tofsee | 8bd75372f704a8b6eebf3187b250c7a1bd885760d47b9191a4603b08645dc59b

General

Target

2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe
Size

11.7MB
MD5

b0fd4e430712651728eeef94f1698a34
SHA1

e7dc567b45b5aec4a0bf1e9b3377a12ce7456c43
SHA256

8bd75372f704a8b6eebf3187b250c7a1bd885760d47b9191a4603b08645dc59b
SHA512

695dd9016b2c2e7d092f23489988c7ae06986fd6423abd4314c2048754b22ee9fc830560e461d25cb61f4708f98d1d6f19322ea74b529eb849b2e223273ee314
SSDEEP

24576:06WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQp:ZWdLQkH

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1840	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\scrmdagl\ImagePath = "C:\\Windows\\SysWOW64\\scrmdagl\\pnwxgcrn.exe"	svchost.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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe

Deletes itself 1 IoCs

pid	Process
2728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4944	pnwxgcrn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4944 set thread context of 2728	4944	pnwxgcrn.exe	102

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4844	sc.exe
2512	sc.exe
4868	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3640	1808	WerFault.exe	82
3916	4944	WerFault.exe	96

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pnwxgcrn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 4028	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	86
PID 1808 wrote to memory of 4028	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	86
PID 1808 wrote to memory of 4028	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	86
PID 1808 wrote to memory of 1628	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	88
PID 1808 wrote to memory of 1628	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	88
PID 1808 wrote to memory of 1628	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	88
PID 1808 wrote to memory of 4868	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	90
PID 1808 wrote to memory of 4868	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	90
PID 1808 wrote to memory of 4868	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	90
PID 1808 wrote to memory of 4844	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	92
PID 1808 wrote to memory of 4844	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	92
PID 1808 wrote to memory of 4844	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	92
PID 1808 wrote to memory of 2512	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	94
PID 1808 wrote to memory of 2512	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	94
PID 1808 wrote to memory of 2512	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	94
PID 1808 wrote to memory of 1840	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	97
PID 1808 wrote to memory of 1840	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	97
PID 1808 wrote to memory of 1840	1808	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	97
PID 4944 wrote to memory of 2728	4944	pnwxgcrn.exe	102
PID 4944 wrote to memory of 2728	4944	pnwxgcrn.exe	102
PID 4944 wrote to memory of 2728	4944	pnwxgcrn.exe	102
PID 4944 wrote to memory of 2728	4944	pnwxgcrn.exe	102
PID 4944 wrote to memory of 2728	4944	pnwxgcrn.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\scrmdagl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pnwxgcrn.exe" C:\Windows\SysWOW64\scrmdagl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create scrmdagl binPath= "C:\Windows\SysWOW64\scrmdagl\pnwxgcrn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description scrmdagl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start scrmdagl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2512
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:1840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 1216
  2⤵
  - Program crash
  PID:3640

C:\Windows\SysWOW64\scrmdagl\pnwxgcrn.exe
C:\Windows\SysWOW64\scrmdagl\pnwxgcrn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4944 -s 536
  2⤵
  - Program crash
  PID:3916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1808 -ip 1808
1⤵
PID:3188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4944 -ip 4944
1⤵
PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\pnwxgcrn.exe

Filesize
12.2MB

MD5
9b4f890e9663b90590bb71ae42e4700d

SHA1
dfac896b39b5aac372e8254def04c5fa95d02a2c

SHA256
e0407cea6f2a232178c2d87e2bcd376db8a6c60b83d71b5eef3e3652557ef92d

SHA512
c63d5e6de582c17cf54e986a5dfbe42de8a7b8465ceeb3f9793612ee34ee6b1fe089a8baab5929bcd6104c43a4c65e088f848423e95af607ce24a0cdbfad752a

Download Submit
memory/1808-8-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/1808-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1808-2-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/1808-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1808-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1808-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/2728-14-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/2728-16-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/2728-17-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/4944-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4944-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4944-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4944-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads