00000000021B0000-0x00000000022C6000-memory.dmp

    Filesize

    1.1MB