luminosity | 137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2

General

Target

137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe
Size

222KB
MD5

0c4a1cf69322ae92ec30940d0bd71310
SHA1

79f429078d912e42fbd0cd98e62ffdcee5618a28
SHA256

137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2
SHA512

500ee0d98a2136870dc3d9c527d57233ced08e7a39f3b969dbba12ee7cc0c2dc6cebde0c9b4404032660e8a5dde48dccb18facdb8d942d7be753b123c18f2328
SSDEEP

3072:8U4f+fkjZt7fF0L2vMCDiu0Y8RxwLRMcR9aBeWvfxLWDwceWJ2NJucbPvJ1nlYZC:81i+f3uBmLbR9JWJW5JYJuEvPr

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:

client.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\569263\\client.exe\""	client.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	client.exe

Executes dropped EXE 1 IoCs

Processes:

client.exe

pid process

1700 client.exe

pid	process
1700	client.exe

Loads dropped DLL 2 IoCs

Processes:

137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe

pid	process
1468	137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe
1468	137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

client.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Luminosity Client = "\"C:\\ProgramData\\569263\\client.exe\""	client.exe

Drops file in System32 directory 2 IoCs

Processes:

client.exe

description ioc process

File created C:\Windows\SysWOW64\clientsvr.exe client.exe
File opened for modification C:\Windows\SysWOW64\clientsvr.exe client.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 3 IoCs

Processes:

client.exe

pid process

1700 client.exe
1700 client.exe
1700 client.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe

pid process

1468 137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

client.exe

description pid process

Token: SeDebugPrivilege 1700 client.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

client.exe

pid process

1700 client.exe

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

pid	process
1700	client.exe
1700	client.exe
1700	client.exe

description	pid	process
Token: SeDebugPrivilege	1700	client.exe

pid	process
1700	client.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe

description	pid	process	target process
PID 1468 wrote to memory of 1700	1468	137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe	client.exe
PID 1468 wrote to memory of 1700	1468	137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe	client.exe
PID 1468 wrote to memory of 1700	1468	137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe	client.exe
PID 1468 wrote to memory of 1700	1468	137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe	client.exe

C:\Users\Admin\AppData\Local\Temp\137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe
"C:\Users\Admin\AppData\Local\Temp\137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1468
- C:\ProgramData\569263\client.exe
  "C:\ProgramData\569263\client.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:1700

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\569263\client.exe

Filesize
222KB

MD5
0c4a1cf69322ae92ec30940d0bd71310

SHA1
79f429078d912e42fbd0cd98e62ffdcee5618a28

SHA256
137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2

SHA512
500ee0d98a2136870dc3d9c527d57233ced08e7a39f3b969dbba12ee7cc0c2dc6cebde0c9b4404032660e8a5dde48dccb18facdb8d942d7be753b123c18f2328

Download Submit
C:\ProgramData\569263\client.exe

Filesize
222KB

MD5
0c4a1cf69322ae92ec30940d0bd71310

SHA1
79f429078d912e42fbd0cd98e62ffdcee5618a28

SHA256
137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2

SHA512
500ee0d98a2136870dc3d9c527d57233ced08e7a39f3b969dbba12ee7cc0c2dc6cebde0c9b4404032660e8a5dde48dccb18facdb8d942d7be753b123c18f2328

Download Submit
\ProgramData\569263\client.exe

Filesize
222KB

MD5
0c4a1cf69322ae92ec30940d0bd71310

SHA1
79f429078d912e42fbd0cd98e62ffdcee5618a28

SHA256
137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2

SHA512
500ee0d98a2136870dc3d9c527d57233ced08e7a39f3b969dbba12ee7cc0c2dc6cebde0c9b4404032660e8a5dde48dccb18facdb8d942d7be753b123c18f2328

Download Submit
\ProgramData\569263\client.exe

Filesize
222KB

MD5
0c4a1cf69322ae92ec30940d0bd71310

SHA1
79f429078d912e42fbd0cd98e62ffdcee5618a28

SHA256
137028805716af9899e2052184800cf04663821b636c99dc7e2f5b597133ddf2

SHA512
500ee0d98a2136870dc3d9c527d57233ced08e7a39f3b969dbba12ee7cc0c2dc6cebde0c9b4404032660e8a5dde48dccb18facdb8d942d7be753b123c18f2328

Download Submit
memory/1468-54-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

Filesize
8KB

Download
memory/1468-55-0x0000000074F30000-0x00000000754DB000-memory.dmp

Filesize
5.7MB

Download
memory/1468-63-0x0000000074F30000-0x00000000754DB000-memory.dmp

Filesize
5.7MB

Download
memory/1468-65-0x0000000074F30000-0x00000000754DB000-memory.dmp

Filesize
5.7MB

Download
memory/1700-58-0x0000000000000000-mapping.dmp

Download
memory/1700-62-0x0000000074F30000-0x00000000754DB000-memory.dmp

Filesize
5.7MB

Download
memory/1700-64-0x0000000074F30000-0x00000000754DB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads