bumblebee | e7e68c5e7d8d244f57455f83148f574094d216a634cb2259880c0910088402a4

Analysis

max time kernel
138s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
10-02-2023 21:08

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General

Target

math.bat
Size

1KB
MD5

ae315719f9e410b80ae2c059483ae3ad
SHA1

aaea22f5d865f44d904f344d82f125455d4c87ef
SHA256

f7a5e8aa213fc7cab3428f935c73e54fa5f7af07c118cb8355edaf02ebaef749
SHA512

097c721573bb6673e359ab487e46610f3bdcb767b5161d78f7cd1413136b35562294b9333421966104ba730ba18b1f12bf9f6ead9c340c5f082f81b3b9b25471

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
5088	2XvdXuWL0hw1.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
5088	2XvdXuWL0hw1.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 3856 wrote to memory of 4340	3856	cmd.exe	82
PID 3856 wrote to memory of 4340	3856	cmd.exe	82
PID 4340 wrote to memory of 3400	4340	cmd.exe	83
PID 4340 wrote to memory of 3400	4340	cmd.exe	83
PID 3856 wrote to memory of 5088	3856	cmd.exe	84
PID 3856 wrote to memory of 5088	3856	cmd.exe	84

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\math.bat"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3856
- C:\Windows\system32\cmd.exe
  cmd.exe /c start /b /min copy /Y C:\Windows\System32\rundll32.exe C:\ProgramData\2XvdXuWL0hw1.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4340
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /K copy /Y C:\Windows\System32\rundll32.exe C:\ProgramData\2XvdXuWL0hw1.exe
    3⤵
    PID:3400
- C:\ProgramData\2XvdXuWL0hw1.exe
  "C:\ProgramData\2XvdXuWL0hw1.exe" features.dll,stProgNew
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtCreateThreadExHideFromDebugger
  PID:5088

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\2XvdXuWL0hw1.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
C:\ProgramData\2XvdXuWL0hw1.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
memory/5088-138-0x0000016A7DEC0000-0x0000016A7E021000-memory.dmp

Filesize
1.4MB

Download
memory/5088-139-0x0000016A7C360000-0x0000016A7C3DF000-memory.dmp

Filesize
508KB

Download