bumblebee | dbe4bfcec54587629aff611def62a726d0faae2ac3d1603b10b2bb477eb358e3

Resubmissions

02-12-2024 11:16

241202-ndkr3sxpdq 10

29-11-2024 12:55

241129-p5775awnhv 10

Analysis

max time kernel
556s
max time network
570s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
submitted
02-12-2024 11:16

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Report Analysis Logs

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 29 IoCs

flow	pid	Process
31	2360	rundll32.exe
39	2360	rundll32.exe
54	2360	rundll32.exe
58	2360	rundll32.exe
62	2360	rundll32.exe
68	2360	rundll32.exe
72	2360	rundll32.exe
75	2360	rundll32.exe
76	2360	rundll32.exe
78	2360	rundll32.exe
79	2360	rundll32.exe
81	2360	rundll32.exe
83	2360	rundll32.exe
84	2360	rundll32.exe
86	2360	rundll32.exe
90	2360	rundll32.exe
95	2360	rundll32.exe
97	2360	rundll32.exe
98	2360	rundll32.exe
100	2360	rundll32.exe
105	2360	rundll32.exe
107	2360	rundll32.exe
111	2360	rundll32.exe
114	2360	rundll32.exe
116	2360	rundll32.exe
117	2360	rundll32.exe
119	2360	rundll32.exe
120	2360	rundll32.exe
121	2360	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	cmd.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2360	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 820 wrote to memory of 2928	820	cmd.exe	83
PID 820 wrote to memory of 2928	820	cmd.exe	83
PID 2928 wrote to memory of 2360	2928	cmd.exe	84
PID 2928 wrote to memory of 2360	2928	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:820
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c DKyVKmgVSvviRl.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2928
- - C:\Windows\system32\rundll32.exe
    rundll32 aMLjTIhBvevLGx.dll,SendData
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    PID:2360

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/2360-0-0x000001F6113E0000-0x000001F611456000-memory.dmp

Filesize
472KB

Download
memory/2360-1-0x00007FFF8E58D000-0x00007FFF8E58E000-memory.dmp

Filesize
4KB

Download
memory/2360-2-0x000001F6115A0000-0x000001F6116E9000-memory.dmp

Filesize
1.3MB

Download
memory/2360-3-0x00007FFF8E4F0000-0x00007FFF8E6E5000-memory.dmp

Filesize
2.0MB

Download
memory/2360-6-0x000001F6115A0000-0x000001F6116E9000-memory.dmp

Filesize
1.3MB

Download
memory/2360-5-0x00007FFF8E4F0000-0x00007FFF8E6E5000-memory.dmp

Filesize
2.0MB

Download
memory/2360-4-0x00007FFF8E4F0000-0x00007FFF8E6E5000-memory.dmp

Filesize
2.0MB

Download
memory/2360-7-0x000001F6113E0000-0x000001F611456000-memory.dmp

Filesize
472KB

Download
memory/2360-8-0x00007FFF8E4F0000-0x00007FFF8E6E5000-memory.dmp

Filesize
2.0MB

Download
memory/2360-9-0x00007FFF8E58D000-0x00007FFF8E58E000-memory.dmp

Filesize
4KB

Download
memory/2360-10-0x000001F6115A0000-0x000001F6116E9000-memory.dmp

Filesize
1.3MB

Download