luminosity | 4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

General

Target

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
Size

497KB
MD5

efd43d025e05c0a177536119027a082d
SHA1

297bc92df3fce44a73390d8a764a7e19443b63d3
SHA256

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6
SHA512

7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0
SSDEEP

12288:3aKYrm8CYJAjJMS1T3iLlHu3eJ2NfxIy+ew:qt65YGdxJix+ecNfxD+ew

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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\497273\\sysmon.exe\""	sysmon.exe

Executes dropped EXE 2 IoCs

Processes:

sysmon.exesysmon.exe

pid process

324 sysmon.exe
1092 sysmon.exe
Loads dropped DLL 1 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

pid process

1488 4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

pid	process
324	sysmon.exe
1092	sysmon.exe

pid	process
1488	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exesysmon.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\N1qoHk5CpdbsDmBp = "C:\\Users\\Admin\\AppData\\Roaming\\780bN00j69Ufvb01\\2GZxrfQYKhWl.exe"	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\N1qoHk5CpdbsDmBpps = "C:\\Users\\Admin\\AppData\\Roaming\\780bN00j69Ufvb01\\vOWl5dCwKScA.exe"	sysmon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\System Monitor = "\"C:\\ProgramData\\497273\\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

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exe

description	pid	process	target process
PID 1592 set thread context of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 324 set thread context of 1092	324	sysmon.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
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exesysmon.exe

pid process

1592 4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
324 sysmon.exe
324 sysmon.exe
1092 sysmon.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

pid process

1488 4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

pid	process
1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
324	sysmon.exe
324	sysmon.exe
1092	sysmon.exe

pid	process
1488	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exesysmon.exe

description	pid	process
Token: SeDebugPrivilege	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
Token: SeDebugPrivilege	324	sysmon.exe
Token: SeDebugPrivilege	1092	sysmon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

sysmon.exe

pid process

1092 sysmon.exe

pid	process
1092	sysmon.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exe

description	pid	process	target process
PID 1592 wrote to memory of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 1592 wrote to memory of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 1592 wrote to memory of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 1592 wrote to memory of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 1592 wrote to memory of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 1592 wrote to memory of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 1592 wrote to memory of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 1592 wrote to memory of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 1592 wrote to memory of 1488	1592	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 1488 wrote to memory of 324	1488	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	sysmon.exe
PID 1488 wrote to memory of 324	1488	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	sysmon.exe
PID 1488 wrote to memory of 324	1488	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	sysmon.exe
PID 1488 wrote to memory of 324	1488	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	sysmon.exe
PID 324 wrote to memory of 1092	324	sysmon.exe	sysmon.exe
PID 324 wrote to memory of 1092	324	sysmon.exe	sysmon.exe
PID 324 wrote to memory of 1092	324	sysmon.exe	sysmon.exe
PID 324 wrote to memory of 1092	324	sysmon.exe	sysmon.exe
PID 324 wrote to memory of 1092	324	sysmon.exe	sysmon.exe
PID 324 wrote to memory of 1092	324	sysmon.exe	sysmon.exe
PID 324 wrote to memory of 1092	324	sysmon.exe	sysmon.exe
PID 324 wrote to memory of 1092	324	sysmon.exe	sysmon.exe
PID 324 wrote to memory of 1092	324	sysmon.exe	sysmon.exe

C:\Users\Admin\AppData\Local\Temp\4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
"C:\Users\Admin\AppData\Local\Temp\4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1592
- C:\Users\Admin\AppData\Local\Temp\4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
  "C:\Users\Admin\AppData\Local\Temp\4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:1488
- - C:\ProgramData\497273\sysmon.exe
    "C:\ProgramData\497273\sysmon.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:324
  - - C:\ProgramData\497273\sysmon.exe
      "C:\ProgramData\497273\sysmon.exe"
      4⤵
      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:1092

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\497273\sysmon.exe

Filesize
497KB

MD5
efd43d025e05c0a177536119027a082d

SHA1
297bc92df3fce44a73390d8a764a7e19443b63d3

SHA256
4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

SHA512
7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0

Download Submit
C:\ProgramData\497273\sysmon.exe

Filesize
497KB

MD5
efd43d025e05c0a177536119027a082d

SHA1
297bc92df3fce44a73390d8a764a7e19443b63d3

SHA256
4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

SHA512
7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0

Download Submit
C:\ProgramData\497273\sysmon.exe

Filesize
497KB

MD5
efd43d025e05c0a177536119027a082d

SHA1
297bc92df3fce44a73390d8a764a7e19443b63d3

SHA256
4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

SHA512
7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0

Download Submit
\ProgramData\497273\sysmon.exe

Filesize
497KB

MD5
efd43d025e05c0a177536119027a082d

SHA1
297bc92df3fce44a73390d8a764a7e19443b63d3

SHA256
4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

SHA512
7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0

Download Submit
memory/324-90-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/324-75-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/324-71-0x0000000000000000-mapping.dmp

Download
memory/1092-93-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1092-91-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1092-83-0x000000000045CF0E-mapping.dmp

Download
memory/1488-62-0x000000000045CF0E-mapping.dmp

Download
memory/1488-69-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1488-67-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1488-65-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1488-61-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1488-76-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1488-59-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1488-57-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1488-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1488-92-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1592-64-0x00000000745A0000-0x0000000074B4B000-memory.dmp

Filesize
5.7MB

Download
memory/1592-54-0x0000000075521000-0x0000000075523000-memory.dmp

Filesize
8KB

Download
memory/1592-55-0x00000000745A0000-0x0000000074B4B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads