luminosity | 2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
26-11-2022 22:10

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General

Target

2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe
Size

195KB
MD5

21dd8986af501f9fc28baabd8e186870
SHA1

1eda9f8e2692e61fbff86edc148339ca94790aaf
SHA256

2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd
SHA512

c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a
SSDEEP

6144:0aBUduaP4zzzVooBIwf1Jd+X5RU6UPxhBIP:VfaSJH5IzU6UPXB

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\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\479666\\csrd.exe\""	csrd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	csrd.exe

Executes dropped EXE 5 IoCs

pid	Process
1760	csrd.exe
1576	csrd.exe
916	csrd.exe
1468	csrd.exe
1404	csrd.exe

Loads dropped DLL 11 IoCs

pid	Process
848	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe
1760	csrd.exe
1760	csrd.exe
1760	csrd.exe
1760	csrd.exe
1760	csrd.exe
1760	csrd.exe
1760	csrd.exe
1404	csrd.exe
1404	csrd.exe
1404	csrd.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\csrdLink = "\"C:\\ProgramData\\479666\\csrd.exe\""	csrd.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1092 set thread context of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1760 set thread context of 1404	1760	csrd.exe	33

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 6 IoCs

pid	Process
1760	csrd.exe
1760	csrd.exe
1760	csrd.exe
1760	csrd.exe
1760	csrd.exe
1760	csrd.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
848	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe
Token: SeDebugPrivilege	1760	csrd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1404	csrd.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 1092 wrote to memory of 848	1092	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	27
PID 848 wrote to memory of 1760	848	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	29
PID 848 wrote to memory of 1760	848	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	29
PID 848 wrote to memory of 1760	848	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	29
PID 848 wrote to memory of 1760	848	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	29
PID 848 wrote to memory of 1760	848	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	29
PID 848 wrote to memory of 1760	848	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	29
PID 848 wrote to memory of 1760	848	2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe	29
PID 1760 wrote to memory of 1576	1760	csrd.exe	30
PID 1760 wrote to memory of 1576	1760	csrd.exe	30
PID 1760 wrote to memory of 1576	1760	csrd.exe	30
PID 1760 wrote to memory of 1576	1760	csrd.exe	30
PID 1760 wrote to memory of 1576	1760	csrd.exe	30
PID 1760 wrote to memory of 1576	1760	csrd.exe	30
PID 1760 wrote to memory of 1576	1760	csrd.exe	30
PID 1760 wrote to memory of 916	1760	csrd.exe	31
PID 1760 wrote to memory of 916	1760	csrd.exe	31
PID 1760 wrote to memory of 916	1760	csrd.exe	31
PID 1760 wrote to memory of 916	1760	csrd.exe	31
PID 1760 wrote to memory of 916	1760	csrd.exe	31
PID 1760 wrote to memory of 916	1760	csrd.exe	31
PID 1760 wrote to memory of 916	1760	csrd.exe	31
PID 1760 wrote to memory of 1468	1760	csrd.exe	32
PID 1760 wrote to memory of 1468	1760	csrd.exe	32
PID 1760 wrote to memory of 1468	1760	csrd.exe	32
PID 1760 wrote to memory of 1468	1760	csrd.exe	32
PID 1760 wrote to memory of 1468	1760	csrd.exe	32
PID 1760 wrote to memory of 1468	1760	csrd.exe	32
PID 1760 wrote to memory of 1468	1760	csrd.exe	32
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33
PID 1760 wrote to memory of 1404	1760	csrd.exe	33

C:\Users\Admin\AppData\Local\Temp\2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe
"C:\Users\Admin\AppData\Local\Temp\2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1092
- C:\Users\Admin\AppData\Local\Temp\2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe
  "C:\Users\Admin\AppData\Local\Temp\2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:848
- - C:\ProgramData\479666\csrd.exe
    "C:\ProgramData\479666\csrd.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1760
  - - C:\ProgramData\479666\csrd.exe
      "C:\ProgramData\479666\csrd.exe"
      4⤵
      Executes dropped EXE
      PID:1576
  - - C:\ProgramData\479666\csrd.exe
      "C:\ProgramData\479666\csrd.exe"
      4⤵
      Executes dropped EXE
      PID:916
  - - C:\ProgramData\479666\csrd.exe
      "C:\ProgramData\479666\csrd.exe"
      4⤵
      Executes dropped EXE
      PID:1468
  - - C:\ProgramData\479666\csrd.exe
      "C:\ProgramData\479666\csrd.exe"
      4⤵
      Modifies WinLogon for persistence
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Drops file in System32 directory
      Suspicious use of SetWindowsHookEx
      PID:1404

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
C:\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
C:\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
C:\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
C:\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
C:\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
\ProgramData\479666\csrd.exe

Filesize
195KB

MD5
21dd8986af501f9fc28baabd8e186870

SHA1
1eda9f8e2692e61fbff86edc148339ca94790aaf

SHA256
2d3ca2dafa9c3bd482d4b185abe31c4012050defec36af091543f96303484abd

SHA512
c3e063be0ad9e06097f36c06e74c126c871828a463b46046265092afb176bcde8c9e90019dfdb157562918cf580c7c075cdac34a2bed8998e81ec449c410f29a

Download Submit
memory/848-57-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/848-64-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/848-61-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/848-67-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/848-59-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/848-105-0x0000000073C70000-0x000000007421B000-memory.dmp

Filesize
5.7MB

Download
memory/848-69-0x0000000073C70000-0x000000007421B000-memory.dmp

Filesize
5.7MB

Download
memory/848-87-0x0000000073C70000-0x000000007421B000-memory.dmp

Filesize
5.7MB

Download
memory/848-56-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1092-65-0x0000000073CF0000-0x000000007429B000-memory.dmp

Filesize
5.7MB

Download
memory/1092-54-0x0000000074C91000-0x0000000074C93000-memory.dmp

Filesize
8KB

Download
memory/1092-55-0x0000000073CF0000-0x000000007429B000-memory.dmp

Filesize
5.7MB

Download
memory/1404-104-0x0000000073C70000-0x000000007421B000-memory.dmp

Filesize
5.7MB

Download
memory/1404-106-0x0000000073C70000-0x000000007421B000-memory.dmp

Filesize
5.7MB

Download
memory/1760-100-0x0000000073C70000-0x000000007421B000-memory.dmp

Filesize
5.7MB

Download
memory/1760-78-0x0000000073C70000-0x000000007421B000-memory.dmp

Filesize
5.7MB

Download