luminosity | 76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7

General

Target

76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
Size

248KB
MD5

79ba3a3666976d7b8c14ec98c7a2bed0
SHA1

b7607e097c70dcb5e96df839b1eeb8c3c240133f
SHA256

76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7
SHA512

e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec
SSDEEP

3072:KU4f+fkjZt7fF0L2vMCDiu0Y8RxwLRMcR9aBeWvfxLWDwjeWJ2NJucbPvJ1nlYZC:K1i+f3uBmLbR9JWJWqJYJuEvPr

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:

sysmon.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	sysmon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\446814\\sysmon.exe\""	sysmon.exe

Executes dropped EXE 1 IoCs

Processes:

sysmon.exe

pid process

1348 sysmon.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

Processes:

76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

sysmon.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\System Monitor = "\"C:\\ProgramData\\446814\\sysmon.exe\""	sysmon.exe

Drops file in System32 directory 2 IoCs

Processes:

sysmon.exe

description ioc process

File created C:\Windows\SysWOW64\clientsvr.exe sysmon.exe
File opened for modification C:\Windows\SysWOW64\clientsvr.exe sysmon.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

sysmon.exe76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe

pid	process
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
4580	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
4580	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe
1348	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe

pid process

4580 76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

sysmon.exe

description pid process

Token: SeDebugPrivilege 1348 sysmon.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

sysmon.exe

pid process

1348 sysmon.exe

pid	process
4580	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe

description	pid	process
Token: SeDebugPrivilege	1348	sysmon.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exesysmon.exe

description	pid	process	target process
PID 4580 wrote to memory of 1348	4580	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe	sysmon.exe
PID 4580 wrote to memory of 1348	4580	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe	sysmon.exe
PID 4580 wrote to memory of 1348	4580	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe	sysmon.exe
PID 1348 wrote to memory of 4580	1348	sysmon.exe	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
PID 1348 wrote to memory of 4580	1348	sysmon.exe	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
PID 1348 wrote to memory of 4580	1348	sysmon.exe	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
PID 1348 wrote to memory of 4580	1348	sysmon.exe	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
PID 1348 wrote to memory of 4580	1348	sysmon.exe	76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe

C:\Users\Admin\AppData\Local\Temp\76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
"C:\Users\Admin\AppData\Local\Temp\76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4580
- C:\ProgramData\446814\sysmon.exe
  "C:\ProgramData\446814\sysmon.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
  - Suspicious use of WriteProcessMemory
  PID:1348

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\446814\sysmon.exe

Filesize
248KB

MD5
79ba3a3666976d7b8c14ec98c7a2bed0

SHA1
b7607e097c70dcb5e96df839b1eeb8c3c240133f

SHA256
76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7

SHA512
e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec

Download Submit
C:\ProgramData\446814\sysmon.exe

Filesize
248KB

MD5
79ba3a3666976d7b8c14ec98c7a2bed0

SHA1
b7607e097c70dcb5e96df839b1eeb8c3c240133f

SHA256
76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7

SHA512
e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec

Download Submit
memory/1348-134-0x0000000000000000-mapping.dmp

Download
memory/1348-138-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/1348-141-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/4580-132-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/4580-133-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/4580-137-0x0000000006ED0000-0x0000000006EE7000-memory.dmp

Filesize
92KB

Download
memory/4580-140-0x0000000006ED0000-0x0000000006EE7000-memory.dmp

Filesize
92KB

Download
memory/4580-139-0x0000000006ED0000-0x0000000006EE7000-memory.dmp

Filesize
92KB

Download
memory/4580-142-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads