luminosity | ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb

Analysis

max time kernel
170s
max time network
102s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
20-10-2022 20:55

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General

Target

ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
Size

1.3MB
MD5

80af64b3c090e36be9a8844c51d1c460
SHA1

0c6fbc16668df5773f4d8ea8ae5cd84538d561d5
SHA256

ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb
SHA512

f3bc54bbbf7b843e3eacce5520d643c8584415f01bc5bdcd02a3b5aaf977e70e3755673feabbd1a8d68c1e396ba0e9e22d9957657f9cd3065e7102f9cca27bea
SSDEEP

24576:ftb20pkaCqT5TBWgNQ7aPA5Hp3njAceNBjsytM1+VAfQpx6A:cVg5tQ7aPCHp3E5YgqK5

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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\246981\\helper.exe\""	helper.exe

Executes dropped EXE 3 IoCs

pid	Process
536	helper.exe
676	helper.exe
1812	helper.exe

Loads dropped DLL 1 IoCs

pid	Process
1232	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Computer Helper = "\"C:\\ProgramData\\246981\\helper.exe\""	helper.exe

AutoIT Executable 4 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0007000000013300-76.dat	autoit_exe
behavioral1/files/0x0007000000013300-78.dat	autoit_exe
behavioral1/files/0x0007000000013300-80.dat	autoit_exe
behavioral1/files/0x0007000000013300-82.dat	autoit_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 2020 set thread context of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 536 set thread context of 1812	536	helper.exe	37

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
2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
536	helper.exe
1812	helper.exe
1812	helper.exe

Suspicious behavior: RenamesItself 3 IoCs

pid	Process
2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
1232	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1812	helper.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1812	helper.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 1972	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	28
PID 2020 wrote to memory of 1972	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	28
PID 2020 wrote to memory of 1972	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	28
PID 2020 wrote to memory of 1972	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	28
PID 2020 wrote to memory of 1004	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	29
PID 2020 wrote to memory of 1004	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	29
PID 2020 wrote to memory of 1004	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	29
PID 2020 wrote to memory of 1004	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	29
PID 2020 wrote to memory of 612	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	30
PID 2020 wrote to memory of 612	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	30
PID 2020 wrote to memory of 612	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	30
PID 2020 wrote to memory of 612	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	30
PID 2020 wrote to memory of 1460	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	31
PID 2020 wrote to memory of 1460	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	31
PID 2020 wrote to memory of 1460	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	31
PID 2020 wrote to memory of 1460	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	31
PID 2020 wrote to memory of 1208	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	32
PID 2020 wrote to memory of 1208	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	32
PID 2020 wrote to memory of 1208	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	32
PID 2020 wrote to memory of 1208	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	32
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 2020 wrote to memory of 1232	2020	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	33
PID 1232 wrote to memory of 536	1232	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	35
PID 1232 wrote to memory of 536	1232	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	35
PID 1232 wrote to memory of 536	1232	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	35
PID 1232 wrote to memory of 536	1232	ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe	35
PID 536 wrote to memory of 676	536	helper.exe	36
PID 536 wrote to memory of 676	536	helper.exe	36
PID 536 wrote to memory of 676	536	helper.exe	36
PID 536 wrote to memory of 676	536	helper.exe	36
PID 536 wrote to memory of 1812	536	helper.exe	37
PID 536 wrote to memory of 1812	536	helper.exe	37
PID 536 wrote to memory of 1812	536	helper.exe	37
PID 536 wrote to memory of 1812	536	helper.exe	37
PID 536 wrote to memory of 1812	536	helper.exe	37
PID 536 wrote to memory of 1812	536	helper.exe	37
PID 536 wrote to memory of 1812	536	helper.exe	37
PID 536 wrote to memory of 1812	536	helper.exe	37
PID 536 wrote to memory of 1812	536	helper.exe	37
PID 536 wrote to memory of 1812	536	helper.exe	37

C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
"C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  2⤵
  PID:1972
- C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  2⤵
  PID:1004
- C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  2⤵
  PID:612
- C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  2⤵
  PID:1460
- C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  2⤵
  PID:1208
- C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:1232
- - C:\ProgramData\246981\helper.exe
    "C:\ProgramData\246981\helper.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:536
  - - C:\ProgramData\246981\helper.exe
      C:\ProgramData\246981\helper.exe
      4⤵
      Executes dropped EXE
      PID:676
  - - C:\ProgramData\246981\helper.exe
      C:\ProgramData\246981\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:1812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\246981\helper.exe

Filesize
1.3MB

MD5
80af64b3c090e36be9a8844c51d1c460

SHA1
0c6fbc16668df5773f4d8ea8ae5cd84538d561d5

SHA256
ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb

SHA512
f3bc54bbbf7b843e3eacce5520d643c8584415f01bc5bdcd02a3b5aaf977e70e3755673feabbd1a8d68c1e396ba0e9e22d9957657f9cd3065e7102f9cca27bea

Download Submit
C:\ProgramData\246981\helper.exe

Filesize
1.3MB

MD5
80af64b3c090e36be9a8844c51d1c460

SHA1
0c6fbc16668df5773f4d8ea8ae5cd84538d561d5

SHA256
ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb

SHA512
f3bc54bbbf7b843e3eacce5520d643c8584415f01bc5bdcd02a3b5aaf977e70e3755673feabbd1a8d68c1e396ba0e9e22d9957657f9cd3065e7102f9cca27bea

Download Submit
C:\ProgramData\246981\helper.exe

Filesize
1.3MB

MD5
80af64b3c090e36be9a8844c51d1c460

SHA1
0c6fbc16668df5773f4d8ea8ae5cd84538d561d5

SHA256
ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb

SHA512
f3bc54bbbf7b843e3eacce5520d643c8584415f01bc5bdcd02a3b5aaf977e70e3755673feabbd1a8d68c1e396ba0e9e22d9957657f9cd3065e7102f9cca27bea

Download Submit
C:\ProgramData\246981\helper.exe

Filesize
104KB

MD5
42ccd69a3be9618d329de0ea0fde3a81

SHA1
47e9897f303496eb9cd5883f9cdb283b6eee65d3

SHA256
14137fcc8697e967b251fd0fafbdf79af8db4c1a67f2eafe53756e3ad80a9bef

SHA512
33d95b20ce606441c89dbc575c8e884196a19db056ffd9d54a5e0c57f3928b0d064b6270e4abf033046606e0456156faba3f3a8e6a353e924a7461e61e46bfae

Download Submit
C:\Users\Admin\AppData\Local\Temp\ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb.exe

Filesize
104KB

MD5
42ccd69a3be9618d329de0ea0fde3a81

SHA1
47e9897f303496eb9cd5883f9cdb283b6eee65d3

SHA256
14137fcc8697e967b251fd0fafbdf79af8db4c1a67f2eafe53756e3ad80a9bef

SHA512
33d95b20ce606441c89dbc575c8e884196a19db056ffd9d54a5e0c57f3928b0d064b6270e4abf033046606e0456156faba3f3a8e6a353e924a7461e61e46bfae

Download Submit
\ProgramData\246981\helper.exe

Filesize
1.3MB

MD5
80af64b3c090e36be9a8844c51d1c460

SHA1
0c6fbc16668df5773f4d8ea8ae5cd84538d561d5

SHA256
ca3e806d6d5d39b9d7eb79faaae309c5a2c129719c161fa0e0a99fd6e04a26eb

SHA512
f3bc54bbbf7b843e3eacce5520d643c8584415f01bc5bdcd02a3b5aaf977e70e3755673feabbd1a8d68c1e396ba0e9e22d9957657f9cd3065e7102f9cca27bea

Download Submit
memory/1232-66-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1232-95-0x0000000074C50000-0x00000000751FB000-memory.dmp

Filesize
5.7MB

Download
memory/1232-70-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1232-104-0x0000000074C50000-0x00000000751FB000-memory.dmp

Filesize
5.7MB

Download
memory/1232-68-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1232-75-0x0000000074C50000-0x00000000751FB000-memory.dmp

Filesize
5.7MB

Download
memory/1232-56-0x0000000000790000-0x000000000088A000-memory.dmp

Filesize
1000KB

Download
memory/1232-62-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1232-60-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1232-58-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1812-101-0x0000000074C50000-0x00000000751FB000-memory.dmp

Filesize
5.7MB

Download
memory/1812-102-0x0000000002725000-0x0000000002736000-memory.dmp

Filesize
68KB

Download
memory/1812-103-0x0000000074C50000-0x00000000751FB000-memory.dmp

Filesize
5.7MB

Download
memory/1812-105-0x0000000002725000-0x0000000002736000-memory.dmp

Filesize
68KB

Download
memory/2020-54-0x0000000076181000-0x0000000076183000-memory.dmp

Filesize
8KB

Download
memory/2020-74-0x0000000000110000-0x0000000000114000-memory.dmp

Filesize
16KB

Download
memory/2020-55-0x0000000002A10000-0x0000000002B70000-memory.dmp

Filesize
1.4MB

Download
memory/2020-73-0x0000000002A10000-0x0000000002B70000-memory.dmp

Filesize
1.4MB

Download