luminosity | d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd

Analysis

max time kernel
151s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 08:33

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General

Target
d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe
Size 1.2MB
Sample221127-kf9mfacf95
SHA256 d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd
MD5 1ab34989b3e13257b840a534734501c7
SHA1 3d5364edfdef0fc57dd0830406b774e63eab6919
SHA512 481a12839f4fd3cea53f59b8be1d522cb9df37b38512061ee06c877202978749f13875e8f095e14c46b2a13266f1a24c474794a2127bbbe41dea83f5c6b20166
SSDEEP 12288:200kVCDhjlrQaGeZ/lSvF08nfQ1eRSvnX:200kVCDhjlrQaLZtSvJfu28n
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

luminosity evasion persistence rat trojan

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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\792969\\sysmon.exe\""	sysmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	sysmon.exe

UAC bypass 3 TTPs 5 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	regedit.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	regedit.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	sysmon.exe

Executes dropped EXE 4 IoCs

pid	Process
528	sysmon.exe
312	sysmon.exe
1932	sysmon.exe
3560	sysmon.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\System Monitor = "\"C:\\ProgramData\\792969\\sysmon.exe\""	sysmon.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	sysmon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	sysmon.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.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 4 IoCs

description	pid	Process	procid_target
PID 4868 set thread context of 5008	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	82
PID 528 set thread context of 3560	528	sysmon.exe	87
PID 528 set thread context of 1932	528	sysmon.exe	88
PID 528 set thread context of 312	528	sysmon.exe	89

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Runs regedit.exe 1 IoCs

pid	Process
3624	regedit.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
5008	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe
5008	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe
3560	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
5008	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	sysmon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3560	sysmon.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4868 wrote to memory of 5008	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	82
PID 4868 wrote to memory of 5008	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	82
PID 4868 wrote to memory of 5008	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	82
PID 4868 wrote to memory of 5008	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	82
PID 4868 wrote to memory of 5008	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	82
PID 4868 wrote to memory of 5008	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	82
PID 4868 wrote to memory of 5008	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	82
PID 4868 wrote to memory of 5008	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	82
PID 4868 wrote to memory of 2256	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	83
PID 4868 wrote to memory of 2256	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	83
PID 4868 wrote to memory of 2256	4868	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	83
PID 2256 wrote to memory of 3624	2256	cmd.exe	85
PID 2256 wrote to memory of 3624	2256	cmd.exe	85
PID 2256 wrote to memory of 3624	2256	cmd.exe	85
PID 5008 wrote to memory of 528	5008	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	86
PID 5008 wrote to memory of 528	5008	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	86
PID 5008 wrote to memory of 528	5008	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe	86
PID 528 wrote to memory of 312	528	sysmon.exe	89
PID 528 wrote to memory of 312	528	sysmon.exe	89
PID 528 wrote to memory of 312	528	sysmon.exe	89
PID 528 wrote to memory of 1932	528	sysmon.exe	88
PID 528 wrote to memory of 1932	528	sysmon.exe	88
PID 528 wrote to memory of 1932	528	sysmon.exe	88
PID 528 wrote to memory of 3560	528	sysmon.exe	87
PID 528 wrote to memory of 3560	528	sysmon.exe	87
PID 528 wrote to memory of 3560	528	sysmon.exe	87
PID 528 wrote to memory of 3560	528	sysmon.exe	87
PID 528 wrote to memory of 3560	528	sysmon.exe	87
PID 528 wrote to memory of 3560	528	sysmon.exe	87
PID 528 wrote to memory of 3560	528	sysmon.exe	87
PID 528 wrote to memory of 3560	528	sysmon.exe	87
PID 3560 wrote to memory of 5008	3560	sysmon.exe	82
PID 3560 wrote to memory of 5008	3560	sysmon.exe	82
PID 3560 wrote to memory of 5008	3560	sysmon.exe	82
PID 3560 wrote to memory of 5008	3560	sysmon.exe	82
PID 3560 wrote to memory of 5008	3560	sysmon.exe	82

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	sysmon.exe

C:\Users\Admin\AppData\Local\Temp\d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe
"C:\Users\Admin\AppData\Local\Temp\d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe"
1⤵
- UAC bypass
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4868
- C:\Users\Admin\AppData\Local\Temp\d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe
  "C:\Users\Admin\AppData\Local\Temp\d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:5008
- - C:\ProgramData\792969\sysmon.exe
    "C:\ProgramData\792969\sysmon.exe"
    3⤵
    - UAC bypass
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    - System policy modification
    PID:528
  - - C:\ProgramData\792969\sysmon.exe
      "C:\ProgramData\792969\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:3560
  - - C:\ProgramData\792969\sysmon.exe
      "C:\ProgramData\792969\sysmon.exe"
      4⤵
      Executes dropped EXE
      PID:1932
  - - C:\ProgramData\792969\sysmon.exe
      "C:\ProgramData\792969\sysmon.exe"
      4⤵
      Executes dropped EXE
      PID:312
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ac.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2256
- - C:\Windows\SysWOW64\regedit.exe
    regedit.exe /s "C:\Users\Admin\AppData\Local\Temp\ac.bat"
    3⤵
    - UAC bypass
    - Runs regedit.exe
    PID:3624

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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sysmon.exe

Path C:\ProgramData\792969\sysmon.exe
Size 1.2MB
SHA256 d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd
MD5 1ab34989b3e13257b840a534734501c7
SHA1 3d5364edfdef0fc57dd0830406b774e63eab6919
SHA512 481a12839f4fd3cea53f59b8be1d522cb9df37b38512061ee06c877202978749f13875e8f095e14c46b2a13266f1a24c474794a2127bbbe41dea83f5c6b20166
SSDEEP 12288:200kVCDhjlrQaGeZ/lSvF08nfQ1eRSvnX:200kVCDhjlrQaLZtSvJfu28n
MD5 SHA1 SHA512 SSDEEP

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sysmon.exe

Path C:\ProgramData\792969\sysmon.exe
Size 1.2MB
SHA256 d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd
MD5 1ab34989b3e13257b840a534734501c7
SHA1 3d5364edfdef0fc57dd0830406b774e63eab6919
SHA512 481a12839f4fd3cea53f59b8be1d522cb9df37b38512061ee06c877202978749f13875e8f095e14c46b2a13266f1a24c474794a2127bbbe41dea83f5c6b20166
SSDEEP 12288:200kVCDhjlrQaGeZ/lSvF08nfQ1eRSvnX:200kVCDhjlrQaLZtSvJfu28n
MD5 SHA1 SHA512 SSDEEP

Submit Download

sysmon.exe

Path C:\ProgramData\792969\sysmon.exe
Size 1.2MB
SHA256 d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd
MD5 1ab34989b3e13257b840a534734501c7
SHA1 3d5364edfdef0fc57dd0830406b774e63eab6919
SHA512 481a12839f4fd3cea53f59b8be1d522cb9df37b38512061ee06c877202978749f13875e8f095e14c46b2a13266f1a24c474794a2127bbbe41dea83f5c6b20166
SSDEEP 12288:200kVCDhjlrQaGeZ/lSvF08nfQ1eRSvnX:200kVCDhjlrQaLZtSvJfu28n
MD5 SHA1 SHA512 SSDEEP

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sysmon.exe

Path C:\ProgramData\792969\sysmon.exe
Size 1.2MB
SHA256 d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd
MD5 1ab34989b3e13257b840a534734501c7
SHA1 3d5364edfdef0fc57dd0830406b774e63eab6919
SHA512 481a12839f4fd3cea53f59b8be1d522cb9df37b38512061ee06c877202978749f13875e8f095e14c46b2a13266f1a24c474794a2127bbbe41dea83f5c6b20166
SSDEEP 12288:200kVCDhjlrQaGeZ/lSvF08nfQ1eRSvnX:200kVCDhjlrQaLZtSvJfu28n
MD5 SHA1 SHA512 SSDEEP

Submit Download

sysmon.exe

Path C:\ProgramData\792969\sysmon.exe
Size 1.2MB
SHA256 d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd
MD5 1ab34989b3e13257b840a534734501c7
SHA1 3d5364edfdef0fc57dd0830406b774e63eab6919
SHA512 481a12839f4fd3cea53f59b8be1d522cb9df37b38512061ee06c877202978749f13875e8f095e14c46b2a13266f1a24c474794a2127bbbe41dea83f5c6b20166
SSDEEP 12288:200kVCDhjlrQaGeZ/lSvF08nfQ1eRSvnX:200kVCDhjlrQaLZtSvJfu28n
MD5 SHA1 SHA512 SSDEEP

Submit Download

d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\d06fffcff08b714a8068f57f3b7627b40a392fe0df18dcd69aeaa438ead43cdd.exe.log
Size 594B
SHA256 2707fc7f074413881b7bafca05079327b188db6005709951e7f69d39a2af97c0
MD5 fdb26b3b547022b45cfaeee57eafd566
SHA1 11c6798b8a59233f404014c5e79b3363cd564b37
SHA512 44d9bb8c0f0b341690d00eda86e15a50f7f29ce9595925c1a2a7e19ad26202d10049a7a97bea278ecb7d429ad555de8edceeffff664d4b06309a9410a09bb700
MD5 SHA1 SHA512

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ac.bat

Path C:\Users\Admin\AppData\Local\Temp\ac.bat
Size 256B
SHA256 12286ee34a77b701f9d6fbcd507c956961bf51d91283a8e094df221eea396577
MD5 5901919c1b3ae845588953f254445dae
SHA1 3d24fd5c5a0f61c1b239c53600bcff11465a442f
SHA512 e37602dae72a1ce8434d7cafd460637a88b372ab36ea5338dda9340b5637d9e2df44b9fea571d2fed1cd3ac28f4ddb8e1d6c16e563f8ec12c033df0f1522e0c7
MD5 SHA1 SHA512

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memory/528-146-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/528-155-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/3560-161-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/3560-156-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4868-141-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4868-132-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/5008-134-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/5008-136-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/5008-157-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/5008-158-0x0000000006D50000-0x0000000006D67000-memory.dmp

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memory/5008-159-0x0000000006D50000-0x0000000006D67000-memory.dmp

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memory/5008-160-0x0000000006D50000-0x0000000006D67000-memory.dmp

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memory/5008-138-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/5008-163-0x0000000074CB0000-0x0000000075261000-memory.dmp

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