luminosity | c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984

General

Target

c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
Size

428KB
MD5

e2ca6ce0321817cf237c0338e2550965
SHA1

6bd96a67c5f6de32a2efa9254eb9992a8b2743ff
SHA256

c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984
SHA512

1cf46509b9e9a72b3018d6a2ada218bfe195a7fe0d10366abec32913e2d9149cfd2439c38c7cdf55e534bc4a876fd0112e998d0bf38720edec3647428e2c70f0
SSDEEP

12288:EI6xnkHxLr6QBizIyYk7G6G9xI3QV+e5w1wetFREjwTzTIZKuW+WVk/4rjJcHqf8:IyRaQBq42QV+e5w1wetFREjwTzTIsuWU

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:

helper.exe

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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\156227\\helper.exe\""	helper.exe

Executes dropped EXE 2 IoCs

Processes:

helper.exehelper.exe

pid process

1840 helper.exe
3944 helper.exe

pid	process
1840	helper.exe
3944	helper.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

helper.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Computer Helper = "\"C:\\ProgramData\\156227\\helper.exe\""	helper.exe

Drops file in System32 directory 2 IoCs

Processes:

helper.exe

description ioc process

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

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

Processes:

c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exehelper.exe

description	pid	process	target process
PID 4880 set thread context of 1952	4880	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 1840 set thread context of 3944	1840	helper.exe	helper.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 64 IoCs

Processes:

helper.exec6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe

pid	process
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
1952	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
1952	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe
3944	helper.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe

pid process

1952 c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

helper.exe

description pid process

Token: SeDebugPrivilege 3944 helper.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

helper.exe

pid process

3944 helper.exe

pid	process
1952	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe

description	pid	process
Token: SeDebugPrivilege	3944	helper.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exec6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exehelper.exehelper.exe

description	pid	process	target process
PID 4880 wrote to memory of 1952	4880	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 4880 wrote to memory of 1952	4880	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 4880 wrote to memory of 1952	4880	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 4880 wrote to memory of 1952	4880	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 4880 wrote to memory of 1952	4880	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 4880 wrote to memory of 1952	4880	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 4880 wrote to memory of 1952	4880	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 4880 wrote to memory of 1952	4880	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 1952 wrote to memory of 1840	1952	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	helper.exe
PID 1952 wrote to memory of 1840	1952	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	helper.exe
PID 1952 wrote to memory of 1840	1952	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe	helper.exe
PID 1840 wrote to memory of 3944	1840	helper.exe	helper.exe
PID 1840 wrote to memory of 3944	1840	helper.exe	helper.exe
PID 1840 wrote to memory of 3944	1840	helper.exe	helper.exe
PID 1840 wrote to memory of 3944	1840	helper.exe	helper.exe
PID 1840 wrote to memory of 3944	1840	helper.exe	helper.exe
PID 1840 wrote to memory of 3944	1840	helper.exe	helper.exe
PID 1840 wrote to memory of 3944	1840	helper.exe	helper.exe
PID 1840 wrote to memory of 3944	1840	helper.exe	helper.exe
PID 3944 wrote to memory of 1952	3944	helper.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 3944 wrote to memory of 1952	3944	helper.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 3944 wrote to memory of 1952	3944	helper.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 3944 wrote to memory of 1952	3944	helper.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
PID 3944 wrote to memory of 1952	3944	helper.exe	c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe

C:\Users\Admin\AppData\Local\Temp\c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
"C:\Users\Admin\AppData\Local\Temp\c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Users\Admin\AppData\Local\Temp\c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe
  "C:\Users\Admin\AppData\Local\Temp\c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:1952
- - C:\ProgramData\156227\helper.exe
    "C:\ProgramData\156227\helper.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1840
  - - C:\ProgramData\156227\helper.exe
      "C:\ProgramData\156227\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
      Suspicious use of WriteProcessMemory
      PID:3944

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\156227\helper.exe

Filesize
428KB

MD5
e2ca6ce0321817cf237c0338e2550965

SHA1
6bd96a67c5f6de32a2efa9254eb9992a8b2743ff

SHA256
c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984

SHA512
1cf46509b9e9a72b3018d6a2ada218bfe195a7fe0d10366abec32913e2d9149cfd2439c38c7cdf55e534bc4a876fd0112e998d0bf38720edec3647428e2c70f0

Download Submit
C:\ProgramData\156227\helper.exe

Filesize
428KB

MD5
e2ca6ce0321817cf237c0338e2550965

SHA1
6bd96a67c5f6de32a2efa9254eb9992a8b2743ff

SHA256
c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984

SHA512
1cf46509b9e9a72b3018d6a2ada218bfe195a7fe0d10366abec32913e2d9149cfd2439c38c7cdf55e534bc4a876fd0112e998d0bf38720edec3647428e2c70f0

Download Submit
C:\ProgramData\156227\helper.exe

Filesize
428KB

MD5
e2ca6ce0321817cf237c0338e2550965

SHA1
6bd96a67c5f6de32a2efa9254eb9992a8b2743ff

SHA256
c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984

SHA512
1cf46509b9e9a72b3018d6a2ada218bfe195a7fe0d10366abec32913e2d9149cfd2439c38c7cdf55e534bc4a876fd0112e998d0bf38720edec3647428e2c70f0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\c6052e5c6fd6d63c9fe20272c9847b04b41047af69f162fca3719851516de984.exe.log

Filesize
312B

MD5
6dba4702b346903da02f7dd9e839a128

SHA1
d69f255866f30a87c9eca8312d425c47059bf15e

SHA256
29d145faac0201870c39b9119894f78694a776e03fc8f79349bdf92e56a65bcd

SHA512
33afef187e806838717238881aaaf41272f8b484fcfe97a85057fd43a7eeb119df813d6023d2ee770aa22a067f7e9d532dd1c30b512f9c48b76f838615863e1d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\helper.exe.log

Filesize
312B

MD5
6dba4702b346903da02f7dd9e839a128

SHA1
d69f255866f30a87c9eca8312d425c47059bf15e

SHA256
29d145faac0201870c39b9119894f78694a776e03fc8f79349bdf92e56a65bcd

SHA512
33afef187e806838717238881aaaf41272f8b484fcfe97a85057fd43a7eeb119df813d6023d2ee770aa22a067f7e9d532dd1c30b512f9c48b76f838615863e1d

Download Submit
memory/1840-155-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/1840-147-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/1840-145-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/1840-142-0x0000000000000000-mapping.dmp

Download
memory/1952-137-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1952-141-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/1952-159-0x00000000068A0000-0x00000000068B7000-memory.dmp

Filesize
92KB

Download
memory/1952-146-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/1952-157-0x00000000068A0000-0x00000000068B7000-memory.dmp

Filesize
92KB

Download
memory/1952-158-0x00000000068A0000-0x00000000068B7000-memory.dmp

Filesize
92KB

Download
memory/1952-135-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1952-134-0x0000000000000000-mapping.dmp

Download
memory/1952-161-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/3944-156-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/3944-148-0x0000000000000000-mapping.dmp

Download
memory/3944-160-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4880-132-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4880-140-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4880-133-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads