luminosity | d9ed429cf353367f42e4e28a8b47a3f75fca9269893431b8ea3fe680488f0c1d

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-09-2024 07:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Ui Mod Install.exe
Size

371KB
MD5

1bf80c36479ce542dbb7d94e7bdae9a3
SHA1

c8c0ea7ddad3e3b2e73580a87eb545a165469037
SHA256

032401122c0f05e210254c9bd6cf7b7bc099f5921a82908da95640cd119aaacf
SHA512

9d27de4acd04b52f2073de9e5a75084008d3afb81ee4da5cb2c7d2e2c3b8bfcd18d545174bde05bc814bb52c5e33006a5cf736d7c04233753959b592280853da
SSDEEP

6144:9ssH2YqnbIuLaBzSXPITCTmL102ls8r0X739Dlc3J2TBwmuxHZ3j:rS7LwCgTRj1rU7thcQTBwXxFj

Score

10^/10

luminosity discovery 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

T1547.004

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\""	save.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\273684\\save.exe\""	save.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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	Ui Mod Install.exe

Executes dropped EXE 2 IoCs

pid	Process
4464	save.exe
3948	save.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\save = "\"C:\\ProgramData\\273684\\save.exe\""	save.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3728 set thread context of 2548	3728	Ui Mod Install.exe	87
PID 4464 set thread context of 3948	4464	save.exe	92

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ui Mod Install.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	save.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	save.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ui Mod Install.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3728	Ui Mod Install.exe
3728	Ui Mod Install.exe
4464	save.exe
4464	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
2548	Ui Mod Install.exe
2548	Ui Mod Install.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe
3948	save.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2548	Ui Mod Install.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3728	Ui Mod Install.exe
Token: SeDebugPrivilege	4464	save.exe
Token: SeDebugPrivilege	3948	save.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3948	save.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3728 wrote to memory of 2548	3728	Ui Mod Install.exe	87
PID 3728 wrote to memory of 2548	3728	Ui Mod Install.exe	87
PID 3728 wrote to memory of 2548	3728	Ui Mod Install.exe	87
PID 3728 wrote to memory of 2548	3728	Ui Mod Install.exe	87
PID 3728 wrote to memory of 2548	3728	Ui Mod Install.exe	87
PID 3728 wrote to memory of 2548	3728	Ui Mod Install.exe	87
PID 3728 wrote to memory of 2548	3728	Ui Mod Install.exe	87
PID 3728 wrote to memory of 2548	3728	Ui Mod Install.exe	87
PID 2548 wrote to memory of 4464	2548	Ui Mod Install.exe	89
PID 2548 wrote to memory of 4464	2548	Ui Mod Install.exe	89
PID 2548 wrote to memory of 4464	2548	Ui Mod Install.exe	89
PID 4464 wrote to memory of 3948	4464	save.exe	92
PID 4464 wrote to memory of 3948	4464	save.exe	92
PID 4464 wrote to memory of 3948	4464	save.exe	92
PID 4464 wrote to memory of 3948	4464	save.exe	92
PID 4464 wrote to memory of 3948	4464	save.exe	92
PID 4464 wrote to memory of 3948	4464	save.exe	92
PID 4464 wrote to memory of 3948	4464	save.exe	92
PID 4464 wrote to memory of 3948	4464	save.exe	92
PID 3948 wrote to memory of 2548	3948	save.exe	87
PID 3948 wrote to memory of 2548	3948	save.exe	87
PID 3948 wrote to memory of 2548	3948	save.exe	87
PID 3948 wrote to memory of 2548	3948	save.exe	87
PID 3948 wrote to memory of 2548	3948	save.exe	87

C:\Users\Admin\AppData\Local\Temp\Ui Mod Install.exe
"C:\Users\Admin\AppData\Local\Temp\Ui Mod Install.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3728
- C:\Users\Admin\AppData\Local\Temp\Ui Mod Install.exe
  "C:\Users\Admin\AppData\Local\Temp\Ui Mod Install.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:2548
- - C:\ProgramData\273684\save.exe
    "C:\ProgramData\273684\save.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4464
  - - C:\ProgramData\273684\save.exe
      "C:\ProgramData\273684\save.exe"
      4⤵
      Modifies WinLogon for persistence
      Executes dropped EXE
      Adds Run key to start application
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\273684\save.exe

Filesize
371KB

MD5
1bf80c36479ce542dbb7d94e7bdae9a3

SHA1
c8c0ea7ddad3e3b2e73580a87eb545a165469037

SHA256
032401122c0f05e210254c9bd6cf7b7bc099f5921a82908da95640cd119aaacf

SHA512
9d27de4acd04b52f2073de9e5a75084008d3afb81ee4da5cb2c7d2e2c3b8bfcd18d545174bde05bc814bb52c5e33006a5cf736d7c04233753959b592280853da

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

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
memory/2548-4-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2548-44-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2548-43-0x0000000007180000-0x0000000007197000-memory.dmp

Filesize
92KB

Download
memory/2548-41-0x0000000007180000-0x0000000007197000-memory.dmp

Filesize
92KB

Download
memory/2548-39-0x0000000007180000-0x0000000007197000-memory.dmp

Filesize
92KB

Download
memory/2548-40-0x00000000071A0000-0x00000000071A1000-memory.dmp

Filesize
4KB

Download
memory/2548-10-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2548-38-0x0000000007180000-0x0000000007197000-memory.dmp

Filesize
92KB

Download
memory/2548-11-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2548-37-0x0000000007180000-0x0000000007197000-memory.dmp

Filesize
92KB

Download
memory/2548-29-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2548-14-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/3728-3-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/3728-2-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/3728-8-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/3728-9-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/3728-0-0x0000000074E72000-0x0000000074E73000-memory.dmp

Filesize
4KB

Download
memory/3728-6-0x0000000074E72000-0x0000000074E73000-memory.dmp

Filesize
4KB

Download
memory/3728-1-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/4464-28-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/4464-34-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/4464-27-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/4464-26-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download