luminosity | 978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
29-10-2022 13:01

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General

Target

978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe
Size

334KB
MD5

64e30d1221acec586a7891837aa32ba0
SHA1

9c8d57a46c2e916ab2a9661bb8d2f8de5c8575ab
SHA256

978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526
SHA512

3e35da1a1eae02d1a02d5ebb48403778e7e3049f735a6ffcb62318b4b99f4303f83cb9ab36bb3dcec82266b7477d1af32f7a092b033133eefb6adacd979437c4
SSDEEP

6144:Dq9tNBg54SOPiH3LTOwIDi4bNu7H4fXAKucXLAey/xHVanM4oVUzp8al0LxfP59F:V5l3+wI3hvd7LA5/+MrUt8aQfP0e

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\\326646\\sysmon.exe\""	sysmon.exe

Executes dropped EXE 4 IoCs

pid	Process
3256	sysmon.exe
4072	sysmon.exe
4536	sysmon.exe
1344	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	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.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\\326646\\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 1884 set thread context of 4912	1884	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	84
PID 3256 set thread context of 1344	3256	sysmon.exe	88

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
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
4912	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe
4912	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe
1344	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4912	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1344	sysmon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1344	sysmon.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 4912	1884	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	84
PID 1884 wrote to memory of 4912	1884	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	84
PID 1884 wrote to memory of 4912	1884	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	84
PID 1884 wrote to memory of 4912	1884	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	84
PID 1884 wrote to memory of 4912	1884	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	84
PID 1884 wrote to memory of 4912	1884	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	84
PID 1884 wrote to memory of 4912	1884	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	84
PID 1884 wrote to memory of 4912	1884	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	84
PID 4912 wrote to memory of 3256	4912	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	85
PID 4912 wrote to memory of 3256	4912	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	85
PID 4912 wrote to memory of 3256	4912	978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe	85
PID 3256 wrote to memory of 4072	3256	sysmon.exe	86
PID 3256 wrote to memory of 4072	3256	sysmon.exe	86
PID 3256 wrote to memory of 4072	3256	sysmon.exe	86
PID 3256 wrote to memory of 4536	3256	sysmon.exe	87
PID 3256 wrote to memory of 4536	3256	sysmon.exe	87
PID 3256 wrote to memory of 4536	3256	sysmon.exe	87
PID 3256 wrote to memory of 1344	3256	sysmon.exe	88
PID 3256 wrote to memory of 1344	3256	sysmon.exe	88
PID 3256 wrote to memory of 1344	3256	sysmon.exe	88
PID 3256 wrote to memory of 1344	3256	sysmon.exe	88
PID 3256 wrote to memory of 1344	3256	sysmon.exe	88
PID 3256 wrote to memory of 1344	3256	sysmon.exe	88
PID 3256 wrote to memory of 1344	3256	sysmon.exe	88
PID 3256 wrote to memory of 1344	3256	sysmon.exe	88
PID 1344 wrote to memory of 4912	1344	sysmon.exe	84
PID 1344 wrote to memory of 4912	1344	sysmon.exe	84
PID 1344 wrote to memory of 4912	1344	sysmon.exe	84
PID 1344 wrote to memory of 4912	1344	sysmon.exe	84
PID 1344 wrote to memory of 4912	1344	sysmon.exe	84

C:\Users\Admin\AppData\Local\Temp\978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe
"C:\Users\Admin\AppData\Local\Temp\978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Users\Admin\AppData\Local\Temp\978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe
  "C:\Users\Admin\AppData\Local\Temp\978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:4912
- - C:\ProgramData\326646\sysmon.exe
    "C:\ProgramData\326646\sysmon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3256
  - - C:\ProgramData\326646\sysmon.exe
      "C:\ProgramData\326646\sysmon.exe"
      4⤵
      Executes dropped EXE
      PID:4072
  - - C:\ProgramData\326646\sysmon.exe
      "C:\ProgramData\326646\sysmon.exe"
      4⤵
      Executes dropped EXE
      PID:4536
  - - C:\ProgramData\326646\sysmon.exe
      "C:\ProgramData\326646\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:1344

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

Replay Monitor

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Downloads

C:\ProgramData\326646\sysmon.exe

Filesize
334KB

MD5
64e30d1221acec586a7891837aa32ba0

SHA1
9c8d57a46c2e916ab2a9661bb8d2f8de5c8575ab

SHA256
978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526

SHA512
3e35da1a1eae02d1a02d5ebb48403778e7e3049f735a6ffcb62318b4b99f4303f83cb9ab36bb3dcec82266b7477d1af32f7a092b033133eefb6adacd979437c4

Download Submit
C:\ProgramData\326646\sysmon.exe

Filesize
334KB

MD5
64e30d1221acec586a7891837aa32ba0

SHA1
9c8d57a46c2e916ab2a9661bb8d2f8de5c8575ab

SHA256
978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526

SHA512
3e35da1a1eae02d1a02d5ebb48403778e7e3049f735a6ffcb62318b4b99f4303f83cb9ab36bb3dcec82266b7477d1af32f7a092b033133eefb6adacd979437c4

Download Submit
C:\ProgramData\326646\sysmon.exe

Filesize
334KB

MD5
64e30d1221acec586a7891837aa32ba0

SHA1
9c8d57a46c2e916ab2a9661bb8d2f8de5c8575ab

SHA256
978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526

SHA512
3e35da1a1eae02d1a02d5ebb48403778e7e3049f735a6ffcb62318b4b99f4303f83cb9ab36bb3dcec82266b7477d1af32f7a092b033133eefb6adacd979437c4

Download Submit
C:\ProgramData\326646\sysmon.exe

Filesize
334KB

MD5
64e30d1221acec586a7891837aa32ba0

SHA1
9c8d57a46c2e916ab2a9661bb8d2f8de5c8575ab

SHA256
978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526

SHA512
3e35da1a1eae02d1a02d5ebb48403778e7e3049f735a6ffcb62318b4b99f4303f83cb9ab36bb3dcec82266b7477d1af32f7a092b033133eefb6adacd979437c4

Download Submit
C:\ProgramData\326646\sysmon.exe

Filesize
334KB

MD5
64e30d1221acec586a7891837aa32ba0

SHA1
9c8d57a46c2e916ab2a9661bb8d2f8de5c8575ab

SHA256
978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526

SHA512
3e35da1a1eae02d1a02d5ebb48403778e7e3049f735a6ffcb62318b4b99f4303f83cb9ab36bb3dcec82266b7477d1af32f7a092b033133eefb6adacd979437c4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\978348543f663b01ca6653042fbfdddf72d26f6c418c8e2c9a6a20857accd526.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\sysmon.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
memory/1344-160-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/1344-155-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/1884-132-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/1884-139-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/3256-144-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/3256-154-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/4912-140-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/4912-136-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/4912-134-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/4912-156-0x0000000006B70000-0x0000000006B87000-memory.dmp

Filesize
92KB

Download
memory/4912-157-0x0000000006B70000-0x0000000006B87000-memory.dmp

Filesize
92KB

Download
memory/4912-158-0x0000000006B70000-0x0000000006B87000-memory.dmp

Filesize
92KB

Download
memory/4912-159-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/4912-161-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download