bumblebee | 088c7d79d16c7d28686b65dff3aadae96dc71ebb47a0418b95dee58d2e4b76a7

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12-12-2022 17:27

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General

Target

share.bat
Size

2KB
MD5

5d370eb5c3b5d29c98d51e3a4e982a63
SHA1

040311e1d9f2077e0579f2b5b4d289cb12079341
SHA256

5154ad2319705806fb829e709008a1cb270dea2154d7b65cbd9dfe04768261e7
SHA512

d1af3e2391bf6a87f51a4f82aaa807ce07367bf24966fadd3580559309a7cb930baa4ffed72abea799e8c04b2cdf6fbdc2610b15e9fb3a7c9e07407b99684e53

Score

10^/10

bumblebee 1212 trojan

Malware Config

Extracted

Family

bumblebee

Botnet

1212

146.70.100.126:443

149.3.170.211:443

103.144.139.137:443

85.239.54.178:443

139.177.146.26:443

rc4.plain

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
3372	2PW9sUi9sE.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
3372	2PW9sUi9sE.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3372	2PW9sUi9sE.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4964	schtasks.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4928	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4928	taskkill.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 2436	4772	cmd.exe	80
PID 4772 wrote to memory of 2436	4772	cmd.exe	80
PID 4772 wrote to memory of 3184	4772	cmd.exe	81
PID 4772 wrote to memory of 3184	4772	cmd.exe	81
PID 4772 wrote to memory of 3372	4772	cmd.exe	82
PID 4772 wrote to memory of 3372	4772	cmd.exe	82
PID 4772 wrote to memory of 4964	4772	cmd.exe	84
PID 4772 wrote to memory of 4964	4772	cmd.exe	84
PID 4772 wrote to memory of 4928	4772	cmd.exe	85
PID 4772 wrote to memory of 4928	4772	cmd.exe	85

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\share.bat"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4772
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /K copy /y /b C:\Windows\System32\rundll32.exe C:\ProgramData\2PW9sUi9sE.exe
  2⤵
  PID:2436
- C:\Windows\system32\xcopy.exe
  xcopy /h /y strona_16.dll C:\ProgramData
  2⤵
  PID:3184
- C:\ProgramData\2PW9sUi9sE.exe
  "C:\ProgramData\2PW9sUi9sE.exe" C:\ProgramData\strona_16.dll,SetVPACon
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of NtCreateThreadExHideFromDebugger
  PID:3372
- C:\Windows\system32\schtasks.exe
  SCHTASKS /create /tn "SetConnect" /f /tr "cmd.exe /c C:\programdata\2PW9sUi9sE.exe C:\programdata\strona_16.dll,SetVPACon" /sc hourly /mo 1 /sd 01/01/2022 /st 00:00
  2⤵
  - Creates scheduled task(s)
  PID:4964
- C:\Windows\system32\taskkill.exe
  taskkill /F /im cmd.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4928

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

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\2PW9sUi9sE.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
C:\ProgramData\2PW9sUi9sE.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
C:\ProgramData\strona_16.dll

Filesize
1.2MB

MD5
97c712e90d567ef9f80a1d03ae69f07e

SHA1
c021b0d679e0a0597e748b5438dd15a13c190699

SHA256
c1b30ac4731197caf0ee49c76a9df568d53b630423f8a667417cad42b18d576b

SHA512
e37f16f5a97c6682b12b3ee5a71fbfce30eb8362610b4cd34c9e79c11ded4359a7ffedb7b6bcbdc505d62d452466d58f05a060d692a33586fbcb581183b3d5d5

Download Submit
C:\ProgramData\strona_16.dll

Filesize
1.2MB

MD5
97c712e90d567ef9f80a1d03ae69f07e

SHA1
c021b0d679e0a0597e748b5438dd15a13c190699

SHA256
c1b30ac4731197caf0ee49c76a9df568d53b630423f8a667417cad42b18d576b

SHA512
e37f16f5a97c6682b12b3ee5a71fbfce30eb8362610b4cd34c9e79c11ded4359a7ffedb7b6bcbdc505d62d452466d58f05a060d692a33586fbcb581183b3d5d5

Download Submit
memory/3372-141-0x0000015EF32D0000-0x0000015EF3419000-memory.dmp

Filesize
1.3MB

Download
memory/3372-142-0x0000015EF3000000-0x0000015EF3076000-memory.dmp

Filesize
472KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads