4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9

General

Target

4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9.exe
Size

101KB
MD5

d48e3c2058035bc083d90bb7685fe09f
SHA1

bd14f31338cacf23586c65d7ce35fe3fe7f5968a
SHA256

4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9
SHA512

185fe4121a0c78bc21e3fe57f03b3bfd11d47ab4a86475015633668294bb4eb4a8beb9c89839e2b75433d4f327bcfe94596e89989fee442064a6d3bad783aef8
SSDEEP

1536:9QxqcQu0XPmEmEcYUpEjCTfaAIW1EvqTlrxtPpFAXF9N/6Sy:y/03mEcppEjCTfaAIWSqTlrbPLEz4

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

6ty31D.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\twext.exe,"	6ty31D.exe

Executes dropped EXE 2 IoCs

Processes:

6ty31D.exe6ty31D.exe

pid process

4972 6ty31D.exe
4712 6ty31D.exe

pid	process
4972	6ty31D.exe
4712	6ty31D.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:

4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9.exe

Drops file in System32 directory 2 IoCs

Processes:

6ty31D.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\twext.exe 6ty31D.exe
File created C:\Windows\SysWOW64\twext.exe 6ty31D.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

6ty31D.exe

description pid process target process

PID 4972 set thread context of 4712 4972 6ty31D.exe 6ty31D.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 4 IoCs

Processes:

6ty31D.exe

pid process

4712 6ty31D.exe
4712 6ty31D.exe
4712 6ty31D.exe
4712 6ty31D.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

6ty31D.exe

description pid process

Token: SeDebugPrivilege 4712 6ty31D.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

6ty31D.exe

pid process

4972 6ty31D.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\twext.exe	6ty31D.exe
File created	C:\Windows\SysWOW64\twext.exe	6ty31D.exe

description	pid	process	target process
PID 4972 set thread context of 4712	4972	6ty31D.exe	6ty31D.exe

pid	process
4712	6ty31D.exe
4712	6ty31D.exe
4712	6ty31D.exe
4712	6ty31D.exe

description	pid	process
Token: SeDebugPrivilege	4712	6ty31D.exe

pid	process
4972	6ty31D.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9.exe6ty31D.exe6ty31D.exe

description	pid	process	target process
PID 2076 wrote to memory of 4972	2076	4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9.exe	6ty31D.exe
PID 2076 wrote to memory of 4972	2076	4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9.exe	6ty31D.exe
PID 2076 wrote to memory of 4972	2076	4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9.exe	6ty31D.exe
PID 4972 wrote to memory of 4712	4972	6ty31D.exe	6ty31D.exe
PID 4972 wrote to memory of 4712	4972	6ty31D.exe	6ty31D.exe
PID 4972 wrote to memory of 4712	4972	6ty31D.exe	6ty31D.exe
PID 4972 wrote to memory of 4712	4972	6ty31D.exe	6ty31D.exe
PID 4972 wrote to memory of 4712	4972	6ty31D.exe	6ty31D.exe
PID 4972 wrote to memory of 4712	4972	6ty31D.exe	6ty31D.exe
PID 4972 wrote to memory of 4712	4972	6ty31D.exe	6ty31D.exe
PID 4972 wrote to memory of 4712	4972	6ty31D.exe	6ty31D.exe
PID 4972 wrote to memory of 4712	4972	6ty31D.exe	6ty31D.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe
PID 4712 wrote to memory of 580	4712	6ty31D.exe	winlogon.exe

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:580

C:\Users\Admin\AppData\Local\Temp\4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9.exe
"C:\Users\Admin\AppData\Local\Temp\4a1125f52eb460597d912fb581a078013e97c6d9515bcbf2f63a85603662b6c9.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2076

C:\Users\Admin\AppData\Local\Temp\6ty31D.exe
"C:\Users\Admin\AppData\Local\Temp\6ty31D.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4972

C:\Users\Admin\AppData\Local\Temp\6ty31D.exe
"C:\Users\Admin\AppData\Local\Temp\6ty31D.exe"
3⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4712

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\6ty31D.exe

Filesize
74KB

MD5
5b1a85d948bd7a075ebd0df2296ae9d5

SHA1
2b7cab4c68ca6c0fa28b360f9eb4673e7b075a24

SHA256
8cfb09392dd6cf7042c9aa9c98fbc9ef5969441d9cbf9d142fd5cbb9d70cd121

SHA512
46f05ba3117297faab0a7279d0791fd2e1daebcf9dbcbffaa17c2ee34ac3a68b4b8a40d4d73431a9da7e4a4c293aaf7a9f4bde2d4c93aa4f883c57fb6b2c0575

Download Submit
C:\Users\Admin\AppData\Local\Temp\6ty31D.exe

Filesize
74KB

MD5
5b1a85d948bd7a075ebd0df2296ae9d5

SHA1
2b7cab4c68ca6c0fa28b360f9eb4673e7b075a24

SHA256
8cfb09392dd6cf7042c9aa9c98fbc9ef5969441d9cbf9d142fd5cbb9d70cd121

SHA512
46f05ba3117297faab0a7279d0791fd2e1daebcf9dbcbffaa17c2ee34ac3a68b4b8a40d4d73431a9da7e4a4c293aaf7a9f4bde2d4c93aa4f883c57fb6b2c0575

Download Submit
C:\Users\Admin\AppData\Local\Temp\6ty31D.exe

Filesize
74KB

MD5
5b1a85d948bd7a075ebd0df2296ae9d5

SHA1
2b7cab4c68ca6c0fa28b360f9eb4673e7b075a24

SHA256
8cfb09392dd6cf7042c9aa9c98fbc9ef5969441d9cbf9d142fd5cbb9d70cd121

SHA512
46f05ba3117297faab0a7279d0791fd2e1daebcf9dbcbffaa17c2ee34ac3a68b4b8a40d4d73431a9da7e4a4c293aaf7a9f4bde2d4c93aa4f883c57fb6b2c0575

Download Submit
memory/580-160-0x000000003AF00000-0x000000003AF26000-memory.dmp

Filesize
152KB

Download
memory/580-205-0x000000003B0B0000-0x000000003B0D6000-memory.dmp

Filesize
152KB

Download
memory/580-165-0x000000003AF30000-0x000000003AF56000-memory.dmp

Filesize
152KB

Download
memory/580-170-0x000000003AF60000-0x000000003AF86000-memory.dmp

Filesize
152KB

Download
memory/580-240-0x000000003B200000-0x000000003B226000-memory.dmp

Filesize
152KB

Download
memory/580-235-0x000000003B1D0000-0x000000003B1F6000-memory.dmp

Filesize
152KB

Download
memory/580-230-0x000000003B1A0000-0x000000003B1C6000-memory.dmp

Filesize
152KB

Download
memory/580-225-0x000000003B170000-0x000000003B196000-memory.dmp

Filesize
152KB

Download
memory/580-220-0x000000003B140000-0x000000003B166000-memory.dmp

Filesize
152KB

Download
memory/580-215-0x000000003B110000-0x000000003B136000-memory.dmp

Filesize
152KB

Download
memory/580-210-0x000000003B0E0000-0x000000003B106000-memory.dmp

Filesize
152KB

Download
memory/580-175-0x000000003AF90000-0x000000003AFB6000-memory.dmp

Filesize
152KB

Download
memory/580-200-0x000000003B080000-0x000000003B0A6000-memory.dmp

Filesize
152KB

Download
memory/580-195-0x000000003B050000-0x000000003B076000-memory.dmp

Filesize
152KB

Download
memory/580-190-0x000000003B020000-0x000000003B046000-memory.dmp

Filesize
152KB

Download
memory/580-245-0x000000003B230000-0x000000003B256000-memory.dmp

Filesize
152KB

Download
memory/580-185-0x000000003AFF0000-0x000000003B016000-memory.dmp

Filesize
152KB

Download
memory/580-180-0x000000003AFC0000-0x000000003AFE6000-memory.dmp

Filesize
152KB

Download
memory/4712-148-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4712-139-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4712-150-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4712-149-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4712-137-0x0000000000000000-mapping.dmp

Download
memory/4712-147-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4712-144-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4712-146-0x0000000000410000-0x0000000000412000-memory.dmp

Filesize
8KB

Download
memory/4712-145-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4712-138-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4712-141-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4712-140-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4972-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads