bumblebee | dbe4bfcec54587629aff611def62a726d0faae2ac3d1603b10b2bb477eb358e3

Analysis

max time kernel
138s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
submitted
29-11-2024 12:50

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General

Target

details.lnk

Score

10^/10

bumblebee 0411 loader

Malware Config

Extracted

Family

bumblebee

Botnet

0411

192.119.120.146:443

54.37.131.10:443

146.70.139.252:443

rc4.plain

Signatures

BumbleBee
BumbleBee is a loader malware written in C++.
loader bumblebee
Bumblebee family
bumblebee

Blocklisted process makes network request 6 IoCs

flow	pid	Process
33	4488	rundll32.exe
35	4488	rundll32.exe
39	4488	rundll32.exe
45	4488	rundll32.exe
46	4488	rundll32.exe
48	4488	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	cmd.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4488	rundll32.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4332 wrote to memory of 2672	4332	cmd.exe	83
PID 4332 wrote to memory of 2672	4332	cmd.exe	83
PID 2672 wrote to memory of 4488	2672	cmd.exe	84
PID 2672 wrote to memory of 4488	2672	cmd.exe	84

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\details.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4332
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c DKyVKmgVSvviRl.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\system32\rundll32.exe
    rundll32 aMLjTIhBvevLGx.dll,SendData
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    PID:4488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

memory/4488-0-0x0000019B90480000-0x0000019B904F6000-memory.dmp

Filesize
472KB

Download
memory/4488-2-0x0000019B91FC0000-0x0000019B92109000-memory.dmp

Filesize
1.3MB

Download
memory/4488-1-0x00007FFECCFED000-0x00007FFECCFEE000-memory.dmp

Filesize
4KB

Download
memory/4488-4-0x00007FFECCF50000-0x00007FFECD145000-memory.dmp

Filesize
2.0MB

Download
memory/4488-3-0x00007FFECCF50000-0x00007FFECD145000-memory.dmp

Filesize
2.0MB

Download
memory/4488-5-0x0000019B91FC0000-0x0000019B92109000-memory.dmp

Filesize
1.3MB

Download
memory/4488-6-0x0000019B90480000-0x0000019B904F6000-memory.dmp

Filesize
472KB

Download
memory/4488-7-0x00007FFECCF50000-0x00007FFECD145000-memory.dmp

Filesize
2.0MB

Download
memory/4488-8-0x0000019B91FC0000-0x0000019B92109000-memory.dmp

Filesize
1.3MB

Download