luminosity | 388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677

Analysis

max time kernel
153s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
28/11/2022, 11:39

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General

Target

388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe
Size

274KB
MD5

5b1b1c32c1f2a01b8eba0005d8f28c78
SHA1

2d1e522e37c1c951e73081834126bf432ca2f74c
SHA256

388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677
SHA512

57e9b4db7d0bb3ce0e16296f03d84a4aa22b3ef60d435c0930398c8e21e916d746a3971a698fdeed0b09c94767f33a968069f5c7432cbc300affbba03a6b203e
SSDEEP

6144:jr7fCNFvumQBgonmJaLo/+/+YXuYlswS9MvODqFXTzSNYVhW:jvfIIBgkS/+mE2vpqQNy

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\""	lsass.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\\782300\\lsass.exe\""	lsass.exe

Executes dropped EXE 2 IoCs

pid	Process
1788	lsass.exe
2584	lsass.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	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.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\Local Security Authority Process = "\"C:\\ProgramData\\782300\\lsass.exe\""	lsass.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\clientsvr.exe	lsass.exe
File opened for modification	C:\Windows\SysWOW64\clientsvr.exe	lsass.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2300 set thread context of 3872	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	90
PID 1788 set thread context of 2584	1788	lsass.exe	93

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
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe
2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
3872	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe
3872	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe
2584	lsass.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3872	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe
Token: SeDebugPrivilege	1788	lsass.exe
Token: SeDebugPrivilege	2584	lsass.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2584	lsass.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 3872	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	90
PID 2300 wrote to memory of 3872	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	90
PID 2300 wrote to memory of 3872	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	90
PID 2300 wrote to memory of 3872	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	90
PID 2300 wrote to memory of 3872	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	90
PID 2300 wrote to memory of 3872	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	90
PID 2300 wrote to memory of 3872	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	90
PID 2300 wrote to memory of 3872	2300	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	90
PID 3872 wrote to memory of 1788	3872	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	91
PID 3872 wrote to memory of 1788	3872	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	91
PID 3872 wrote to memory of 1788	3872	388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe	91
PID 1788 wrote to memory of 2584	1788	lsass.exe	93
PID 1788 wrote to memory of 2584	1788	lsass.exe	93
PID 1788 wrote to memory of 2584	1788	lsass.exe	93
PID 1788 wrote to memory of 2584	1788	lsass.exe	93
PID 1788 wrote to memory of 2584	1788	lsass.exe	93
PID 1788 wrote to memory of 2584	1788	lsass.exe	93
PID 1788 wrote to memory of 2584	1788	lsass.exe	93
PID 1788 wrote to memory of 2584	1788	lsass.exe	93
PID 2584 wrote to memory of 2300	2584	lsass.exe	82
PID 2584 wrote to memory of 2300	2584	lsass.exe	82
PID 2584 wrote to memory of 2300	2584	lsass.exe	82
PID 2584 wrote to memory of 2300	2584	lsass.exe	82
PID 2584 wrote to memory of 2300	2584	lsass.exe	82
PID 2584 wrote to memory of 3872	2584	lsass.exe	90
PID 2584 wrote to memory of 3872	2584	lsass.exe	90
PID 2584 wrote to memory of 3872	2584	lsass.exe	90
PID 2584 wrote to memory of 3872	2584	lsass.exe	90
PID 2584 wrote to memory of 3872	2584	lsass.exe	90

C:\Users\Admin\AppData\Local\Temp\388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe
"C:\Users\Admin\AppData\Local\Temp\388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe
  "C:\Users\Admin\AppData\Local\Temp\388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:3872
- - C:\ProgramData\782300\lsass.exe
    "C:\ProgramData\782300\lsass.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1788
  - - C:\ProgramData\782300\lsass.exe
      "C:\ProgramData\782300\lsass.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:2584

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\782300\lsass.exe

Filesize
274KB

MD5
5b1b1c32c1f2a01b8eba0005d8f28c78

SHA1
2d1e522e37c1c951e73081834126bf432ca2f74c

SHA256
388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677

SHA512
57e9b4db7d0bb3ce0e16296f03d84a4aa22b3ef60d435c0930398c8e21e916d746a3971a698fdeed0b09c94767f33a968069f5c7432cbc300affbba03a6b203e

Download Submit
C:\ProgramData\782300\lsass.exe

Filesize
274KB

MD5
5b1b1c32c1f2a01b8eba0005d8f28c78

SHA1
2d1e522e37c1c951e73081834126bf432ca2f74c

SHA256
388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677

SHA512
57e9b4db7d0bb3ce0e16296f03d84a4aa22b3ef60d435c0930398c8e21e916d746a3971a698fdeed0b09c94767f33a968069f5c7432cbc300affbba03a6b203e

Download Submit
C:\ProgramData\782300\lsass.exe

Filesize
274KB

MD5
5b1b1c32c1f2a01b8eba0005d8f28c78

SHA1
2d1e522e37c1c951e73081834126bf432ca2f74c

SHA256
388ff1a07a3e57fb51f2a7e4668e93087e256d7d456c485bf0483a30566f8677

SHA512
57e9b4db7d0bb3ce0e16296f03d84a4aa22b3ef60d435c0930398c8e21e916d746a3971a698fdeed0b09c94767f33a968069f5c7432cbc300affbba03a6b203e

Download Submit
memory/1788-141-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/1788-143-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2300-150-0x00000000076C0000-0x00000000076D7000-memory.dmp

Filesize
92KB

Download
memory/2300-132-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2300-149-0x00000000076C0000-0x00000000076D7000-memory.dmp

Filesize
92KB

Download
memory/2300-148-0x00000000076C0000-0x00000000076D7000-memory.dmp

Filesize
92KB

Download
memory/2300-133-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2584-154-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2584-147-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/3872-137-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/3872-142-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/3872-136-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/3872-135-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3872-151-0x0000000007070000-0x0000000007087000-memory.dmp

Filesize
92KB

Download
memory/3872-152-0x0000000007070000-0x0000000007087000-memory.dmp

Filesize
92KB

Download
memory/3872-153-0x0000000007070000-0x0000000007087000-memory.dmp

Filesize
92KB

Download
memory/3872-155-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download