luminosity | 726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2022, 22:42

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General

Target
726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe
Size 273KB
Sample221126-2mvwasag29
SHA256 726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102
MD5 f62ce2757b400d5f76248ffb2025097f
SHA1 8242f18950570f733e945ef5bce76eb361417700
SHA512 496f7a1a8a13c914de2a3939036b2c6606cb481fe919c2d02c1976a9465c0a83a1ba665f99cfcae71a3607da37c650df1f3a29e467cf4e8501823417e1a4c70a
SSDEEP 6144:xMDd/icKmpZHzE3jVGG1e6JC3uhgSsh5LGbUxV/2JEg:x0PZHITg6RC3QFsh5LxxV/2
MD5 SHA1 SHA512 SSDEEP

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\""	sysmon.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\\257317\\sysmon.exe\""	sysmon.exe

Executes dropped EXE 2 IoCs

pid	Process
2392	sysmon.exe
2312	sysmon.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\System Monitor = "\"C:\\ProgramData\\257317\\sysmon.exe\""	sysmon.exe

Drops file in System32 directory 2 IoCs

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

description	pid	Process	procid_target
PID 5036 set thread context of 4452	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	81
PID 2392 set thread context of 2312	2392	sysmon.exe	90

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

pid	Process
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
4452	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe
4452	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2392	sysmon.exe
2392	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe
5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe
2312	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4452	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe
Token: SeDebugPrivilege	2392	sysmon.exe
Token: SeDebugPrivilege	2312	sysmon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2312	sysmon.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 4452	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	81
PID 5036 wrote to memory of 4452	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	81
PID 5036 wrote to memory of 4452	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	81
PID 5036 wrote to memory of 4452	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	81
PID 5036 wrote to memory of 4452	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	81
PID 5036 wrote to memory of 4452	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	81
PID 5036 wrote to memory of 4452	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	81
PID 5036 wrote to memory of 4452	5036	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	81
PID 4452 wrote to memory of 2392	4452	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	82
PID 4452 wrote to memory of 2392	4452	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	82
PID 4452 wrote to memory of 2392	4452	726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe	82
PID 2392 wrote to memory of 2312	2392	sysmon.exe	90
PID 2392 wrote to memory of 2312	2392	sysmon.exe	90
PID 2392 wrote to memory of 2312	2392	sysmon.exe	90
PID 2392 wrote to memory of 2312	2392	sysmon.exe	90
PID 2392 wrote to memory of 2312	2392	sysmon.exe	90
PID 2392 wrote to memory of 2312	2392	sysmon.exe	90
PID 2392 wrote to memory of 2312	2392	sysmon.exe	90
PID 2392 wrote to memory of 2312	2392	sysmon.exe	90
PID 2312 wrote to memory of 4452	2312	sysmon.exe	81
PID 2312 wrote to memory of 4452	2312	sysmon.exe	81
PID 2312 wrote to memory of 4452	2312	sysmon.exe	81
PID 2312 wrote to memory of 4452	2312	sysmon.exe	81
PID 2312 wrote to memory of 4452	2312	sysmon.exe	81
PID 2312 wrote to memory of 2392	2312	sysmon.exe	82
PID 2312 wrote to memory of 2392	2312	sysmon.exe	82
PID 2312 wrote to memory of 2392	2312	sysmon.exe	82
PID 2312 wrote to memory of 2392	2312	sysmon.exe	82
PID 2312 wrote to memory of 2392	2312	sysmon.exe	82
PID 2312 wrote to memory of 5036	2312	sysmon.exe	76
PID 2312 wrote to memory of 5036	2312	sysmon.exe	76
PID 2312 wrote to memory of 5036	2312	sysmon.exe	76
PID 2312 wrote to memory of 5036	2312	sysmon.exe	76
PID 2312 wrote to memory of 5036	2312	sysmon.exe	76

C:\Users\Admin\AppData\Local\Temp\726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe
"C:\Users\Admin\AppData\Local\Temp\726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Users\Admin\AppData\Local\Temp\726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe
  "C:\Users\Admin\AppData\Local\Temp\726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:4452
- - C:\ProgramData\257317\sysmon.exe
    "C:\ProgramData\257317\sysmon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2392
  - - C:\ProgramData\257317\sysmon.exe
      "C:\ProgramData\257317\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
      Suspicious use of WriteProcessMemory
      PID:2312

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

sysmon.exe

Path C:\ProgramData\257317\sysmon.exe
Size 273KB
SHA256 726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102
MD5 f62ce2757b400d5f76248ffb2025097f
SHA1 8242f18950570f733e945ef5bce76eb361417700
SHA512 496f7a1a8a13c914de2a3939036b2c6606cb481fe919c2d02c1976a9465c0a83a1ba665f99cfcae71a3607da37c650df1f3a29e467cf4e8501823417e1a4c70a
SSDEEP 6144:xMDd/icKmpZHzE3jVGG1e6JC3uhgSsh5LGbUxV/2JEg:x0PZHITg6RC3QFsh5LxxV/2
MD5 SHA1 SHA512 SSDEEP

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sysmon.exe

Path C:\ProgramData\257317\sysmon.exe
Size 273KB
SHA256 726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102
MD5 f62ce2757b400d5f76248ffb2025097f
SHA1 8242f18950570f733e945ef5bce76eb361417700
SHA512 496f7a1a8a13c914de2a3939036b2c6606cb481fe919c2d02c1976a9465c0a83a1ba665f99cfcae71a3607da37c650df1f3a29e467cf4e8501823417e1a4c70a
SSDEEP 6144:xMDd/icKmpZHzE3jVGG1e6JC3uhgSsh5LGbUxV/2JEg:x0PZHITg6RC3QFsh5LxxV/2
MD5 SHA1 SHA512 SSDEEP

Submit Download

sysmon.exe

Path C:\ProgramData\257317\sysmon.exe
Size 273KB
SHA256 726a50949fd2cddf84a4671b740703b94bfaf9b9eef2c90913bd7b693537c102
MD5 f62ce2757b400d5f76248ffb2025097f
SHA1 8242f18950570f733e945ef5bce76eb361417700
SHA512 496f7a1a8a13c914de2a3939036b2c6606cb481fe919c2d02c1976a9465c0a83a1ba665f99cfcae71a3607da37c650df1f3a29e467cf4e8501823417e1a4c70a
SSDEEP 6144:xMDd/icKmpZHzE3jVGG1e6JC3uhgSsh5LGbUxV/2JEg:x0PZHITg6RC3QFsh5LxxV/2
MD5 SHA1 SHA512 SSDEEP

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memory/2312-156-0x0000000074750000-0x0000000074D01000-memory.dmp

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memory/2312-146-0x0000000074750000-0x0000000074D01000-memory.dmp

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memory/2392-142-0x0000000074750000-0x0000000074D01000-memory.dmp

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memory/2392-140-0x0000000074750000-0x0000000074D01000-memory.dmp

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memory/2392-152-0x0000000004E20000-0x0000000004E37000-memory.dmp

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memory/4452-148-0x0000000006E10000-0x0000000006E27000-memory.dmp

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memory/4452-136-0x0000000074750000-0x0000000074D01000-memory.dmp

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memory/4452-135-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/4452-147-0x0000000006E10000-0x0000000006E27000-memory.dmp

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memory/4452-149-0x0000000006E10000-0x0000000006E27000-memory.dmp

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memory/4452-141-0x0000000074750000-0x0000000074D01000-memory.dmp

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memory/4452-157-0x0000000074750000-0x0000000074D01000-memory.dmp

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memory/5036-132-0x0000000074750000-0x0000000074D01000-memory.dmp

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memory/5036-153-0x0000000000F60000-0x0000000000F77000-memory.dmp

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memory/5036-154-0x0000000000F60000-0x0000000000F77000-memory.dmp

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memory/5036-155-0x0000000000F60000-0x0000000000F77000-memory.dmp

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memory/5036-133-0x0000000074750000-0x0000000074D01000-memory.dmp

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