luminosity | b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7d

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 02:23

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General

Target

b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe
Size

545KB
MD5

f664d833881df94c0f9031a9f7ec4a10
SHA1

3dacab483cf100212cdfa882a3e84d473c16cc6a
SHA256

b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7d
SHA512

c65a807cda69c7f301754b815e2492f773e2f9e0101772b7983c8dd10f84ada189a8941c6bdc73f7f73f58ee8b717eb76a05e8e9b8204197fb5ff7b073f267a9
SSDEEP

12288:+nr9KNeYASGqoIB5PNaqBDnhiBnr9KNeYASGqoIB5PNaqBDnhi:ar0NVASPoWPdtAr0NVASPoWPdt

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
Luminosity family
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\""	winlogon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\592934\\winlogon.exe\""	winlogon.exe

Executes dropped EXE 2 IoCs

pid	Process
2600	winlogon.exe
2364	winlogon.exe

Loads dropped DLL 2 IoCs

pid	Process
2956	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe
2956	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Winlogon = "\"C:\\ProgramData\\592934\\winlogon.exe\""	winlogon.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2384 set thread context of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2600 set thread context of 2364	2600	winlogon.exe	33

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	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogon.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2956	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2600	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe
2364	winlogon.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2956	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe
Token: SeDebugPrivilege	2600	winlogon.exe
Token: SeDebugPrivilege	2364	winlogon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2364	winlogon.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2384 wrote to memory of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2384 wrote to memory of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2384 wrote to memory of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2384 wrote to memory of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2384 wrote to memory of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2384 wrote to memory of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2384 wrote to memory of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2384 wrote to memory of 2956	2384	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	30
PID 2956 wrote to memory of 2600	2956	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	32
PID 2956 wrote to memory of 2600	2956	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	32
PID 2956 wrote to memory of 2600	2956	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	32
PID 2956 wrote to memory of 2600	2956	b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe	32
PID 2600 wrote to memory of 2364	2600	winlogon.exe	33
PID 2600 wrote to memory of 2364	2600	winlogon.exe	33
PID 2600 wrote to memory of 2364	2600	winlogon.exe	33
PID 2600 wrote to memory of 2364	2600	winlogon.exe	33
PID 2600 wrote to memory of 2364	2600	winlogon.exe	33
PID 2600 wrote to memory of 2364	2600	winlogon.exe	33
PID 2600 wrote to memory of 2364	2600	winlogon.exe	33
PID 2600 wrote to memory of 2364	2600	winlogon.exe	33
PID 2600 wrote to memory of 2364	2600	winlogon.exe	33
PID 2364 wrote to memory of 2384	2364	winlogon.exe	29
PID 2364 wrote to memory of 2384	2364	winlogon.exe	29
PID 2364 wrote to memory of 2384	2364	winlogon.exe	29
PID 2364 wrote to memory of 2384	2364	winlogon.exe	29
PID 2364 wrote to memory of 2384	2364	winlogon.exe	29
PID 2364 wrote to memory of 2956	2364	winlogon.exe	30
PID 2364 wrote to memory of 2956	2364	winlogon.exe	30
PID 2364 wrote to memory of 2956	2364	winlogon.exe	30
PID 2364 wrote to memory of 2956	2364	winlogon.exe	30
PID 2364 wrote to memory of 2956	2364	winlogon.exe	30
PID 2364 wrote to memory of 2600	2364	winlogon.exe	32
PID 2364 wrote to memory of 2600	2364	winlogon.exe	32
PID 2364 wrote to memory of 2600	2364	winlogon.exe	32
PID 2364 wrote to memory of 2600	2364	winlogon.exe	32
PID 2364 wrote to memory of 2600	2364	winlogon.exe	32

C:\Users\Admin\AppData\Local\Temp\b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe
"C:\Users\Admin\AppData\Local\Temp\b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Users\Admin\AppData\Local\Temp\b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe
  "C:\Users\Admin\AppData\Local\Temp\b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7dN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:2956
- - C:\ProgramData\592934\winlogon.exe
    "C:\ProgramData\592934\winlogon.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:2600
  - - C:\ProgramData\592934\winlogon.exe
      "C:\ProgramData\592934\winlogon.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:2364

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\ProgramData\592934\winlogon.exe

Filesize
545KB

MD5
f664d833881df94c0f9031a9f7ec4a10

SHA1
3dacab483cf100212cdfa882a3e84d473c16cc6a

SHA256
b784eb06ba5a377af68910ca46e012ca64337c4408bb75697201a4765e0bcc7d

SHA512
c65a807cda69c7f301754b815e2492f773e2f9e0101772b7983c8dd10f84ada189a8941c6bdc73f7f73f58ee8b717eb76a05e8e9b8204197fb5ff7b073f267a9

Download Submit
memory/2364-46-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2384-60-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/2384-3-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2384-63-0x0000000000640000-0x0000000000657000-memory.dmp

Filesize
92KB

Download
memory/2384-59-0x0000000000640000-0x0000000000657000-memory.dmp

Filesize
92KB

Download
memory/2384-57-0x0000000000640000-0x0000000000657000-memory.dmp

Filesize
92KB

Download
memory/2384-62-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/2384-2-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2384-53-0x0000000000640000-0x0000000000657000-memory.dmp

Filesize
92KB

Download
memory/2384-0-0x0000000074201000-0x0000000074202000-memory.dmp

Filesize
4KB

Download
memory/2384-54-0x0000000000640000-0x0000000000657000-memory.dmp

Filesize
92KB

Download
memory/2384-55-0x0000000000640000-0x0000000000657000-memory.dmp

Filesize
92KB

Download
memory/2384-1-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-79-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2600-34-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-35-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-33-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-37-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-86-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2600-83-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2600-81-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2600-87-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2956-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2956-36-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2956-4-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2956-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2956-14-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2956-74-0x0000000000F60000-0x0000000000F61000-memory.dmp

Filesize
4KB

Download
memory/2956-71-0x0000000000E10000-0x0000000000E27000-memory.dmp

Filesize
92KB

Download
memory/2956-69-0x0000000000E10000-0x0000000000E27000-memory.dmp

Filesize
92KB

Download
memory/2956-67-0x0000000000E10000-0x0000000000E27000-memory.dmp

Filesize
92KB

Download
memory/2956-75-0x0000000000E10000-0x0000000000E27000-memory.dmp

Filesize
92KB

Download
memory/2956-19-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2956-20-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2956-16-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2956-18-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2956-6-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2956-89-0x0000000000E10000-0x0000000000E27000-memory.dmp

Filesize
92KB

Download
memory/2956-90-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download