luminosity | 8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c

General

Target

8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe
Size

168KB
MD5

aa7814ec18864f0b90a1100a624cb1fd
SHA1

81f5af5bb7b98d4f4901330aadce275cf8529453
SHA256

8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c
SHA512

7e91a074fe75c9629148a77897afac05433d0e5d99d30683e0c60f58a840002b1c309c5623ab0d862f7b52bdb8be41cd2e0b3ebc14235cad2a65985214a6f288
SSDEEP

3072:bk5zdU9Qy3RDAMx4k3HeSUNz2Pbjc7bN5nzI9CUTjcqyCKGBp2gGrND0GU:w5zd8RDr6zSAqPbjMbnzpWIqvKGtg

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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\862021\\explorer.exe\""	explorer.exe

Executes dropped EXE 2 IoCs

pid	Process
1948	explorer.exe
808	explorer.exe

Loads dropped DLL 2 IoCs

pid	Process
740	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe
740	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\explorer = "\"C:\\ProgramData\\862021\\explorer.exe\""	explorer.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\clientsvr.exe	explorer.exe
File opened for modification	C:\Windows\SysWOW64\clientsvr.exe	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2020 set thread context of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 1948 set thread context of 808	1948	explorer.exe	29

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

pid	Process
2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe
1948	explorer.exe
808	explorer.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
740	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe
Token: SeDebugPrivilege	1948	explorer.exe
Token: SeDebugPrivilege	808	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
808	explorer.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 2020 wrote to memory of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 2020 wrote to memory of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 2020 wrote to memory of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 2020 wrote to memory of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 2020 wrote to memory of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 2020 wrote to memory of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 2020 wrote to memory of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 2020 wrote to memory of 740	2020	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	26
PID 740 wrote to memory of 1948	740	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	28
PID 740 wrote to memory of 1948	740	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	28
PID 740 wrote to memory of 1948	740	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	28
PID 740 wrote to memory of 1948	740	8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe	28
PID 1948 wrote to memory of 808	1948	explorer.exe	29
PID 1948 wrote to memory of 808	1948	explorer.exe	29
PID 1948 wrote to memory of 808	1948	explorer.exe	29
PID 1948 wrote to memory of 808	1948	explorer.exe	29
PID 1948 wrote to memory of 808	1948	explorer.exe	29
PID 1948 wrote to memory of 808	1948	explorer.exe	29
PID 1948 wrote to memory of 808	1948	explorer.exe	29
PID 1948 wrote to memory of 808	1948	explorer.exe	29
PID 1948 wrote to memory of 808	1948	explorer.exe	29

C:\Users\Admin\AppData\Local\Temp\8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe
"C:\Users\Admin\AppData\Local\Temp\8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Users\Admin\AppData\Local\Temp\8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe
  "C:\Users\Admin\AppData\Local\Temp\8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:740
- - C:\ProgramData\862021\explorer.exe
    "C:\ProgramData\862021\explorer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1948
  - - C:\ProgramData\862021\explorer.exe
      "C:\ProgramData\862021\explorer.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:808

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

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Downloads

C:\ProgramData\862021\explorer.exe

Filesize
168KB

MD5
aa7814ec18864f0b90a1100a624cb1fd

SHA1
81f5af5bb7b98d4f4901330aadce275cf8529453

SHA256
8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c

SHA512
7e91a074fe75c9629148a77897afac05433d0e5d99d30683e0c60f58a840002b1c309c5623ab0d862f7b52bdb8be41cd2e0b3ebc14235cad2a65985214a6f288

Download Submit
C:\ProgramData\862021\explorer.exe

Filesize
168KB

MD5
aa7814ec18864f0b90a1100a624cb1fd

SHA1
81f5af5bb7b98d4f4901330aadce275cf8529453

SHA256
8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c

SHA512
7e91a074fe75c9629148a77897afac05433d0e5d99d30683e0c60f58a840002b1c309c5623ab0d862f7b52bdb8be41cd2e0b3ebc14235cad2a65985214a6f288

Download Submit
C:\ProgramData\862021\explorer.exe

Filesize
168KB

MD5
aa7814ec18864f0b90a1100a624cb1fd

SHA1
81f5af5bb7b98d4f4901330aadce275cf8529453

SHA256
8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c

SHA512
7e91a074fe75c9629148a77897afac05433d0e5d99d30683e0c60f58a840002b1c309c5623ab0d862f7b52bdb8be41cd2e0b3ebc14235cad2a65985214a6f288

Download Submit
\ProgramData\862021\explorer.exe

Filesize
168KB

MD5
aa7814ec18864f0b90a1100a624cb1fd

SHA1
81f5af5bb7b98d4f4901330aadce275cf8529453

SHA256
8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c

SHA512
7e91a074fe75c9629148a77897afac05433d0e5d99d30683e0c60f58a840002b1c309c5623ab0d862f7b52bdb8be41cd2e0b3ebc14235cad2a65985214a6f288

Download Submit
\ProgramData\862021\explorer.exe

Filesize
168KB

MD5
aa7814ec18864f0b90a1100a624cb1fd

SHA1
81f5af5bb7b98d4f4901330aadce275cf8529453

SHA256
8f9828956b3a0894dfe5fdd3f0e9ca5919f30f6a9eedb8c52b818808c757f72c

SHA512
7e91a074fe75c9629148a77897afac05433d0e5d99d30683e0c60f58a840002b1c309c5623ab0d862f7b52bdb8be41cd2e0b3ebc14235cad2a65985214a6f288

Download Submit
memory/740-71-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/740-60-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/740-65-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/740-67-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/740-69-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/740-95-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/740-62-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/740-58-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/740-57-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/808-92-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/808-96-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/1948-78-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/1948-93-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/1948-94-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2020-56-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2020-55-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2020-54-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/2020-70-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads