luminosity | 15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029

Analysis

max time kernel
157s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2022, 22:06

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General

Target
15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
Size 2.7MB
Sample221126-11btxagh86
SHA256 15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029
MD5 c8cf5b4e0b41f78a0578afd13d721fd1
SHA1 3c5fea380843bff19cf435322ec7a8a62d1ec3d4
SHA512 f4bf2b8452a253aa45f64c6d05d3c7a1e8ec744a322892e1f03710129e43fa63f0064023341d37dd308be45c9385d50863d2b21461f82e94ba0e67526708c54e
SSDEEP 49152:eSBec0GPbErgBAmCke8D/MABBqVbKJ04TiSgviLoDbrBcp9:ecrzErgB+wM8IVmCiiLvxnrB
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\285414\\sysmon.exe\""	sysmon.exe

Executes dropped EXE 4 IoCs

pid	Process
2108	File.exe
2504	sysmon.exe
224	File.exe
4992	sysmon.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	sysmon.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\System Monitor = "\"C:\\ProgramData\\285414\\sysmon.exe\""	sysmon.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.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 3584 set thread context of 4928	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	83
PID 2504 set thread context of 4992	2504	sysmon.exe	88

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
File created	C:\Windows\assembly\Desktop.ini	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.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

pid	Process
3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
2504	sysmon.exe
2504	sysmon.exe
2504	sysmon.exe
2504	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
2108	File.exe
2108	File.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4928	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
4928	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe
4992	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4928	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
Token: 33	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
Token: SeIncBasePriorityPrivilege	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
Token: SeDebugPrivilege	2108	File.exe
Token: SeDebugPrivilege	2504	sysmon.exe
Token: 33	2504	sysmon.exe
Token: SeIncBasePriorityPrivilege	2504	sysmon.exe
Token: SeDebugPrivilege	224	File.exe
Token: SeDebugPrivilege	4992	sysmon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4992	sysmon.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 3584 wrote to memory of 2108	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	82
PID 3584 wrote to memory of 2108	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	82
PID 3584 wrote to memory of 2108	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	82
PID 3584 wrote to memory of 4928	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	83
PID 3584 wrote to memory of 4928	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	83
PID 3584 wrote to memory of 4928	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	83
PID 3584 wrote to memory of 4928	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	83
PID 3584 wrote to memory of 4928	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	83
PID 3584 wrote to memory of 4928	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	83
PID 3584 wrote to memory of 4928	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	83
PID 3584 wrote to memory of 4928	3584	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	83
PID 4928 wrote to memory of 2504	4928	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	86
PID 4928 wrote to memory of 2504	4928	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	86
PID 4928 wrote to memory of 2504	4928	15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe	86
PID 2504 wrote to memory of 224	2504	sysmon.exe	87
PID 2504 wrote to memory of 224	2504	sysmon.exe	87
PID 2504 wrote to memory of 224	2504	sysmon.exe	87
PID 2504 wrote to memory of 4992	2504	sysmon.exe	88
PID 2504 wrote to memory of 4992	2504	sysmon.exe	88
PID 2504 wrote to memory of 4992	2504	sysmon.exe	88
PID 2504 wrote to memory of 4992	2504	sysmon.exe	88
PID 2504 wrote to memory of 4992	2504	sysmon.exe	88
PID 2504 wrote to memory of 4992	2504	sysmon.exe	88
PID 2504 wrote to memory of 4992	2504	sysmon.exe	88
PID 2504 wrote to memory of 4992	2504	sysmon.exe	88
PID 4992 wrote to memory of 2108	4992	sysmon.exe	82
PID 4992 wrote to memory of 2108	4992	sysmon.exe	82
PID 4992 wrote to memory of 2108	4992	sysmon.exe	82
PID 4992 wrote to memory of 2108	4992	sysmon.exe	82
PID 4992 wrote to memory of 2108	4992	sysmon.exe	82
PID 4992 wrote to memory of 4928	4992	sysmon.exe	83
PID 4992 wrote to memory of 4928	4992	sysmon.exe	83
PID 4992 wrote to memory of 4928	4992	sysmon.exe	83
PID 4992 wrote to memory of 4928	4992	sysmon.exe	83
PID 4992 wrote to memory of 4928	4992	sysmon.exe	83

C:\Users\Admin\AppData\Local\Temp\15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
"C:\Users\Admin\AppData\Local\Temp\15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3584
- C:\Users\Admin\AppData\Local\Temp\File.exe
  "C:\Users\Admin\AppData\Local\Temp\File.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2108
- C:\Users\Admin\AppData\Local\Temp\15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
  C:\Users\Admin\AppData\Local\Temp\15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:4928
- - C:\ProgramData\285414\sysmon.exe
    "C:\ProgramData\285414\sysmon.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2504
  - - C:\Users\Admin\AppData\Local\Temp\File.exe
      "C:\Users\Admin\AppData\Local\Temp\File.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:224
  - - C:\ProgramData\285414\sysmon.exe
      C:\ProgramData\285414\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:4992

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

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Downloads

sysmon.exe

Path C:\ProgramData\285414\sysmon.exe
Size 2.7MB
SHA256 15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029
MD5 c8cf5b4e0b41f78a0578afd13d721fd1
SHA1 3c5fea380843bff19cf435322ec7a8a62d1ec3d4
SHA512 f4bf2b8452a253aa45f64c6d05d3c7a1e8ec744a322892e1f03710129e43fa63f0064023341d37dd308be45c9385d50863d2b21461f82e94ba0e67526708c54e
SSDEEP 49152:eSBec0GPbErgBAmCke8D/MABBqVbKJ04TiSgviLoDbrBcp9:ecrzErgB+wM8IVmCiiLvxnrB
MD5 SHA1 SHA512 SSDEEP

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sysmon.exe

Path C:\ProgramData\285414\sysmon.exe
Size 2.7MB
SHA256 15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029
MD5 c8cf5b4e0b41f78a0578afd13d721fd1
SHA1 3c5fea380843bff19cf435322ec7a8a62d1ec3d4
SHA512 f4bf2b8452a253aa45f64c6d05d3c7a1e8ec744a322892e1f03710129e43fa63f0064023341d37dd308be45c9385d50863d2b21461f82e94ba0e67526708c54e
SSDEEP 49152:eSBec0GPbErgBAmCke8D/MABBqVbKJ04TiSgviLoDbrBcp9:ecrzErgB+wM8IVmCiiLvxnrB
MD5 SHA1 SHA512 SSDEEP

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sysmon.exe

Path C:\ProgramData\285414\sysmon.exe
Size 2.7MB
SHA256 15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029
MD5 c8cf5b4e0b41f78a0578afd13d721fd1
SHA1 3c5fea380843bff19cf435322ec7a8a62d1ec3d4
SHA512 f4bf2b8452a253aa45f64c6d05d3c7a1e8ec744a322892e1f03710129e43fa63f0064023341d37dd308be45c9385d50863d2b21461f82e94ba0e67526708c54e
SSDEEP 49152:eSBec0GPbErgBAmCke8D/MABBqVbKJ04TiSgviLoDbrBcp9:ecrzErgB+wM8IVmCiiLvxnrB
MD5 SHA1 SHA512 SSDEEP

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15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\15843008b449ada1a722b2ea3ea46d3180d95995d8055181d884840f3ea7d029.exe.log
Size 319B
SHA256 d182dd648c92e41cd62dccc65f130c07f0a96c03b32f907c3d1218e9aa5bda03
MD5 824ba7b7eed8b900a98dd25129c4cd83
SHA1 54478770b2158000ef365591d42977cb854453a1
SHA512 ae4f3a9673711ecb6cc5d06874c587341d5094803923b53b6e982278fa64549d7acf866de165e23750facd55da556b6794c0d32f129f4087529c73acd4ffb11e
MD5 SHA1 SHA512

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File.exe

Path C:\Users\Admin\AppData\Local\Temp\File.exe
Size 787KB
SHA256 8f9af964f56025b65831a1d2b9b66475423cee2e255ef6bd240955685c92bfbc
MD5 67f9e88c73d954bc23235a1d00bd2d2a
SHA1 0990308a9ebb602900e8a77615906d5b669792eb
SHA512 a3a4df2d6972c057b6da54fd18ac803368aa98a7e1e07e859d3c36585040f300537a27e508924f2a212a87119e2219031277a015c7e9db70ac0935778d58bf92
SSDEEP 12288:ptWpu+NuHhseTR1zz+2MUSG9yRCiedX/JkybVZfiQ5M97GJrEbj:t+oHyeV4FUSG9mCiedPJ1pZfieM4F0j
MD5 SHA1 SHA512 SSDEEP

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File.exe

Path C:\Users\Admin\AppData\Local\Temp\File.exe
Size 787KB
SHA256 8f9af964f56025b65831a1d2b9b66475423cee2e255ef6bd240955685c92bfbc
MD5 67f9e88c73d954bc23235a1d00bd2d2a
SHA1 0990308a9ebb602900e8a77615906d5b669792eb
SHA512 a3a4df2d6972c057b6da54fd18ac803368aa98a7e1e07e859d3c36585040f300537a27e508924f2a212a87119e2219031277a015c7e9db70ac0935778d58bf92
SSDEEP 12288:ptWpu+NuHhseTR1zz+2MUSG9yRCiedX/JkybVZfiQ5M97GJrEbj:t+oHyeV4FUSG9mCiedPJ1pZfieM4F0j
MD5 SHA1 SHA512 SSDEEP

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File.exe

Path C:\Users\Admin\AppData\Local\Temp\File.exe
Size 787KB
SHA256 8f9af964f56025b65831a1d2b9b66475423cee2e255ef6bd240955685c92bfbc
MD5 67f9e88c73d954bc23235a1d00bd2d2a
SHA1 0990308a9ebb602900e8a77615906d5b669792eb
SHA512 a3a4df2d6972c057b6da54fd18ac803368aa98a7e1e07e859d3c36585040f300537a27e508924f2a212a87119e2219031277a015c7e9db70ac0935778d58bf92
SSDEEP 12288:ptWpu+NuHhseTR1zz+2MUSG9yRCiedX/JkybVZfiQ5M97GJrEbj:t+oHyeV4FUSG9mCiedPJ1pZfieM4F0j
MD5 SHA1 SHA512 SSDEEP

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svhost.exe

Path C:\Users\Admin\AppData\Local\Temp\svhost.exe
Size 52KB
SHA256 403752009f29381d5e4036b8be94589c89188f9ce8ef5f86959eaaada019ed36
MD5 a64daca3cfbcd039df3ec29d3eddd001
SHA1 eee8b2573f71e8d5c3ee7e53af3e6772e090d0f3
SHA512 b6fe2d0ae3fcd4442579ecf10d498d61e0f042813c8fc4be8019da77d849cfcf0b168507139a1b5697227c272de9091788f8e03cf1ce13d5b5077568cfa6a479
SSDEEP 768:YP2Bbv+VazyoD2z9TU//1mz1+M9GnLEu+2UAFRJS8fX:zJv46yoD2BTNz1+M9GLfTw8fX
MD5 SHA1 SHA512 SSDEEP

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memory/2108-139-0x0000000004BB0000-0x0000000004C4C000-memory.dmp

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memory/2108-141-0x0000000005460000-0x0000000005A04000-memory.dmp

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memory/2108-142-0x0000000004D00000-0x0000000004D92000-memory.dmp

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memory/2108-143-0x0000000004CE0000-0x0000000004CEA000-memory.dmp

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memory/2108-144-0x0000000004F10000-0x0000000004F66000-memory.dmp

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memory/2108-138-0x0000000000180000-0x000000000024C000-memory.dmp

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memory/2504-157-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/2504-148-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/3584-155-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/3584-132-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/4928-160-0x0000000006EF0000-0x0000000006F07000-memory.dmp

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memory/4928-140-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/4928-164-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/4928-137-0x0000000000400000-0x000000000043E000-memory.dmp

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memory/4928-158-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/4928-161-0x0000000006EF0000-0x0000000006F07000-memory.dmp

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memory/4928-162-0x0000000006EF0000-0x0000000006F07000-memory.dmp

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memory/4992-156-0x00000000749C0000-0x0000000074F71000-memory.dmp

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memory/4992-159-0x00000000749C0000-0x0000000074F71000-memory.dmp

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