tofsee | b8434955e89048aed065797f41580e2e57c4c88a0a041fe5dd318b93cd8bf488

Reason

Machine shutdown

General

Target

2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe
Size

12.8MB
MD5

5f6da24126e4a10d918138c0fede00b3
SHA1

f4dbc10b7816a295ae5fbe0dedc97c0cc5a77efd
SHA256

b8434955e89048aed065797f41580e2e57c4c88a0a041fe5dd318b93cd8bf488
SHA512

d31544ad2aea2469c757f7d6ca9e432c9363a8907f3437a6b944dd339a28c092cd62934e6d1f98af7ec72c26e2487da6ffdca4c025876ff2c332d6a06bc75cb2
SSDEEP

24576:BpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttH:booh

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
1816	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\xtnmvhon\ImagePath = "C:\\Windows\\SysWOW64\\xtnmvhon\\ljstcynj.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-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe

Deletes itself 1 IoCs

pid	Process
1432	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1784	ljstcynj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1784 set thread context of 1432	1784	ljstcynj.exe	118

Launches sc.exe 3 IoCs

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

pid	Process
2384	sc.exe
4852	sc.exe
3828	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
4480	1564	WerFault.exe	83
2568	1784	WerFault.exe	109

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	2025-02-07_5f6da24126e4a10d918138c0fede00b3_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ljstcynj.exe
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1564 wrote to memory of 3652	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	97
PID 1564 wrote to memory of 3652	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	97
PID 1564 wrote to memory of 3652	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	97
PID 1564 wrote to memory of 3220	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	99
PID 1564 wrote to memory of 3220	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	99
PID 1564 wrote to memory of 3220	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	99
PID 1564 wrote to memory of 4852	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	101
PID 1564 wrote to memory of 4852	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	101
PID 1564 wrote to memory of 4852	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	101
PID 1564 wrote to memory of 3828	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	105
PID 1564 wrote to memory of 3828	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	105
PID 1564 wrote to memory of 3828	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	105
PID 1564 wrote to memory of 2384	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	107
PID 1564 wrote to memory of 2384	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	107
PID 1564 wrote to memory of 2384	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	107
PID 1564 wrote to memory of 1816	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	110
PID 1564 wrote to memory of 1816	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	110
PID 1564 wrote to memory of 1816	1564	2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe	110
PID 1784 wrote to memory of 1432	1784	ljstcynj.exe	118
PID 1784 wrote to memory of 1432	1784	ljstcynj.exe	118
PID 1784 wrote to memory of 1432	1784	ljstcynj.exe	118
PID 1784 wrote to memory of 1432	1784	ljstcynj.exe	118
PID 1784 wrote to memory of 1432	1784	ljstcynj.exe	118

C:\Users\Admin\AppData\Local\Temp\2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xtnmvhon\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ljstcynj.exe" C:\Windows\SysWOW64\xtnmvhon\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xtnmvhon binPath= "C:\Windows\SysWOW64\xtnmvhon\ljstcynj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xtnmvhon "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xtnmvhon
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2384
- 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:1816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1564 -s 1044
  2⤵
  - Program crash
  PID:4480

C:\Windows\SysWOW64\xtnmvhon\ljstcynj.exe
C:\Windows\SysWOW64\xtnmvhon\ljstcynj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_5f6da24126e4a10d918138c0fede00b3_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1784
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1784 -s 516
  2⤵
  - Program crash
  PID:2568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1564 -ip 1564
1⤵
PID:4428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1784 -ip 1784
1⤵
PID:2464

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

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Downloads

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

Filesize
10.6MB

MD5
4e54b032b0e29f95392df81f3cf86bdb

SHA1
b50b5080461a0d173dd5a5e24e09ef34fd62b5d1

SHA256
1ce7ff5421cf72e5d7a086932b66c09a3a5f36b7c832812fef73b7437e999c05

SHA512
6016a598869874f62f7499906545d65997c6d473b97e5a5bc66c1128d61671bdc4958d80c08d4be2f989869641f7ed2a9a236542b0e9ca8a843729bca3650307

Download Submit
memory/1432-14-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/1432-17-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/1432-16-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/1564-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/1564-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1564-1-0x0000000000790000-0x0000000000890000-memory.dmp

Filesize
1024KB

Download
memory/1564-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1564-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1564-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/1784-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1784-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1784-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1784-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads