luminosity | 09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 22:14

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General

Target

09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe
Size

686KB
MD5

c133af251d114065265e9827b630239d
SHA1

e13b3859d3a136a21ae1284bb3db431e2adc5e86
SHA256

09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278
SHA512

39ceb34df4c300e5a924cbeb6af181d3f7c3ebe16f9c9569a4eeaf285ebcf7bf6ea50a20eb5b0da67096098f857702089b0103873e03f7bf580b4fbe0ab59b8e
SSDEEP

12288:CKTwwbIjoyUi2NKi2J0V+IpsLQbKwBYRa72QB+uTFzdcvux02S/JfVOCU5vI8Jog:ZvIKNCJY+IpsLYKwuRa72QB+uTFzdcvY

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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\557374\\sysmon.exe\""	sysmon.exe

Executes dropped EXE 3 IoCs

pid	Process
1276	sysmon.exe
3460	sysmon.exe
3128	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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.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\\557374\\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 4252 set thread context of 2404	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	82
PID 1276 set thread context of 3128	1276	sysmon.exe	85

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
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
2404	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe
2404	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe
3128	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2404	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3128	sysmon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3128	sysmon.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4252 wrote to memory of 4868	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	81
PID 4252 wrote to memory of 4868	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	81
PID 4252 wrote to memory of 4868	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	81
PID 4252 wrote to memory of 2404	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	82
PID 4252 wrote to memory of 2404	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	82
PID 4252 wrote to memory of 2404	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	82
PID 4252 wrote to memory of 2404	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	82
PID 4252 wrote to memory of 2404	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	82
PID 4252 wrote to memory of 2404	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	82
PID 4252 wrote to memory of 2404	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	82
PID 4252 wrote to memory of 2404	4252	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	82
PID 2404 wrote to memory of 1276	2404	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	83
PID 2404 wrote to memory of 1276	2404	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	83
PID 2404 wrote to memory of 1276	2404	09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe	83
PID 1276 wrote to memory of 3460	1276	sysmon.exe	84
PID 1276 wrote to memory of 3460	1276	sysmon.exe	84
PID 1276 wrote to memory of 3460	1276	sysmon.exe	84
PID 1276 wrote to memory of 3128	1276	sysmon.exe	85
PID 1276 wrote to memory of 3128	1276	sysmon.exe	85
PID 1276 wrote to memory of 3128	1276	sysmon.exe	85
PID 1276 wrote to memory of 3128	1276	sysmon.exe	85
PID 1276 wrote to memory of 3128	1276	sysmon.exe	85
PID 1276 wrote to memory of 3128	1276	sysmon.exe	85
PID 1276 wrote to memory of 3128	1276	sysmon.exe	85
PID 1276 wrote to memory of 3128	1276	sysmon.exe	85
PID 3128 wrote to memory of 2404	3128	sysmon.exe	82
PID 3128 wrote to memory of 2404	3128	sysmon.exe	82
PID 3128 wrote to memory of 2404	3128	sysmon.exe	82
PID 3128 wrote to memory of 2404	3128	sysmon.exe	82
PID 3128 wrote to memory of 2404	3128	sysmon.exe	82

C:\Users\Admin\AppData\Local\Temp\09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe
"C:\Users\Admin\AppData\Local\Temp\09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4252
- C:\Users\Admin\AppData\Local\Temp\09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe
  "C:\Users\Admin\AppData\Local\Temp\09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe"
  2⤵
  PID:4868
- C:\Users\Admin\AppData\Local\Temp\09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe
  "C:\Users\Admin\AppData\Local\Temp\09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\ProgramData\557374\sysmon.exe
    "C:\ProgramData\557374\sysmon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1276
  - - C:\ProgramData\557374\sysmon.exe
      "C:\ProgramData\557374\sysmon.exe"
      4⤵
      Executes dropped EXE
      PID:3460
  - - C:\ProgramData\557374\sysmon.exe
      "C:\ProgramData\557374\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:3128

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

C:\ProgramData\557374\sysmon.exe

Filesize
686KB

MD5
c133af251d114065265e9827b630239d

SHA1
e13b3859d3a136a21ae1284bb3db431e2adc5e86

SHA256
09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278

SHA512
39ceb34df4c300e5a924cbeb6af181d3f7c3ebe16f9c9569a4eeaf285ebcf7bf6ea50a20eb5b0da67096098f857702089b0103873e03f7bf580b4fbe0ab59b8e

Download Submit
C:\ProgramData\557374\sysmon.exe

Filesize
686KB

MD5
c133af251d114065265e9827b630239d

SHA1
e13b3859d3a136a21ae1284bb3db431e2adc5e86

SHA256
09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278

SHA512
39ceb34df4c300e5a924cbeb6af181d3f7c3ebe16f9c9569a4eeaf285ebcf7bf6ea50a20eb5b0da67096098f857702089b0103873e03f7bf580b4fbe0ab59b8e

Download Submit
C:\ProgramData\557374\sysmon.exe

Filesize
686KB

MD5
c133af251d114065265e9827b630239d

SHA1
e13b3859d3a136a21ae1284bb3db431e2adc5e86

SHA256
09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278

SHA512
39ceb34df4c300e5a924cbeb6af181d3f7c3ebe16f9c9569a4eeaf285ebcf7bf6ea50a20eb5b0da67096098f857702089b0103873e03f7bf580b4fbe0ab59b8e

Download Submit
C:\ProgramData\557374\sysmon.exe

Filesize
686KB

MD5
c133af251d114065265e9827b630239d

SHA1
e13b3859d3a136a21ae1284bb3db431e2adc5e86

SHA256
09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278

SHA512
39ceb34df4c300e5a924cbeb6af181d3f7c3ebe16f9c9569a4eeaf285ebcf7bf6ea50a20eb5b0da67096098f857702089b0103873e03f7bf580b4fbe0ab59b8e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\09c8b67a5b156e19ab658b1342cfed35eaad3d897920369292dd6e8635fe3278.exe.log

Filesize
223B

MD5
1cc4c5b51e50ec74a6880b50ecbee28b

SHA1
1ba7bb0e86c3d23fb0dc8bf16798d37afb4c4aba

SHA256
0556734df26e82e363d47748a3ceedd5c23ea4b9ded6e68bd5c373c1c9f8777b

SHA512
5d5532602b381125b24a9bd78781ed722ce0c862214ef17e7d224d269e6e7045c919ab19896dd8d9ae8920726092efe0ffb776a77a9a9539c4a70188d5a4c706

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

Filesize
223B

MD5
1cc4c5b51e50ec74a6880b50ecbee28b

SHA1
1ba7bb0e86c3d23fb0dc8bf16798d37afb4c4aba

SHA256
0556734df26e82e363d47748a3ceedd5c23ea4b9ded6e68bd5c373c1c9f8777b

SHA512
5d5532602b381125b24a9bd78781ed722ce0c862214ef17e7d224d269e6e7045c919ab19896dd8d9ae8920726092efe0ffb776a77a9a9539c4a70188d5a4c706

Download Submit
memory/1276-153-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/1276-144-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/2404-157-0x00000000070D0000-0x00000000070E7000-memory.dmp

Filesize
92KB

Download
memory/2404-140-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/2404-136-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2404-160-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/2404-134-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2404-158-0x00000000070D0000-0x00000000070E7000-memory.dmp

Filesize
92KB

Download
memory/2404-156-0x00000000070D0000-0x00000000070E7000-memory.dmp

Filesize
92KB

Download
memory/2404-155-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/3128-154-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/3128-159-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/4252-139-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/4252-132-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download