bumblebee | 6b2e4c9b0579938ce73bd39874b58a8f67c24f49a188f1f0ae6bcde26fb8b084

Analysis

max time kernel
135s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
01/11/2022, 21:42

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General

Target

required info.lnk
Size

995B
MD5

08f421202c12f81c8fc56b4abd54f8c0
SHA1

00484c7d6fe78c4d6c85e2ee92d6edd8e01bca0a
SHA256

6dab064f55ba8832d0cb9afa1658da288e4c361f5c72df963c14b4321e9c3799
SHA512

aec8bb173cfc61fe0ac9cdd80c320555652d1b6aade4adcfac8f78f1d06d4bc0f59bf2df876a9a8d617ac27430615acc4661af90fa2812768cf450fa1dd9981f

Score

10^/10

bumblebee 0111 trojan

Malware Config

Extracted

Family

bumblebee

Botnet

0111

102.151.221.33:443

104.244.77.61:443

212.114.52.124:443

23.106.160.141:443

198.98.56.242:443

23.108.57.5:443

rc4.plain

Signatures

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

Blocklisted process makes network request 6 IoCs

flow	pid	Process
19	220	rundll32.exe
29	220	rundll32.exe
34	220	rundll32.exe
36	220	rundll32.exe
37	220	rundll32.exe
39	220	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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	cmd.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
220	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 796 wrote to memory of 4008	796	cmd.exe	82
PID 796 wrote to memory of 4008	796	cmd.exe	82
PID 4008 wrote to memory of 220	4008	cmd.exe	83
PID 4008 wrote to memory of 220	4008	cmd.exe	83

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\required info.lnk"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:796
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c eLWCBMEWwlzsBt.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4008
- - C:\Windows\system32\rundll32.exe
    rundll32 BOiQKiECaUzWqF.dll,RemoveSettings
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    PID:220

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/220-134-0x000001F098B70000-0x000001F098CB9000-memory.dmp

Filesize
1.3MB

Download
memory/220-135-0x000001F0989B0000-0x000001F098A26000-memory.dmp

Filesize
472KB

Download