luminosity | 7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 17:12

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General

Target

7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe
Size

403KB
MD5

12fab52166ca74beb58288c2beda1e86
SHA1

a84deca4453e5bd58b1cb23978d3f05a6d50fbdc
SHA256

7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081
SHA512

f4fb20486267185fafd6f5645b57b6997b4d19d6c5db41c957d2d419d1884d3b40137307d16c62ce24103434419441216feeb81fee722c65b418f27f7bf489ad
SSDEEP

6144:pXHB+V+i2eEGsklGFixqA/A3KEJMBpnjB85+vWeUOvsDpOX5aGBDic6:1miGXbx3/SMISOiB+7

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 1 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

Executes dropped EXE 2 IoCs

pid	Process
5068	sysmon.exe
1188	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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.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\\105698\\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 5100 set thread context of 3208	5100	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	83
PID 5068 set thread context of 1188	5068	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
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
3208	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe
3208	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe
1188	sysmon.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3208	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1188	sysmon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1188	sysmon.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 3208	5100	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	83
PID 5100 wrote to memory of 3208	5100	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	83
PID 5100 wrote to memory of 3208	5100	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	83
PID 5100 wrote to memory of 3208	5100	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	83
PID 5100 wrote to memory of 3208	5100	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	83
PID 5100 wrote to memory of 3208	5100	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	83
PID 5100 wrote to memory of 3208	5100	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	83
PID 5100 wrote to memory of 3208	5100	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	83
PID 3208 wrote to memory of 5068	3208	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	84
PID 3208 wrote to memory of 5068	3208	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	84
PID 3208 wrote to memory of 5068	3208	7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe	84
PID 5068 wrote to memory of 1188	5068	sysmon.exe	85
PID 5068 wrote to memory of 1188	5068	sysmon.exe	85
PID 5068 wrote to memory of 1188	5068	sysmon.exe	85
PID 5068 wrote to memory of 1188	5068	sysmon.exe	85
PID 5068 wrote to memory of 1188	5068	sysmon.exe	85
PID 5068 wrote to memory of 1188	5068	sysmon.exe	85
PID 5068 wrote to memory of 1188	5068	sysmon.exe	85
PID 5068 wrote to memory of 1188	5068	sysmon.exe	85
PID 1188 wrote to memory of 3208	1188	sysmon.exe	83
PID 1188 wrote to memory of 3208	1188	sysmon.exe	83
PID 1188 wrote to memory of 3208	1188	sysmon.exe	83
PID 1188 wrote to memory of 3208	1188	sysmon.exe	83
PID 1188 wrote to memory of 3208	1188	sysmon.exe	83

C:\Users\Admin\AppData\Local\Temp\7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe
"C:\Users\Admin\AppData\Local\Temp\7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5100
- C:\Users\Admin\AppData\Local\Temp\7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe
  "C:\Users\Admin\AppData\Local\Temp\7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:3208
- - C:\ProgramData\105698\sysmon.exe
    "C:\ProgramData\105698\sysmon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:5068
  - - C:\ProgramData\105698\sysmon.exe
      "C:\ProgramData\105698\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:1188

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\105698\sysmon.exe

Filesize
403KB

MD5
12fab52166ca74beb58288c2beda1e86

SHA1
a84deca4453e5bd58b1cb23978d3f05a6d50fbdc

SHA256
7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081

SHA512
f4fb20486267185fafd6f5645b57b6997b4d19d6c5db41c957d2d419d1884d3b40137307d16c62ce24103434419441216feeb81fee722c65b418f27f7bf489ad

Download Submit
C:\ProgramData\105698\sysmon.exe

Filesize
403KB

MD5
12fab52166ca74beb58288c2beda1e86

SHA1
a84deca4453e5bd58b1cb23978d3f05a6d50fbdc

SHA256
7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081

SHA512
f4fb20486267185fafd6f5645b57b6997b4d19d6c5db41c957d2d419d1884d3b40137307d16c62ce24103434419441216feeb81fee722c65b418f27f7bf489ad

Download Submit
C:\ProgramData\105698\sysmon.exe

Filesize
403KB

MD5
12fab52166ca74beb58288c2beda1e86

SHA1
a84deca4453e5bd58b1cb23978d3f05a6d50fbdc

SHA256
7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081

SHA512
f4fb20486267185fafd6f5645b57b6997b4d19d6c5db41c957d2d419d1884d3b40137307d16c62ce24103434419441216feeb81fee722c65b418f27f7bf489ad

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\7da9245a700f6545d3ecf786f990fff2396fed1cc5f73621f2b63599ca145081.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/1188-153-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/1188-155-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/3208-140-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/3208-157-0x0000000007230000-0x0000000007247000-memory.dmp

Filesize
92KB

Download
memory/3208-134-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/3208-158-0x0000000007230000-0x0000000007247000-memory.dmp

Filesize
92KB

Download
memory/3208-136-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/3208-156-0x0000000007230000-0x0000000007247000-memory.dmp

Filesize
92KB

Download
memory/3208-159-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/3208-154-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/5068-144-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/5068-152-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/5100-132-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/5100-139-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download