luminosity | 48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b

General

Target

48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe
Size

365KB
MD5

3cabbb2c59f3342738849df67f6fda83
SHA1

63106d091a7bb4242fe82bbc062f22639bf915ef
SHA256

48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b
SHA512

b75defb8a04a00455d55b3d0d90a6bfac797d3f47e9b1ce816f9c6becdd941a35b68fbfc04b337fe3750083bf9e0f9a1bb8488b15ccfc3e624de76ac79f0e711
SSDEEP

6144:WXV+JnRQtCJmM+mKwYpzyAtmLbR9JWJWdlU3hJ272Ja2P4337MqjrEVGPjk7ngIk:eAROuRvEvla2P4brEyjk7ngYsP

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

Processes:

cmd.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	cmd.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\907525\\cmd.exe\""	cmd.exe

Executes dropped EXE 1 IoCs

Processes:

cmd.exe

pid process

3532 cmd.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

Processes:

48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Windows-Explorer = "\"C:\\ProgramData\\907525\\cmd.exe\""	cmd.exe

Drops file in System32 directory 2 IoCs

Processes:

cmd.exe

description ioc process

File created C:\Windows\SysWOW64\clientsvr.exe cmd.exe
File opened for modification C:\Windows\SysWOW64\clientsvr.exe cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File created	C:\Windows\SysWOW64\clientsvr.exe	cmd.exe
File opened for modification	C:\Windows\SysWOW64\clientsvr.exe	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

cmd.exe48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe

pid	process
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
4548	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe
4548	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe
3532	cmd.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe

pid process

4548 48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

cmd.exe

description pid process

Token: SeDebugPrivilege 3532 cmd.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

cmd.exe

pid process

3532 cmd.exe

pid	process
4548	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe

description	pid	process
Token: SeDebugPrivilege	3532	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.execmd.exe

description	pid	process	target process
PID 4548 wrote to memory of 3532	4548	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe	cmd.exe
PID 4548 wrote to memory of 3532	4548	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe	cmd.exe
PID 4548 wrote to memory of 3532	4548	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe	cmd.exe
PID 3532 wrote to memory of 4548	3532	cmd.exe	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe
PID 3532 wrote to memory of 4548	3532	cmd.exe	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe
PID 3532 wrote to memory of 4548	3532	cmd.exe	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe
PID 3532 wrote to memory of 4548	3532	cmd.exe	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe
PID 3532 wrote to memory of 4548	3532	cmd.exe	48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe

C:\Users\Admin\AppData\Local\Temp\48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe
"C:\Users\Admin\AppData\Local\Temp\48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4548
- C:\ProgramData\907525\cmd.exe
  "C:\ProgramData\907525\cmd.exe"
  2⤵
  - 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:3532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\907525\cmd.exe

Filesize
365KB

MD5
3cabbb2c59f3342738849df67f6fda83

SHA1
63106d091a7bb4242fe82bbc062f22639bf915ef

SHA256
48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b

SHA512
b75defb8a04a00455d55b3d0d90a6bfac797d3f47e9b1ce816f9c6becdd941a35b68fbfc04b337fe3750083bf9e0f9a1bb8488b15ccfc3e624de76ac79f0e711

Download Submit
C:\ProgramData\907525\cmd.exe

Filesize
365KB

MD5
3cabbb2c59f3342738849df67f6fda83

SHA1
63106d091a7bb4242fe82bbc062f22639bf915ef

SHA256
48e0d8ec788c1ded6e3b5aa3c794bf78964d4f88e37fe413cc31ee0b3fa2a70b

SHA512
b75defb8a04a00455d55b3d0d90a6bfac797d3f47e9b1ce816f9c6becdd941a35b68fbfc04b337fe3750083bf9e0f9a1bb8488b15ccfc3e624de76ac79f0e711

Download Submit
memory/3532-134-0x0000000000000000-mapping.dmp

Download
memory/3532-137-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/3532-138-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/4548-132-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/4548-133-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/4548-139-0x0000000006A80000-0x0000000006A97000-memory.dmp

Filesize
92KB

Download
memory/4548-140-0x0000000006A80000-0x0000000006A97000-memory.dmp

Filesize
92KB

Download
memory/4548-141-0x0000000006A80000-0x0000000006A97000-memory.dmp

Filesize
92KB

Download
memory/4548-142-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads