bumblebee | e7e68c5e7d8d244f57455f83148f574094d216a634cb2259880c0910088402a4

Analysis

max time kernel
147s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
10-02-2023 21:08

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General

Target

project information.lnk
Size

975B
MD5

c6b475cbf0af53b086df880b42c21409
SHA1

e8aa3b7fc99e14f92bf369efdac3f2b558914915
SHA256

ae981b4dd9a5b4a4d8a21250244216dc7e9ac03bd54048527f31d3554b66fad1
SHA512

8a9031fb1f0238c92ebf6d432b950c7f806dbb085a288f6bc0c120ff9f779a670169c320aac48784cad64b235fee845bc1e04037f18dbeb2dc5a3fcf30397dc7

Score

10^/10

bumblebee 102lg trojan

Malware Config

Extracted

Family

bumblebee

Botnet

102lg

146.70.29.237:443

205.185.113.34:443

23.106.223.182:443

103.144.139.146:443

rc4.plain

Signatures

BumbleBee
BumbleBee is a webshell malware written in C++.
trojan bumblebee

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
5072	2XvdXuWL0hw1.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
5072	2XvdXuWL0hw1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 4972	4860	cmd.exe	83
PID 4860 wrote to memory of 4972	4860	cmd.exe	83
PID 4972 wrote to memory of 1952	4972	cmd.exe	84
PID 4972 wrote to memory of 1952	4972	cmd.exe	84
PID 1952 wrote to memory of 880	1952	cmd.exe	85
PID 1952 wrote to memory of 880	1952	cmd.exe	85
PID 4972 wrote to memory of 5072	4972	cmd.exe	86
PID 4972 wrote to memory of 5072	4972	cmd.exe	86

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\project information.lnk"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c math.bat
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4972
- - C:\Windows\system32\cmd.exe
    cmd.exe /c start /b /min copy /Y C:\Windows\System32\rundll32.exe C:\ProgramData\2XvdXuWL0hw1.exe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1952
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /K copy /Y C:\Windows\System32\rundll32.exe C:\ProgramData\2XvdXuWL0hw1.exe
      4⤵
      PID:880
- - C:\ProgramData\2XvdXuWL0hw1.exe
    "C:\ProgramData\2XvdXuWL0hw1.exe" features.dll,stProgNew
    3⤵
    - Executes dropped EXE
    - Suspicious use of NtCreateThreadExHideFromDebugger
    PID:5072

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\2XvdXuWL0hw1.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
C:\ProgramData\2XvdXuWL0hw1.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
memory/5072-138-0x0000029D6E3E0000-0x0000029D6E541000-memory.dmp

Filesize
1.4MB

Download
memory/5072-139-0x0000029D6E200000-0x0000029D6E27F000-memory.dmp

Filesize
508KB

Download