bumblebee | f2406ca9821dd1af9404128f5c2964f99bf1480317a398970c3fe46efd596ab0

Analysis

max time kernel
137s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
13-02-2023 19:00

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General

Target

cookies.bat
Size

1KB
MD5

489624f447bef97bf03de86b961b323c
SHA1

1100687d5d5fa1329c65baf7bd29afbd09e55d0a
SHA256

c92f574ccbdd97cad32bcd682bbc72f9565f0e73a6623128cfcc8d346dd4132e
SHA512

9ba1cdec5fc24749d7ad9d1c8c6c98e519a1e8c8ef9e5318cb6dd5389c1608a1d9ee6857af85a6129e605b5807d806e27e214aabe4ff23b7968922422d6bf3d2

Score

10^/10

bumblebee 102lg trojan

Malware Config

Extracted

Family

bumblebee

Botnet

102lg

146.70.29.237:443

205.185.113.34:443

23.106.223.182:443

103.144.139.146:443

rc4.plain

Signatures

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

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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
4236	u9OwF0LTWHo.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4236	u9OwF0LTWHo.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 6 IoCs

description	pid	Process	procid_target
PID 3804 wrote to memory of 4408	3804	cmd.exe	83
PID 3804 wrote to memory of 4408	3804	cmd.exe	83
PID 4408 wrote to memory of 1704	4408	cmd.exe	84
PID 4408 wrote to memory of 1704	4408	cmd.exe	84
PID 3804 wrote to memory of 4236	3804	cmd.exe	85
PID 3804 wrote to memory of 4236	3804	cmd.exe	85

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\cookies.bat"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3804
- C:\Windows\system32\cmd.exe
  cmd.exe /c start /b /min copy /Y C:\Windows\System32\rundll32.exe C:\ProgramData\u9OwF0LTWHo.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4408
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /K copy /Y C:\Windows\System32\rundll32.exe C:\ProgramData\u9OwF0LTWHo.exe
    3⤵
    PID:1704
- C:\ProgramData\u9OwF0LTWHo.exe
  "C:\ProgramData\u9OwF0LTWHo.exe" ambien.dll,stProgNew
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtCreateThreadExHideFromDebugger
  PID:4236

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

C:\ProgramData\u9OwF0LTWHo.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
C:\ProgramData\u9OwF0LTWHo.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
memory/4236-137-0x000001DD65820000-0x000001DD65981000-memory.dmp

Filesize
1.4MB

Download
memory/4236-138-0x000001DD65540000-0x000001DD655BF000-memory.dmp

Filesize
508KB

Download