luminosity | 1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855

General

Target

1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe
Size

1.5MB
MD5

5c1e97970f754e08bc9e75494c8b3ab8
SHA1

486db3a90c2f5fe73057f341127d17dea3449a02
SHA256

1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855
SHA512

1642094d09b998a21e4ca0908edd5807550fda56236ccc02642aec3f5449f66d14fc27ca93e86d9b4c3b169f1ddefc59dcf0413ee7facabe2e9698020a56ced5
SSDEEP

12288:gv01G/osLRUggkgP3cVDmLSGU/vZe7jMHO1vMi/iXyvH:Y/N+gIMJmLSGU/vZe7jMHO1vL/iXyv

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\""	helper.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\847942\\helper.exe\""	helper.exe

Executes dropped EXE 2 IoCs

pid	Process
1712	helper.exe
1740	helper.exe

Loads dropped DLL 1 IoCs

pid	Process
1744	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Computer Helper = "\"C:\\ProgramData\\847942\\helper.exe\""	helper.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1264 set thread context of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1712 set thread context of 1740	1712	helper.exe	31

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

pid	Process
1740	helper.exe
1740	helper.exe
1740	helper.exe
1740	helper.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1744	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1740	helper.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1740	helper.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1264 wrote to memory of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1264 wrote to memory of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1264 wrote to memory of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1264 wrote to memory of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1264 wrote to memory of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1264 wrote to memory of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1264 wrote to memory of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1264 wrote to memory of 1744	1264	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	28
PID 1744 wrote to memory of 1712	1744	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	30
PID 1744 wrote to memory of 1712	1744	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	30
PID 1744 wrote to memory of 1712	1744	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	30
PID 1744 wrote to memory of 1712	1744	1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe	30
PID 1712 wrote to memory of 1740	1712	helper.exe	31
PID 1712 wrote to memory of 1740	1712	helper.exe	31
PID 1712 wrote to memory of 1740	1712	helper.exe	31
PID 1712 wrote to memory of 1740	1712	helper.exe	31
PID 1712 wrote to memory of 1740	1712	helper.exe	31
PID 1712 wrote to memory of 1740	1712	helper.exe	31
PID 1712 wrote to memory of 1740	1712	helper.exe	31
PID 1712 wrote to memory of 1740	1712	helper.exe	31
PID 1712 wrote to memory of 1740	1712	helper.exe	31

C:\Users\Admin\AppData\Local\Temp\1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe
"C:\Users\Admin\AppData\Local\Temp\1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Users\Admin\AppData\Local\Temp\1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe
  "C:\Users\Admin\AppData\Local\Temp\1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:1744
- - C:\ProgramData\847942\helper.exe
    "C:\ProgramData\847942\helper.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1712
  - - C:\ProgramData\847942\helper.exe
      "C:\ProgramData\847942\helper.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:1740

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\847942\helper.exe

Filesize
1.5MB

MD5
5c1e97970f754e08bc9e75494c8b3ab8

SHA1
486db3a90c2f5fe73057f341127d17dea3449a02

SHA256
1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855

SHA512
1642094d09b998a21e4ca0908edd5807550fda56236ccc02642aec3f5449f66d14fc27ca93e86d9b4c3b169f1ddefc59dcf0413ee7facabe2e9698020a56ced5

Download Submit
C:\ProgramData\847942\helper.exe

Filesize
1.5MB

MD5
5c1e97970f754e08bc9e75494c8b3ab8

SHA1
486db3a90c2f5fe73057f341127d17dea3449a02

SHA256
1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855

SHA512
1642094d09b998a21e4ca0908edd5807550fda56236ccc02642aec3f5449f66d14fc27ca93e86d9b4c3b169f1ddefc59dcf0413ee7facabe2e9698020a56ced5

Download Submit
C:\ProgramData\847942\helper.exe

Filesize
1.5MB

MD5
5c1e97970f754e08bc9e75494c8b3ab8

SHA1
486db3a90c2f5fe73057f341127d17dea3449a02

SHA256
1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855

SHA512
1642094d09b998a21e4ca0908edd5807550fda56236ccc02642aec3f5449f66d14fc27ca93e86d9b4c3b169f1ddefc59dcf0413ee7facabe2e9698020a56ced5

Download Submit
\ProgramData\847942\helper.exe

Filesize
1.5MB

MD5
5c1e97970f754e08bc9e75494c8b3ab8

SHA1
486db3a90c2f5fe73057f341127d17dea3449a02

SHA256
1779898c6b7dc7ec74e4b6274761f1187080d28fb8261d14b4d3aa8663766855

SHA512
1642094d09b998a21e4ca0908edd5807550fda56236ccc02642aec3f5449f66d14fc27ca93e86d9b4c3b169f1ddefc59dcf0413ee7facabe2e9698020a56ced5

Download Submit
memory/1264-55-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1264-54-0x0000000075A31000-0x0000000075A33000-memory.dmp

Filesize
8KB

Download
memory/1264-71-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1712-90-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1712-95-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1740-96-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1740-98-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1744-63-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1744-72-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1744-69-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1744-67-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1744-59-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1744-57-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1744-97-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1744-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1744-99-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads