luminosity | b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829

General

Target

b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe
Size

365KB
MD5

51bc28907f8d8027e3121c3064ef60f6
SHA1

34eb9c2ae598062071362eb8acb06acafddb936a
SHA256

b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829
SHA512

81a68646a515d96c7c2c1bcf670c54631efbb605d867660086c096b52afa411040947b1f7712e90e93fca58491c7535a78be6c3bc3dd31ee46e551a730343d9c
SSDEEP

6144:WXV+JnRQtCJmM+mKwYpzyAtmLbR9JWJWJlU3hJ272Ja2P4337MqjrEVGPjk7ngIk:eAROuRvEPla2P4brEyjk7ngYsP

Score

10^/10

luminosity persistence rat

Malware Config

Signatures

Luminosity
Luminosity is a RAT family that was on sale, while claiming to be a system administration utility.
rat luminosity

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

LiveChat.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	LiveChat.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\947341\\LiveChat.exe\""	LiveChat.exe

Executes dropped EXE 1 IoCs

Processes:

LiveChat.exe

pid process

2020 LiveChat.exe

pid	process
2020	LiveChat.exe

Loads dropped DLL 2 IoCs

Processes:

b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe

pid	process
1692	b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe
1692	b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

LiveChat.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows98 = "\"C:\\ProgramData\\947341\\LiveChat.exe\""	LiveChat.exe

Drops file in System32 directory 2 IoCs

Processes:

LiveChat.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\clientsvr.exe	LiveChat.exe
File created	C:\Windows\SysWOW64\clientsvr.exe	LiveChat.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

LiveChat.exe

pid process

2020 LiveChat.exe
2020 LiveChat.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe

pid process

1692 b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

LiveChat.exe

description pid process

Token: SeDebugPrivilege 2020 LiveChat.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LiveChat.exe

pid process

2020 LiveChat.exe

pid	process
2020	LiveChat.exe
2020	LiveChat.exe

description	pid	process
Token: SeDebugPrivilege	2020	LiveChat.exe

pid	process
2020	LiveChat.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe

description	pid	process	target process
PID 1692 wrote to memory of 2020	1692	b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe	LiveChat.exe
PID 1692 wrote to memory of 2020	1692	b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe	LiveChat.exe
PID 1692 wrote to memory of 2020	1692	b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe	LiveChat.exe
PID 1692 wrote to memory of 2020	1692	b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe	LiveChat.exe

C:\Users\Admin\AppData\Local\Temp\b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe
"C:\Users\Admin\AppData\Local\Temp\b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1692
- C:\ProgramData\947341\LiveChat.exe
  "C:\ProgramData\947341\LiveChat.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\947341\LiveChat.exe

Filesize
365KB

MD5
51bc28907f8d8027e3121c3064ef60f6

SHA1
34eb9c2ae598062071362eb8acb06acafddb936a

SHA256
b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829

SHA512
81a68646a515d96c7c2c1bcf670c54631efbb605d867660086c096b52afa411040947b1f7712e90e93fca58491c7535a78be6c3bc3dd31ee46e551a730343d9c

Download Submit
C:\ProgramData\947341\LiveChat.exe

Filesize
365KB

MD5
51bc28907f8d8027e3121c3064ef60f6

SHA1
34eb9c2ae598062071362eb8acb06acafddb936a

SHA256
b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829

SHA512
81a68646a515d96c7c2c1bcf670c54631efbb605d867660086c096b52afa411040947b1f7712e90e93fca58491c7535a78be6c3bc3dd31ee46e551a730343d9c

Download Submit
\ProgramData\947341\LiveChat.exe

Filesize
365KB

MD5
51bc28907f8d8027e3121c3064ef60f6

SHA1
34eb9c2ae598062071362eb8acb06acafddb936a

SHA256
b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829

SHA512
81a68646a515d96c7c2c1bcf670c54631efbb605d867660086c096b52afa411040947b1f7712e90e93fca58491c7535a78be6c3bc3dd31ee46e551a730343d9c

Download Submit
\ProgramData\947341\LiveChat.exe

Filesize
365KB

MD5
51bc28907f8d8027e3121c3064ef60f6

SHA1
34eb9c2ae598062071362eb8acb06acafddb936a

SHA256
b74aa3ea836a85ea0e646352f2216b8a834be47b002e04ba88259219a9c13829

SHA512
81a68646a515d96c7c2c1bcf670c54631efbb605d867660086c096b52afa411040947b1f7712e90e93fca58491c7535a78be6c3bc3dd31ee46e551a730343d9c

Download Submit
memory/1692-54-0x0000000075661000-0x0000000075663000-memory.dmp

Filesize
8KB

Download
memory/1692-55-0x0000000074420000-0x00000000749CB000-memory.dmp

Filesize
5.7MB

Download
memory/1692-63-0x0000000074420000-0x00000000749CB000-memory.dmp

Filesize
5.7MB

Download
memory/1692-65-0x0000000074420000-0x00000000749CB000-memory.dmp

Filesize
5.7MB

Download
memory/2020-58-0x0000000000000000-mapping.dmp

Download
memory/2020-62-0x0000000074420000-0x00000000749CB000-memory.dmp

Filesize
5.7MB

Download
memory/2020-64-0x0000000074420000-0x00000000749CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads