bumblebee | 30e5932e9173ed92579dc6549149d37cf949e3276d6ca33e7c224ae8546098b3

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
10-11-2022 16:19

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General

Target

project details.lnk
Size

995B
MD5

8c1154a1673b2f2839b02647c6b2cb90
SHA1

06d134201da42ad5096f1e71fd67b5b912a06cb2
SHA256

cb19b2eb0143e6def46886c9c3e32e4fdbd22bd577d67bb9a16b437183869e0f
SHA512

3fb04105d57344f0148097cbf9d5f52f694d65e9d3c5a41614b3fed3f0f2b30bdc5b9d3f26674b228326c714c067b2d40a013ff342fef337055fa129ea1ca6d9

Score

10^/10

bumblebee 1011 trojan

Malware Config

Extracted

Family

bumblebee

Botnet

1011

104.219.233.38:443

192.119.120.22:443

146.59.116.242:443

rc4.plain

Signatures

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

Blocklisted process makes network request 7 IoCs

flow	pid	Process
30	4640	rundll32.exe
33	4640	rundll32.exe
35	4640	rundll32.exe
37	4640	rundll32.exe
38	4640	rundll32.exe
39	4640	rundll32.exe
40	4640	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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	cmd.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4640	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 904 wrote to memory of 3556	904	cmd.exe	79
PID 904 wrote to memory of 3556	904	cmd.exe	79
PID 3556 wrote to memory of 4640	3556	cmd.exe	80
PID 3556 wrote to memory of 4640	3556	cmd.exe	80

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\project details.lnk"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c RzTgomzVMyYvLc.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3556
- - C:\Windows\system32\rundll32.exe
    rundll32 nCguwHABqhXZAo.dll,mruAlloc
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    PID:4640

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/4640-134-0x0000022C5E2D0000-0x0000022C5E419000-memory.dmp

Filesize
1.3MB

Download
memory/4640-135-0x0000022C5E110000-0x0000022C5E183000-memory.dmp

Filesize
460KB

Download