bumblebee | f533f98a7ffad645b043ccb7fc806bb13f69c60229cfde5eec04a04bf758d6ae

Analysis

max time kernel
144s
max time network
153s
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 20:59

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General

Target

required info.lnk
Size

995B
MD5

f0555c679b00d40934f69bbbd0f9ba38
SHA1

a746c1aa481e7cd9667b07755205e38a6b659308
SHA256

c60f4fe7007786b401e203a3429810666cc9685447bea269605dc97e082b5169
SHA512

bc3e47cc9f6bad9ced9c6f0890c2397db4df2010d64ff1a7d9214fff5bf99927959763854cc1d323a5c43a936b8c34b035a9f59daa6732fe87c1ceb5cd3bdb2f

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
29	4896	rundll32.exe
34	4896	rundll32.exe
36	4896	rundll32.exe
38	4896	rundll32.exe
39	4896	rundll32.exe
40	4896	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
4896	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 3108 wrote to memory of 4796	3108	cmd.exe	82
PID 3108 wrote to memory of 4796	3108	cmd.exe	82
PID 4796 wrote to memory of 4896	4796	cmd.exe	83
PID 4796 wrote to memory of 4896	4796	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:3108
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c AxRHrzxRUiEjUG.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4796
- - C:\Windows\system32\rundll32.exe
    rundll32 XzdVAVxwxRDMJS.dll,RemoveSettings
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    PID:4896

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

memory/4896-134-0x000001F3502E0000-0x000001F350429000-memory.dmp

Filesize
1.3MB

Download
memory/4896-135-0x000001F34E730000-0x000001F34E7A6000-memory.dmp

Filesize
472KB

Download