bumblebee | da2b5721da210937936fff0991248b7e4acc5f15a3dcbaccca28705404f2ae05

General

Target

doc.lnk
Size

1KB
MD5

46f0b2e9fb03af73e28bff1c9d22c2bf
SHA1

5cedb40f12bbcfe46d7ffed7935ae3908ef12b23
SHA256

cf1a8acfb8dc6e9bd840d0e4e4a4e4272b376452677b66f1d49bf318166a2586
SHA512

d1e08d24141ee9bf4b065f82ad0cc6574266d232ad508294d18a931624981848b17a79ba9414f81a940053254120aff27a026b8d74ad256f1a6b3c3eee32728d

Score

10^/10

bumblebee 0812 trojan

Malware Config

Extracted

Family

bumblebee

Botnet

0812

C2

86.106.87.135:443

51.83.248.182:443

23.82.128.116:443

rc4.plain

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
5008	KIH0o7s0zWO1hL.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
5008	KIH0o7s0zWO1hL.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
5008	KIH0o7s0zWO1hL.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
536	schtasks.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4584	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4584	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4372 wrote to memory of 2324	4372	cmd.exe	82
PID 4372 wrote to memory of 2324	4372	cmd.exe	82
PID 2324 wrote to memory of 4128	2324	cmd.exe	83
PID 2324 wrote to memory of 4128	2324	cmd.exe	83
PID 2324 wrote to memory of 4876	2324	cmd.exe	84
PID 2324 wrote to memory of 4876	2324	cmd.exe	84
PID 2324 wrote to memory of 5008	2324	cmd.exe	85
PID 2324 wrote to memory of 5008	2324	cmd.exe	85
PID 2324 wrote to memory of 536	2324	cmd.exe	87
PID 2324 wrote to memory of 536	2324	cmd.exe	87
PID 2324 wrote to memory of 4584	2324	cmd.exe	88
PID 2324 wrote to memory of 4584	2324	cmd.exe	88

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\doc.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4372
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c Article.bat
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /K copy /y /b C:\Windows\System32\rundll32.exe C:\ProgramData\KIH0o7s0zWO1hL.exe
    3⤵
    PID:4128
- - C:\Windows\system32\xcopy.exe
    xcopy /h /y storage.dll C:\ProgramData
    3⤵
    PID:4876
- - C:\ProgramData\KIH0o7s0zWO1hL.exe
    "C:\ProgramData\KIH0o7s0zWO1hL.exe" C:\ProgramData\storage.dll,InitMainPath
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of NtCreateThreadExHideFromDebugger
    PID:5008
- - C:\Windows\system32\schtasks.exe
    SCHTASKS /create /tn "NetworkStat" /f /tr "cmd.exe /c C:\programdata\KIH0o7s0zWO1hL.exe C:\programdata\storage.dll,InitMainPath" /sc hourly /mo 1 /sd 01/01/2022 /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:536
- - C:\Windows\system32\taskkill.exe
    taskkill /F /im cmd.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4584

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\KIH0o7s0zWO1hL.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
C:\ProgramData\KIH0o7s0zWO1hL.exe

Filesize
70KB

MD5
ef3179d498793bf4234f708d3be28633

SHA1
dd399ae46303343f9f0da189aee11c67bd868222

SHA256
b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa

SHA512
02aff154762d7e53e37754f878ce6aa3f4df5a1eb167e27f13d9762dced32bec892bfa3f3314e3c6dce5998f7d3c400d7d0314b9326eedcab72207c60b3d332e

Download Submit
C:\ProgramData\storage.dll

Filesize
1.5MB

MD5
a9af7ea12a65c448f23e591416118c44

SHA1
573d94055a4318e7588e3e226f34d09c696e1902

SHA256
6361f2ba78f49ebdcfc8970ed581fc0f4764f7a03cb5c8a0362c59e05c4b51e6

SHA512
d47d00511389d8acd5654572631c669c2d83ce9b5dd6b78d09cd36ce95eee5275931939f2bdd7c0c84b08a427c30051440e43ca8b5a29245ac8e77c2bf4f6c97

Download Submit
C:\ProgramData\storage.dll

Filesize
1.5MB

MD5
a9af7ea12a65c448f23e591416118c44

SHA1
573d94055a4318e7588e3e226f34d09c696e1902

SHA256
6361f2ba78f49ebdcfc8970ed581fc0f4764f7a03cb5c8a0362c59e05c4b51e6

SHA512
d47d00511389d8acd5654572631c669c2d83ce9b5dd6b78d09cd36ce95eee5275931939f2bdd7c0c84b08a427c30051440e43ca8b5a29245ac8e77c2bf4f6c97

Download Submit
memory/5008-142-0x000001FA21780000-0x000001FA218C9000-memory.dmp

Filesize
1.3MB

Download
memory/5008-143-0x000001FA215A0000-0x000001FA21615000-memory.dmp

Filesize
468KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads