Analysis

  • max time kernel
    90s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-09-2022 17:43

General

  • Target

    Documents.lnk

  • Size

    1KB

  • MD5

    62c2908779e9d600b7f173349b4e0336

  • SHA1

    6cdb058004c035650018a2467c61ac9c70c103b4

  • SHA256

    1b566c56ec82909b3022ca375323a9fee0ccbbd86a8a8735ffc352f4a035b969

  • SHA512

    2d9edca7584c4abcd741b4b206536dd55165b2a08e9c634d7c98dd29885f66eb3ebf112581e03fa058f3332aff7dc238c1b14e4818a9bf715c7a5360a6c3cf42

Malware Config

Extracted

Family

bumblebee

Botnet

0709lg

C2

253.99.168.157:367

114.13.1.160:226

34.113.116.119:165

204.227.208.101:422

90.128.124.215:224

95.45.92.109:292

211.135.230.28:111

199.40.74.224:435

85.230.106.25:390

189.255.181.14:334

213.227.154.169:443

232.196.162.145:304

214.20.238.201:145

87.216.172.198:397

171.201.228.43:398

87.63.40.34:125

120.83.66.17:278

34.65.29.63:243

45.153.240.94:443

232.179.211.66:291

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\Documents.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:372
    • C:\Windows\System32\odbcconf.exe
      "C:\Windows\System32\odbcconf.exe" /a {REGSVR ZRoeaQxZZMZDVb.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:2260

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2260-136-0x000002B640880000-0x000002B640996000-memory.dmp

    Filesize

    1.1MB

  • memory/2260-137-0x00007FFD0DE20000-0x00007FFD0DE30000-memory.dmp

    Filesize

    64KB