2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d

General

Target

2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d.exe
Size

98KB
MD5

c47084affdc6747ac556343024a6148d
SHA1

90ac3dbc690723e92f77baf14db5e5729f794852
SHA256

2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d
SHA512

f1002e26f84e7d3f53966772478e9bd3792b36ac6d631e04e4ef9fe58b040fd566f88f107aac5477c9c0c7d5e5d30a35e164fc988c2fcd5b94ad5e8e4f0720fa
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:

6ty6D26.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\twext.exe,"	6ty6D26.exe

Executes dropped EXE 2 IoCs

Processes:

6ty6D26.exe6ty6D26.exe

pid process

4760 6ty6D26.exe
836 6ty6D26.exe

pid	process
4760	6ty6D26.exe
836	6ty6D26.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:

2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d.exe

Drops file in System32 directory 2 IoCs

Processes:

6ty6D26.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\twext.exe 6ty6D26.exe
File created C:\Windows\SysWOW64\twext.exe 6ty6D26.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

6ty6D26.exe

description pid process target process

PID 4760 set thread context of 836 4760 6ty6D26.exe 6ty6D26.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:

6ty6D26.exe

pid process

836 6ty6D26.exe
836 6ty6D26.exe
836 6ty6D26.exe
836 6ty6D26.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

6ty6D26.exe

description pid process

Token: SeDebugPrivilege 836 6ty6D26.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

6ty6D26.exe

pid process

4760 6ty6D26.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\twext.exe	6ty6D26.exe
File created	C:\Windows\SysWOW64\twext.exe	6ty6D26.exe

description	pid	process	target process
PID 4760 set thread context of 836	4760	6ty6D26.exe	6ty6D26.exe

pid	process
836	6ty6D26.exe
836	6ty6D26.exe
836	6ty6D26.exe
836	6ty6D26.exe

description	pid	process
Token: SeDebugPrivilege	836	6ty6D26.exe

pid	process
4760	6ty6D26.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d.exe6ty6D26.exe6ty6D26.exe

description	pid	process	target process
PID 2592 wrote to memory of 4760	2592	2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d.exe	6ty6D26.exe
PID 2592 wrote to memory of 4760	2592	2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d.exe	6ty6D26.exe
PID 2592 wrote to memory of 4760	2592	2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d.exe	6ty6D26.exe
PID 4760 wrote to memory of 836	4760	6ty6D26.exe	6ty6D26.exe
PID 4760 wrote to memory of 836	4760	6ty6D26.exe	6ty6D26.exe
PID 4760 wrote to memory of 836	4760	6ty6D26.exe	6ty6D26.exe
PID 4760 wrote to memory of 836	4760	6ty6D26.exe	6ty6D26.exe
PID 4760 wrote to memory of 836	4760	6ty6D26.exe	6ty6D26.exe
PID 4760 wrote to memory of 836	4760	6ty6D26.exe	6ty6D26.exe
PID 4760 wrote to memory of 836	4760	6ty6D26.exe	6ty6D26.exe
PID 4760 wrote to memory of 836	4760	6ty6D26.exe	6ty6D26.exe
PID 4760 wrote to memory of 836	4760	6ty6D26.exe	6ty6D26.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe
PID 836 wrote to memory of 620	836	6ty6D26.exe	winlogon.exe

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:620

C:\Users\Admin\AppData\Local\Temp\2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d.exe
"C:\Users\Admin\AppData\Local\Temp\2d31b641508b195873f092d1dc4ae00b4660882549f0a2e484c863495845039d.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2592

C:\Users\Admin\AppData\Local\Temp\6ty6D26.exe
"C:\Users\Admin\AppData\Local\Temp\6ty6D26.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4760

C:\Users\Admin\AppData\Local\Temp\6ty6D26.exe
"C:\Users\Admin\AppData\Local\Temp\6ty6D26.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:836

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\6ty6D26.exe
Filesize
74KB

MD5
5b1a85d948bd7a075ebd0df2296ae9d5

SHA1
2b7cab4c68ca6c0fa28b360f9eb4673e7b075a24

SHA256
8cfb09392dd6cf7042c9aa9c98fbc9ef5969441d9cbf9d142fd5cbb9d70cd121

SHA512
46f05ba3117297faab0a7279d0791fd2e1daebcf9dbcbffaa17c2ee34ac3a68b4b8a40d4d73431a9da7e4a4c293aaf7a9f4bde2d4c93aa4f883c57fb6b2c0575

Download Submit
C:\Users\Admin\AppData\Local\Temp\6ty6D26.exe
Filesize
74KB

MD5
5b1a85d948bd7a075ebd0df2296ae9d5

SHA1
2b7cab4c68ca6c0fa28b360f9eb4673e7b075a24

SHA256
8cfb09392dd6cf7042c9aa9c98fbc9ef5969441d9cbf9d142fd5cbb9d70cd121

SHA512
46f05ba3117297faab0a7279d0791fd2e1daebcf9dbcbffaa17c2ee34ac3a68b4b8a40d4d73431a9da7e4a4c293aaf7a9f4bde2d4c93aa4f883c57fb6b2c0575

Download Submit
C:\Users\Admin\AppData\Local\Temp\6ty6D26.exe
Filesize
74KB

MD5
5b1a85d948bd7a075ebd0df2296ae9d5

SHA1
2b7cab4c68ca6c0fa28b360f9eb4673e7b075a24

SHA256
8cfb09392dd6cf7042c9aa9c98fbc9ef5969441d9cbf9d142fd5cbb9d70cd121

SHA512
46f05ba3117297faab0a7279d0791fd2e1daebcf9dbcbffaa17c2ee34ac3a68b4b8a40d4d73431a9da7e4a4c293aaf7a9f4bde2d4c93aa4f883c57fb6b2c0575

Download Submit
memory/620-197-0x000000000E680000-0x000000000E6A6000-memory.dmp

Filesize
152KB

Download
memory/620-202-0x000000000E6B0000-0x000000000E6D6000-memory.dmp

Filesize
152KB

Download
memory/620-242-0x000000000E830000-0x000000000E856000-memory.dmp

Filesize
152KB

Download
memory/620-237-0x000000000E800000-0x000000000E826000-memory.dmp

Filesize
152KB

Download
memory/620-232-0x000000000E7D0000-0x000000000E7F6000-memory.dmp

Filesize
152KB

Download
memory/620-227-0x000000000E7A0000-0x000000000E7C6000-memory.dmp

Filesize
152KB

Download
memory/620-222-0x000000000E770000-0x000000000E796000-memory.dmp

Filesize
152KB

Download
memory/620-217-0x000000000E740000-0x000000000E766000-memory.dmp

Filesize
152KB

Download
memory/620-212-0x000000000E710000-0x000000000E736000-memory.dmp

Filesize
152KB

Download
memory/620-152-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/620-157-0x000000000E500000-0x000000000E526000-memory.dmp

Filesize
152KB

Download
memory/620-162-0x000000000E530000-0x000000000E556000-memory.dmp

Filesize
152KB

Download
memory/620-167-0x000000000E560000-0x000000000E586000-memory.dmp

Filesize
152KB

Download
memory/620-172-0x000000000E590000-0x000000000E5B6000-memory.dmp

Filesize
152KB

Download
memory/620-177-0x000000000E5C0000-0x000000000E5E6000-memory.dmp

Filesize
152KB

Download
memory/620-182-0x000000000E5F0000-0x000000000E616000-memory.dmp

Filesize
152KB

Download
memory/620-187-0x000000000E620000-0x000000000E646000-memory.dmp

Filesize
152KB

Download
memory/620-192-0x000000000E650000-0x000000000E676000-memory.dmp

Filesize
152KB

Download
memory/620-207-0x000000000E6E0000-0x000000000E706000-memory.dmp

Filesize
152KB

Download
memory/836-139-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/836-147-0x0000000000410000-0x0000000000412000-memory.dmp

Filesize
8KB

Download
memory/836-145-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/836-144-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/836-137-0x0000000000000000-mapping.dmp

Download
memory/836-141-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/836-140-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/836-138-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4760-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads