bumblebee | e731a9904849499018e7761354c7eee9ffd8bd68f32a4eaad75311e342066ac7

Analysis

max time kernel
140s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
17-11-2022 20:17

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General

Target

project details.lnk
Size

995B
MD5

8c58b17748b7acd6158f3d604997e591
SHA1

8501dd4d0f7ff82474e01faa3201e3fc03a14fd0
SHA256

91dd90e5cfd696089fce2e79f4caacd691fd6488ca2ff821bb1b740805826b94
SHA512

355a641308634de1fbfbf7300de3736c39f9fa233a59589f70ec1c051e08ad2a495c4e6c962e9aa130a5a741ba79ad9e3367e78ebc43cdcc32e39ac8f5f37c52

Score

10^/10

bumblebee 1711 trojan

Malware Config

Extracted

Family

bumblebee

Botnet

1711

193.200.16.175:443

54.37.130.195:443

64.44.97.58:443

rc4.plain

Signatures

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

Blocklisted process makes network request 6 IoCs

flow	pid	Process
18	1912	rundll32.exe
23	1912	rundll32.exe
26	1912	rundll32.exe
28	1912	rundll32.exe
32	1912	rundll32.exe
33	1912	rundll32.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	cmd.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1912	rundll32.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 4 IoCs

description	pid	Process	procid_target
PID 4144 wrote to memory of 3028	4144	cmd.exe	83
PID 4144 wrote to memory of 3028	4144	cmd.exe	83
PID 3028 wrote to memory of 1912	3028	cmd.exe	84
PID 3028 wrote to memory of 1912	3028	cmd.exe	84

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\project details.lnk"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4144
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c DyNNDCUAhTtInE.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3028
- - C:\Windows\system32\rundll32.exe
    rundll32 aBZbMXVgKCtmcQ.dll,CheckSettings
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    PID:1912

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

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Downloads

memory/1912-134-0x000001B755ED0000-0x000001B756019000-memory.dmp

Filesize
1.3MB

Download
memory/1912-135-0x000001B755CA0000-0x000001B755D18000-memory.dmp

Filesize
480KB

Download