Analysis

  • max time kernel
    79s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    15/06/2022, 13:40

General

  • Target

    inf.bat

  • Size

    41B

  • MD5

    993ea3729ef89775410c1f8a5e4a468f

  • SHA1

    3f5b69eb4d54ee92493f211e13ffb89cda914650

  • SHA256

    1e78385d81b5177c733c7e2ed2f91d5400fd526c786cac089aef6e6f6ec2f08e

  • SHA512

    14564f14807a341b161a753da27af790275e2dd0803c37c294c52d8882962ab0f774775417a80beacef4fb07cc36cc683077622d5851b5733005791a5d3abdff

Malware Config

Extracted

Family

bumblebee

Botnet

146l

C2

242.165.212.79:339

162.144.249.150:239

63.122.120.151:268

144.52.138.51:193

18.215.29.142:436

115.239.67.202:380

255.11.235.99:426

213.203.201.199:307

143.117.20.123:425

141.98.168.70:443

174.150.214.40:426

133.133.249.24:204

126.68.7.249:422

103.175.16.107:443

146.70.124.77:443

154.56.0.100:443

180.184.129.160:223

28.78.74.145:427

108.28.254.44:399

115.103.22.1:153

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.

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

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\inf.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Windows\system32\rundll32.exe
      rundll32 information.dll,hKOgtkmCis
      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:1000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1000-131-0x0000018181410000-0x0000018181527000-memory.dmp

    Filesize

    1.1MB

  • memory/1000-132-0x00007FFB74520000-0x00007FFB74530000-memory.dmp

    Filesize

    64KB