luminosity | 4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

General

Target

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
Size

497KB
MD5

efd43d025e05c0a177536119027a082d
SHA1

297bc92df3fce44a73390d8a764a7e19443b63d3
SHA256

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6
SHA512

7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0
SSDEEP

12288:3aKYrm8CYJAjJMS1T3iLlHu3eJ2NfxIy+ew:qt65YGdxJix+ecNfxD+ew

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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\297296\\sysmon.exe\""	sysmon.exe

Executes dropped EXE 3 IoCs

Processes:

sysmon.exesysmon.exesysmon.exe

pid process

4624 sysmon.exe
2704 sysmon.exe
2900 sysmon.exe

pid	process
4624	sysmon.exe
2704	sysmon.exe
2900	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:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exesysmon.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\N1qoHk5CpdbsDmBp = "C:\\Users\\Admin\\AppData\\Roaming\\780bN00j69Ufvb01\\P7yFrTEE2iSD.exe"	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\N1qoHk5CpdbsDmBp1m = "C:\\Users\\Admin\\AppData\\Roaming\\780bN00j69Ufvb01\\1m63lFwyfbLl.exe"	sysmon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\System Monitor = "\"C:\\ProgramData\\297296\\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 2 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exe

description	pid	process	target process
PID 4468 set thread context of 2944	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 4624 set thread context of 2900	4624	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:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exesysmon.exe4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

pid	process
4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
4624	sysmon.exe
4624	sysmon.exe
4624	sysmon.exe
4624	sysmon.exe
4624	sysmon.exe
4624	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2944	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
2944	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe
2900	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

pid process

2944 4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

pid	process
2944	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exesysmon.exe

description	pid	process
Token: SeDebugPrivilege	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
Token: SeDebugPrivilege	4624	sysmon.exe
Token: SeDebugPrivilege	2900	sysmon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

sysmon.exe

pid process

2900 sysmon.exe

pid	process
2900	sysmon.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exesysmon.exesysmon.exe

description	pid	process	target process
PID 4468 wrote to memory of 2944	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 4468 wrote to memory of 2944	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 4468 wrote to memory of 2944	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 4468 wrote to memory of 2944	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 4468 wrote to memory of 2944	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 4468 wrote to memory of 2944	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 4468 wrote to memory of 2944	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 4468 wrote to memory of 2944	4468	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 2944 wrote to memory of 4624	2944	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	sysmon.exe
PID 2944 wrote to memory of 4624	2944	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	sysmon.exe
PID 2944 wrote to memory of 4624	2944	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe	sysmon.exe
PID 4624 wrote to memory of 2704	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2704	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2704	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2900	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2900	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2900	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2900	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2900	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2900	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2900	4624	sysmon.exe	sysmon.exe
PID 4624 wrote to memory of 2900	4624	sysmon.exe	sysmon.exe
PID 2900 wrote to memory of 2944	2900	sysmon.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 2900 wrote to memory of 2944	2900	sysmon.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 2900 wrote to memory of 2944	2900	sysmon.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 2900 wrote to memory of 2944	2900	sysmon.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
PID 2900 wrote to memory of 2944	2900	sysmon.exe	4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe

C:\Users\Admin\AppData\Local\Temp\4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
"C:\Users\Admin\AppData\Local\Temp\4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Users\Admin\AppData\Local\Temp\4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe
  "C:\Users\Admin\AppData\Local\Temp\4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:2944
- - C:\ProgramData\297296\sysmon.exe
    "C:\ProgramData\297296\sysmon.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4624
  - - C:\ProgramData\297296\sysmon.exe
      "C:\ProgramData\297296\sysmon.exe"
      4⤵
      Executes dropped EXE
      PID:2704
  - - C:\ProgramData\297296\sysmon.exe
      "C:\ProgramData\297296\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:2900

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

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Downloads

C:\ProgramData\297296\sysmon.exe

Filesize
497KB

MD5
efd43d025e05c0a177536119027a082d

SHA1
297bc92df3fce44a73390d8a764a7e19443b63d3

SHA256
4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

SHA512
7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0

Download Submit
C:\ProgramData\297296\sysmon.exe

Filesize
497KB

MD5
efd43d025e05c0a177536119027a082d

SHA1
297bc92df3fce44a73390d8a764a7e19443b63d3

SHA256
4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

SHA512
7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0

Download Submit
C:\ProgramData\297296\sysmon.exe

Filesize
497KB

MD5
efd43d025e05c0a177536119027a082d

SHA1
297bc92df3fce44a73390d8a764a7e19443b63d3

SHA256
4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

SHA512
7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0

Download Submit
C:\ProgramData\297296\sysmon.exe

Filesize
497KB

MD5
efd43d025e05c0a177536119027a082d

SHA1
297bc92df3fce44a73390d8a764a7e19443b63d3

SHA256
4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6

SHA512
7a451beae731366a9642c5b5a32957f063d857edb6b782567e763f340e19abe9c4fb7723cbf50c079ecc3f04c7857187e52f69cb1848fbc3132a3a3338afcff0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\4303dc785afdf203181f4854d36034b349cad25b99b91d637d464c3f06143fe6.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

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

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
memory/2704-144-0x0000000000000000-mapping.dmp

Download
memory/2900-151-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/2900-146-0x0000000000000000-mapping.dmp

Download
memory/2900-155-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/2944-134-0x0000000000000000-mapping.dmp

Download
memory/2944-153-0x0000000007480000-0x0000000007497000-memory.dmp

Filesize
92KB

Download
memory/2944-137-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/2944-136-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/2944-157-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/2944-135-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2944-152-0x0000000007480000-0x0000000007497000-memory.dmp

Filesize
92KB

Download
memory/2944-154-0x0000000007480000-0x0000000007497000-memory.dmp

Filesize
92KB

Download
memory/4468-133-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/4468-138-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/4468-132-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/4624-142-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/4624-150-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download
memory/4624-139-0x0000000000000000-mapping.dmp

Download
memory/4624-143-0x0000000075160000-0x0000000075711000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads