luminosity | 27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b

General

Target

27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
Size

1.2MB
MD5

fa6f8b21924d0288cc91e20e710608e0
SHA1

9cfc9f4e732aa278bb880cb1facb58849eb55a3e
SHA256

27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b
SHA512

aaef1619c519f6d570184ce936aeb0b3f5a8f4333e29259619eb7976e67351bc4fd8acac2c21b2075dd27ed57bbce8ba8fe72d8e04126006d2cfe5655223f839
SSDEEP

12288:ZF8e6ej5cQObE7oyWjEZsIWO1F5s8paXERJJKCQ:oen5Omp4EZsIWO1F5s8pa0RJJKC

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

Processes:

sysmon.exe

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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\970790\\sysmon.exe\""	sysmon.exe

Executes dropped EXE 3 IoCs

Processes:

sysmon.exesysmon.exesysmon.exe

pid process

3136 sysmon.exe
3928 sysmon.exe
3964 sysmon.exe

pid	process
3136	sysmon.exe
3928	sysmon.exe
3964	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

Processes:

27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

sysmon.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\System Monitor = "\"C:\\ProgramData\\970790\\sysmon.exe\""	sysmon.exe

Drops file in System32 directory 2 IoCs

Processes:

sysmon.exe

description ioc process

File created C:\Windows\SysWOW64\clientsvr.exe sysmon.exe
File opened for modification C:\Windows\SysWOW64\clientsvr.exe sysmon.exe

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 3 IoCs

Processes:

27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exesysmon.exe

description	pid	process	target process
PID 4000 set thread context of 3972	4000	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 3136 set thread context of 3964	3136	sysmon.exe	sysmon.exe
PID 3136 set thread context of 3928	3136	sysmon.exe	sysmon.exe

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

Processes:

sysmon.exe27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe

pid	process
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3972	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
3972	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe
3964	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe

pid process

3972 27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

sysmon.exe

description pid process

Token: SeDebugPrivilege 3964 sysmon.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

sysmon.exe

pid process

3964 sysmon.exe

pid	process
3972	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe

description	pid	process
Token: SeDebugPrivilege	3964	sysmon.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exesysmon.exesysmon.exe

description	pid	process	target process
PID 4000 wrote to memory of 3972	4000	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 4000 wrote to memory of 3972	4000	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 4000 wrote to memory of 3972	4000	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 4000 wrote to memory of 3972	4000	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 4000 wrote to memory of 3972	4000	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 4000 wrote to memory of 3972	4000	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 4000 wrote to memory of 3972	4000	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 4000 wrote to memory of 3972	4000	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 3972 wrote to memory of 3136	3972	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	sysmon.exe
PID 3972 wrote to memory of 3136	3972	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	sysmon.exe
PID 3972 wrote to memory of 3136	3972	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe	sysmon.exe
PID 3136 wrote to memory of 3928	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3928	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3928	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3964	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3964	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3964	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3964	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3964	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3964	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3964	3136	sysmon.exe	sysmon.exe
PID 3136 wrote to memory of 3964	3136	sysmon.exe	sysmon.exe
PID 3964 wrote to memory of 3972	3964	sysmon.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 3964 wrote to memory of 3972	3964	sysmon.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 3964 wrote to memory of 3972	3964	sysmon.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 3964 wrote to memory of 3972	3964	sysmon.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
PID 3964 wrote to memory of 3972	3964	sysmon.exe	27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe

C:\Users\Admin\AppData\Local\Temp\27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
"C:\Users\Admin\AppData\Local\Temp\27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4000
- C:\Users\Admin\AppData\Local\Temp\27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe
  "C:\Users\Admin\AppData\Local\Temp\27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:3972
- - C:\ProgramData\970790\sysmon.exe
    "C:\ProgramData\970790\sysmon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3136
  - - C:\ProgramData\970790\sysmon.exe
      "C:\ProgramData\970790\sysmon.exe"
      4⤵
      Executes dropped EXE
      PID:3928
  - - C:\ProgramData\970790\sysmon.exe
      "C:\ProgramData\970790\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:3964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\970790\sysmon.exe

Filesize
1.2MB

MD5
fa6f8b21924d0288cc91e20e710608e0

SHA1
9cfc9f4e732aa278bb880cb1facb58849eb55a3e

SHA256
27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b

SHA512
aaef1619c519f6d570184ce936aeb0b3f5a8f4333e29259619eb7976e67351bc4fd8acac2c21b2075dd27ed57bbce8ba8fe72d8e04126006d2cfe5655223f839

Download Submit
C:\ProgramData\970790\sysmon.exe

Filesize
1.2MB

MD5
fa6f8b21924d0288cc91e20e710608e0

SHA1
9cfc9f4e732aa278bb880cb1facb58849eb55a3e

SHA256
27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b

SHA512
aaef1619c519f6d570184ce936aeb0b3f5a8f4333e29259619eb7976e67351bc4fd8acac2c21b2075dd27ed57bbce8ba8fe72d8e04126006d2cfe5655223f839

Download Submit
C:\ProgramData\970790\sysmon.exe

Filesize
1.2MB

MD5
fa6f8b21924d0288cc91e20e710608e0

SHA1
9cfc9f4e732aa278bb880cb1facb58849eb55a3e

SHA256
27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b

SHA512
aaef1619c519f6d570184ce936aeb0b3f5a8f4333e29259619eb7976e67351bc4fd8acac2c21b2075dd27ed57bbce8ba8fe72d8e04126006d2cfe5655223f839

Download Submit
C:\ProgramData\970790\sysmon.exe

Filesize
1.2MB

MD5
fa6f8b21924d0288cc91e20e710608e0

SHA1
9cfc9f4e732aa278bb880cb1facb58849eb55a3e

SHA256
27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b

SHA512
aaef1619c519f6d570184ce936aeb0b3f5a8f4333e29259619eb7976e67351bc4fd8acac2c21b2075dd27ed57bbce8ba8fe72d8e04126006d2cfe5655223f839

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\27fada8a5998904fcbd5104d080b8295846ba0f1cb4c551d7b8179d30edc6b4b.exe.log

Filesize
594B

MD5
fdb26b3b547022b45cfaeee57eafd566

SHA1
11c6798b8a59233f404014c5e79b3363cd564b37

SHA256
2707fc7f074413881b7bafca05079327b188db6005709951e7f69d39a2af97c0

SHA512
44d9bb8c0f0b341690d00eda86e15a50f7f29ce9595925c1a2a7e19ad26202d10049a7a97bea278ecb7d429ad555de8edceeffff664d4b06309a9410a09bb700

Download Submit
memory/3136-152-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/3136-142-0x0000000000000000-mapping.dmp

Download
memory/3964-153-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/3964-146-0x0000000000000000-mapping.dmp

Download
memory/3964-157-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/3972-155-0x0000000007330000-0x0000000007347000-memory.dmp

Filesize
92KB

Download
memory/3972-139-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/3972-136-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3972-134-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3972-154-0x0000000007330000-0x0000000007347000-memory.dmp

Filesize
92KB

Download
memory/3972-141-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/3972-156-0x0000000007330000-0x0000000007347000-memory.dmp

Filesize
92KB

Download
memory/3972-133-0x0000000000000000-mapping.dmp

Download
memory/3972-159-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/4000-138-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/4000-132-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/4000-140-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads