Analysis

  • max time kernel
    125s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2022 19:56

General

  • Target

    applications.lnk

  • Size

    1KB

  • MD5

    61f4534b554463ef5a6c0695f78c1863

  • SHA1

    a0373390cdc6edce5af66b0c9657f9cd63d3ab78

  • SHA256

    201199f2481044b6f4252e0109d09bb7bd170715d401ed5762539992557455b7

  • SHA512

    79d38cf25d8bc012016ff737c7a3d9923bb831b731c3fe298030a887883d1b65cd67919e7a6658de74683b80af0cb303b1c3069fdb1eb10fd1293f1d997fbb98

Malware Config

Extracted

Family

bumblebee

Botnet

0109

C2

238.135.187.178:122

139.250.85.120:389

48.125.193.25:152

114.213.187.231:380

111.253.120.98:250

226.62.116.55:344

167.157.111.216:424

172.237.68.92:206

16.58.16.45:200

250.119.214.35:204

3.103.169.104:449

241.138.197.72:484

217.78.123.134:168

111.153.255.170:258

44.157.167.56:261

88.38.249.218:141

124.110.55.236:298

248.92.195.241:424

244.202.83.43:409

106.233.170.108:279

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\applications.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Windows\System32\odbcconf.exe
      "C:\Windows\System32\odbcconf.exe" /a {REGSVR HKpiLfqChJKPLc.dll}
      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 use of NtCreateThreadExHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/656-133-0x00000280E9B10000-0x00000280E9C26000-memory.dmp

    Filesize

    1.1MB

  • memory/656-134-0x00007FFC721A0000-0x00007FFC721B0000-memory.dmp

    Filesize

    64KB