bumblebee | 40c255ea500f2de3136057c9ba88dd3875f7b15bd2fb72540f9f6d85bcc755e4

Analysis

max time kernel
143s
max time network
159s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
08-11-2022 19:06

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General

Target

project details.lnk
Size

995B
MD5

602cd18f1efe7bb632476465912c9b1c
SHA1

a2f5f20df297f37fc2bb90156db971a3092b3427
SHA256

6fb4c22af244bdf6cb2bb520086dd48c01ba547f11b57ffd6c7f6c9aa09af639
SHA512

6810bcc2503ef14e42ce6997463375d7c92431774dc0afc22a2e7c5bfb7e1bdb7facaf1b91549c108fc10a4ae7623aa5c0178aad291d70cc30a76f6e495d59d4

Score

10^/10

bumblebee 0811 trojan

Malware Config

Extracted

Family

bumblebee

Botnet

0811

104.219.233.127:443

192.236.194.101:443

146.70.161.82:443

rc4.plain

Signatures

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

Blocklisted process makes network request 6 IoCs

flow	pid	Process
1	1336	rundll32.exe
3	1336	rundll32.exe
4	1336	rundll32.exe
5	1336	rundll32.exe
6	1336	rundll32.exe
7	1336	rundll32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1336	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 6 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 660	1980	cmd.exe	29
PID 1980 wrote to memory of 660	1980	cmd.exe	29
PID 1980 wrote to memory of 660	1980	cmd.exe	29
PID 660 wrote to memory of 1336	660	cmd.exe	30
PID 660 wrote to memory of 1336	660	cmd.exe	30
PID 660 wrote to memory of 1336	660	cmd.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\project details.lnk"
1⤵
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c XAnbADuUedJlBE.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:660
- - C:\Windows\system32\rundll32.exe
    rundll32 uDzpJZuAIMIPqQ.dll,PUpdate
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    PID:1336

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1336-93-0x0000000001FE0000-0x0000000002129000-memory.dmp

Filesize
1.3MB

Download
memory/1336-94-0x0000000000190000-0x0000000000206000-memory.dmp

Filesize
472KB

Download
memory/1980-54-0x000007FEFC2C1000-0x000007FEFC2C3000-memory.dmp

Filesize
8KB

Download