luminosity | 3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0

Analysis

max time kernel
164s
max time network
195s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
01-07-2022 05:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
Size

1.4MB
MD5

5e045da5143cb22634f71ab931e1ee46
SHA1

a3c226344a934a7635757dfed37fc510039cedb0
SHA256

3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0
SHA512

722771a4a5dca75d5d85e06bfca4054563334ff53bbf36a0ac636b8976eb7b0d8be2068653750f1a8dafa7d893fb250deba6e6daa60a6225b258f3bb0bdd9e80

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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\307393\\sysmon.exe\""	sysmon.exe

Executes dropped EXE 2 IoCs

pid	Process
4512	sysmon.exe
4124	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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\System Monitor = "\"C:\\ProgramData\\307393\\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 2860 set thread context of 1584	2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe	78
PID 4512 set thread context of 4124	4512	sysmon.exe	82

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
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
4512	sysmon.exe
4512	sysmon.exe
4512	sysmon.exe
4512	sysmon.exe
4512	sysmon.exe
4512	sysmon.exe
4512	sysmon.exe
4512	sysmon.exe
4512	sysmon.exe
4512	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
1584	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
1584	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe
4124	sysmon.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
4512	sysmon.exe
4512	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1584	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4124	sysmon.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 1584	2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe	78
PID 2860 wrote to memory of 1584	2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe	78
PID 2860 wrote to memory of 1584	2860	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe	78
PID 1584 wrote to memory of 4512	1584	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe	81
PID 1584 wrote to memory of 4512	1584	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe	81
PID 1584 wrote to memory of 4512	1584	3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe	81
PID 4512 wrote to memory of 4124	4512	sysmon.exe	82
PID 4512 wrote to memory of 4124	4512	sysmon.exe	82
PID 4512 wrote to memory of 4124	4512	sysmon.exe	82
PID 4124 wrote to memory of 1584	4124	sysmon.exe	78
PID 4124 wrote to memory of 1584	4124	sysmon.exe	78
PID 4124 wrote to memory of 1584	4124	sysmon.exe	78
PID 4124 wrote to memory of 1584	4124	sysmon.exe	78
PID 4124 wrote to memory of 1584	4124	sysmon.exe	78

C:\Users\Admin\AppData\Local\Temp\3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
"C:\Users\Admin\AppData\Local\Temp\3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Users\Admin\AppData\Local\Temp\3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe
  "C:\Users\Admin\AppData\Local\Temp\3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:1584
- - C:\ProgramData\307393\sysmon.exe
    "C:\ProgramData\307393\sysmon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:4512
  - - C:\ProgramData\307393\sysmon.exe
      "C:\ProgramData\307393\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 WriteProcessMemory
      PID:4124

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

Loading Replay Monitor...

Downloads

C:\ProgramData\307393\sysmon.exe

Filesize
1.4MB

MD5
5e045da5143cb22634f71ab931e1ee46

SHA1
a3c226344a934a7635757dfed37fc510039cedb0

SHA256
3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0

SHA512
722771a4a5dca75d5d85e06bfca4054563334ff53bbf36a0ac636b8976eb7b0d8be2068653750f1a8dafa7d893fb250deba6e6daa60a6225b258f3bb0bdd9e80

Download Submit
C:\ProgramData\307393\sysmon.exe

Filesize
1.4MB

MD5
5e045da5143cb22634f71ab931e1ee46

SHA1
a3c226344a934a7635757dfed37fc510039cedb0

SHA256
3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0

SHA512
722771a4a5dca75d5d85e06bfca4054563334ff53bbf36a0ac636b8976eb7b0d8be2068653750f1a8dafa7d893fb250deba6e6daa60a6225b258f3bb0bdd9e80

Download Submit
C:\ProgramData\307393\sysmon.exe

Filesize
1.4MB

MD5
5e045da5143cb22634f71ab931e1ee46

SHA1
a3c226344a934a7635757dfed37fc510039cedb0

SHA256
3eb7945613b579e82e8377fc0097e42fe6bc64047da17683bc9b317c412be9b0

SHA512
722771a4a5dca75d5d85e06bfca4054563334ff53bbf36a0ac636b8976eb7b0d8be2068653750f1a8dafa7d893fb250deba6e6daa60a6225b258f3bb0bdd9e80

Download Submit
memory/1584-135-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/1584-134-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1584-136-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1584-137-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/1584-152-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/1584-133-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1584-131-0x0000000000960000-0x000000000099E000-memory.dmp

Filesize
248KB

Download
memory/1584-151-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1584-132-0x0000000000960000-0x000000000099E000-memory.dmp

Filesize
248KB

Download
memory/1584-150-0x0000000005F10000-0x0000000005F27000-memory.dmp

Filesize
92KB

Download
memory/1584-149-0x0000000005F10000-0x0000000005F27000-memory.dmp

Filesize
92KB

Download
memory/1584-148-0x0000000005F10000-0x0000000005F27000-memory.dmp

Filesize
92KB

Download
memory/4124-147-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4124-146-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4124-145-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/4124-144-0x0000000000860000-0x000000000089E000-memory.dmp

Filesize
248KB

Download