25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a

General

Target

25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe
Size

116KB
MD5

7fdf1177ae26859ce367d4cd76a712d1
SHA1

3410dbe2e502ccd791b05bb919bc2814d1275bca
SHA256

25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a
SHA512

a4ea6c2dcc05e72ec62b4c8c98b9560e1608e447cb36cb7e6a15cf7a36044bae3cbaea6f7daac56ee8f757e1e08c98ccc8f5fb9fb7d6431f38d2c3c7c361a88c
SSDEEP

3072:gtuA/sk2uoYzVzSeQ7fFcO73V+cQhkv3NhF:gtTogSztD738cQhQ9hF

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

SdTr.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = ",C:\\Users\\Admin\\AppData\\Roaming\\SdTr.exe"	SdTr.exe

Executes dropped EXE 2 IoCs

Processes:

SdTr.exeSdTr.exe

pid process

2364 SdTr.exe
4548 SdTr.exe

pid	process
2364	SdTr.exe
4548	SdTr.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:

25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SdTr.exe

description pid process target process

PID 2364 set thread context of 4548 2364 SdTr.exe SdTr.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4104 4548 WerFault.exe SdTr.exe
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

pid process

668
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exeSdTr.exe

pid process

2224 25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe
2364 SdTr.exe

description	pid	process	target process
PID 2364 set thread context of 4548	2364	SdTr.exe	SdTr.exe

pid	pid_target	process	target process
4104	4548	WerFault.exe	SdTr.exe

pid	process
668

pid	process
2224	25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe
2364	SdTr.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exeSdTr.exe

description	pid	process	target process
PID 2224 wrote to memory of 2364	2224	25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe	SdTr.exe
PID 2224 wrote to memory of 2364	2224	25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe	SdTr.exe
PID 2224 wrote to memory of 2364	2224	25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe
PID 2364 wrote to memory of 4548	2364	SdTr.exe	SdTr.exe

C:\Users\Admin\AppData\Local\Temp\25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe
"C:\Users\Admin\AppData\Local\Temp\25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2224

C:\Users\Admin\AppData\Roaming\SdTr.exe
"C:\Users\Admin\AppData\Roaming\SdTr.exe"
2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2364

C:\Users\Admin\AppData\Roaming\SdTr.exe
"C:\Users\Admin\AppData\Roaming\SdTr.exe"
3⤵
- Executes dropped EXE
PID:4548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 352
4⤵
- Program crash
PID:4104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4548 -ip 4548
1⤵
PID:3840

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

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Downloads

C:\Users\Admin\AppData\Roaming\SdTr.exe

Filesize
116KB

MD5
7fdf1177ae26859ce367d4cd76a712d1

SHA1
3410dbe2e502ccd791b05bb919bc2814d1275bca

SHA256
25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a

SHA512
a4ea6c2dcc05e72ec62b4c8c98b9560e1608e447cb36cb7e6a15cf7a36044bae3cbaea6f7daac56ee8f757e1e08c98ccc8f5fb9fb7d6431f38d2c3c7c361a88c

Download Submit
C:\Users\Admin\AppData\Roaming\SdTr.exe

Filesize
116KB

MD5
7fdf1177ae26859ce367d4cd76a712d1

SHA1
3410dbe2e502ccd791b05bb919bc2814d1275bca

SHA256
25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a

SHA512
a4ea6c2dcc05e72ec62b4c8c98b9560e1608e447cb36cb7e6a15cf7a36044bae3cbaea6f7daac56ee8f757e1e08c98ccc8f5fb9fb7d6431f38d2c3c7c361a88c

Download Submit
C:\Users\Admin\AppData\Roaming\SdTr.exe

Filesize
116KB

MD5
7fdf1177ae26859ce367d4cd76a712d1

SHA1
3410dbe2e502ccd791b05bb919bc2814d1275bca

SHA256
25235495fd6c467c26f70e23514035d884fa169cb7a0a4d60548364f7718aa8a

SHA512
a4ea6c2dcc05e72ec62b4c8c98b9560e1608e447cb36cb7e6a15cf7a36044bae3cbaea6f7daac56ee8f757e1e08c98ccc8f5fb9fb7d6431f38d2c3c7c361a88c

Download Submit
memory/2364-134-0x0000000000000000-mapping.dmp

Download
memory/4548-139-0x0000000000000000-mapping.dmp

Download
memory/4548-140-0x0000000000400000-0x00000000009CA000-memory.dmp

Filesize
5.8MB

Download
memory/4548-142-0x0000000000400000-0x00000000009CA000-memory.dmp

Filesize
5.8MB

Download
memory/4548-143-0x0000000000400000-0x00000000009CA000-memory.dmp

Filesize
5.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads