luminosity | 5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383

Analysis

max time kernel
150s
max time network
155s
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 20:36

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General

Target

5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe
Size

363KB
MD5

407ad0b8ca4c0d6fdf45497b6e5e91b3
SHA1

b904a4b9b05ff476c14b1c3dd1de55c7cbab0654
SHA256

5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383
SHA512

32c2f382b19298cf4e6978c44a09a33bb9ee0912d89ebf0138139f1618f3e8640474c78a97f3815dea4f740c177ef809efbf2a6d45e9588958d3fa7a654c9b98
SSDEEP

6144:w8i2UsvYzQGvK28szYvU4n2kJBbnCtfhCyZx+LFus/pT7ivqqqXASDLNVJ6i:G2UsJwKqc4krDCtZxGFusxwqqMLXAi

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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\901897\\helper.exe\""	helper.exe

Executes dropped EXE 2 IoCs

pid	Process
4488	helper.exe
616	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe

Adds Run key to start application 2 TTPs 3 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\Run\PS3ai2RI4Cc31t0n2W = "C:\\Users\\Admin\\AppData\\Roaming\\VcBMrGX0F13ago17\\2W3E7dwFwFBM.exe"	helper.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Computer Helper = "\"C:\\ProgramData\\901897\\helper.exe\""	helper.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PS3ai2RI4Cc31t0n = "C:\\Users\\Admin\\AppData\\Roaming\\VcBMrGX0F13ago17\\7rSVs7cc7dHx.exe"	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.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 2824 set thread context of 1864	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	82
PID 4488 set thread context of 616	4488	helper.exe	84

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
2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe
2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe
4488	helper.exe
4488	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
1864	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe
1864	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe
616	helper.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1864	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe
Token: SeDebugPrivilege	4488	helper.exe
Token: SeDebugPrivilege	616	helper.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
616	helper.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 1864	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	82
PID 2824 wrote to memory of 1864	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	82
PID 2824 wrote to memory of 1864	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	82
PID 2824 wrote to memory of 1864	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	82
PID 2824 wrote to memory of 1864	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	82
PID 2824 wrote to memory of 1864	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	82
PID 2824 wrote to memory of 1864	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	82
PID 2824 wrote to memory of 1864	2824	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	82
PID 1864 wrote to memory of 4488	1864	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	83
PID 1864 wrote to memory of 4488	1864	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	83
PID 1864 wrote to memory of 4488	1864	5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe	83
PID 4488 wrote to memory of 616	4488	helper.exe	84
PID 4488 wrote to memory of 616	4488	helper.exe	84
PID 4488 wrote to memory of 616	4488	helper.exe	84
PID 4488 wrote to memory of 616	4488	helper.exe	84
PID 4488 wrote to memory of 616	4488	helper.exe	84
PID 4488 wrote to memory of 616	4488	helper.exe	84
PID 4488 wrote to memory of 616	4488	helper.exe	84
PID 4488 wrote to memory of 616	4488	helper.exe	84
PID 616 wrote to memory of 1864	616	helper.exe	82
PID 616 wrote to memory of 1864	616	helper.exe	82
PID 616 wrote to memory of 1864	616	helper.exe	82
PID 616 wrote to memory of 1864	616	helper.exe	82
PID 616 wrote to memory of 1864	616	helper.exe	82

C:\Users\Admin\AppData\Local\Temp\5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe
"C:\Users\Admin\AppData\Local\Temp\5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Users\Admin\AppData\Local\Temp\5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe
  "C:\Users\Admin\AppData\Local\Temp\5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:1864
- - C:\ProgramData\901897\helper.exe
    "C:\ProgramData\901897\helper.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4488
  - - C:\ProgramData\901897\helper.exe
      "C:\ProgramData\901897\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:616

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

C:\ProgramData\901897\helper.exe

Filesize
363KB

MD5
407ad0b8ca4c0d6fdf45497b6e5e91b3

SHA1
b904a4b9b05ff476c14b1c3dd1de55c7cbab0654

SHA256
5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383

SHA512
32c2f382b19298cf4e6978c44a09a33bb9ee0912d89ebf0138139f1618f3e8640474c78a97f3815dea4f740c177ef809efbf2a6d45e9588958d3fa7a654c9b98

Download Submit
C:\ProgramData\901897\helper.exe

Filesize
363KB

MD5
407ad0b8ca4c0d6fdf45497b6e5e91b3

SHA1
b904a4b9b05ff476c14b1c3dd1de55c7cbab0654

SHA256
5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383

SHA512
32c2f382b19298cf4e6978c44a09a33bb9ee0912d89ebf0138139f1618f3e8640474c78a97f3815dea4f740c177ef809efbf2a6d45e9588958d3fa7a654c9b98

Download Submit
C:\ProgramData\901897\helper.exe

Filesize
363KB

MD5
407ad0b8ca4c0d6fdf45497b6e5e91b3

SHA1
b904a4b9b05ff476c14b1c3dd1de55c7cbab0654

SHA256
5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383

SHA512
32c2f382b19298cf4e6978c44a09a33bb9ee0912d89ebf0138139f1618f3e8640474c78a97f3815dea4f740c177ef809efbf2a6d45e9588958d3fa7a654c9b98

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\5afacb39e2b3de26c60c6c4e96cf172dd952e20e7b081dd498a7157d8cb99383.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

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

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
memory/616-148-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/616-152-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/1864-149-0x0000000006C40000-0x0000000006C57000-memory.dmp

Filesize
92KB

Download
memory/1864-137-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/1864-153-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/1864-134-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1864-151-0x0000000006C40000-0x0000000006C57000-memory.dmp

Filesize
92KB

Download
memory/1864-147-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/1864-150-0x0000000006C40000-0x0000000006C57000-memory.dmp

Filesize
92KB

Download
memory/2824-132-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/2824-136-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/4488-146-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/4488-141-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download