tofsee | 41809b91b64022b92d4cddb654f6e9d07b0d1dd7466477fe0a79c4a54764cc95

General

Target

2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe
Size

10.9MB
MD5

7ba2801b028ce19866ac45a149dc1360
SHA1

8c1c6f6c4b4c2656e328a79b8628c62090a6ef8e
SHA256

41809b91b64022b92d4cddb654f6e9d07b0d1dd7466477fe0a79c4a54764cc95
SHA512

a8312c22d44b8e1e3e3a7ca3de10162227c45573e2723e69c1dbd81a70ab2b9cfa53d36ccf22dc227d5c27d946d1d40a44f6f4523d6860b73a925cbc715afc21
SSDEEP

24576:TpomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt1:VooD

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
1488	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\dyxclxt\ImagePath = "C:\\Windows\\SysWOW64\\dyxclxt\\inxsmyvx.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe

Deletes itself 1 IoCs

pid	Process
2156	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1152	inxsmyvx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1152 set thread context of 2156	1152	inxsmyvx.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2988	sc.exe
876	sc.exe
4580	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 opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1700	5056	WerFault.exe	81
3124	1152	WerFault.exe	92

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_7ba2801b028ce19866ac45a149dc1360_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	svchost.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	inxsmyvx.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 2768	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	82
PID 5056 wrote to memory of 2768	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	82
PID 5056 wrote to memory of 2768	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	82
PID 5056 wrote to memory of 1624	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	84
PID 5056 wrote to memory of 1624	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	84
PID 5056 wrote to memory of 1624	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	84
PID 5056 wrote to memory of 2988	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	86
PID 5056 wrote to memory of 2988	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	86
PID 5056 wrote to memory of 2988	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	86
PID 5056 wrote to memory of 876	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	88
PID 5056 wrote to memory of 876	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	88
PID 5056 wrote to memory of 876	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	88
PID 5056 wrote to memory of 4580	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	90
PID 5056 wrote to memory of 4580	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	90
PID 5056 wrote to memory of 4580	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	90
PID 5056 wrote to memory of 1488	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	93
PID 5056 wrote to memory of 1488	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	93
PID 5056 wrote to memory of 1488	5056	2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe	93
PID 1152 wrote to memory of 2156	1152	inxsmyvx.exe	98
PID 1152 wrote to memory of 2156	1152	inxsmyvx.exe	98
PID 1152 wrote to memory of 2156	1152	inxsmyvx.exe	98
PID 1152 wrote to memory of 2156	1152	inxsmyvx.exe	98
PID 1152 wrote to memory of 2156	1152	inxsmyvx.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dyxclxt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\inxsmyvx.exe" C:\Windows\SysWOW64\dyxclxt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dyxclxt binPath= "C:\Windows\SysWOW64\dyxclxt\inxsmyvx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dyxclxt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dyxclxt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4580
- 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:1488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5056 -s 652
  2⤵
  - Program crash
  PID:1700

C:\Windows\SysWOW64\dyxclxt\inxsmyvx.exe
C:\Windows\SysWOW64\dyxclxt\inxsmyvx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_7ba2801b028ce19866ac45a149dc1360_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1152 -s 508
  2⤵
  - Program crash
  PID:3124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5056 -ip 5056
1⤵
PID:1816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1152 -ip 1152
1⤵
PID:2168

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\inxsmyvx.exe

Filesize
10.0MB

MD5
8c84a56e93d3d64f606612c8896c9f91

SHA1
f9abd561552946d6c6cf836232d474e468f60a34

SHA256
4d581fc3d322eb9ab19a7e734683b4ce2b59da25d55b60c9579a7606ab26b34d

SHA512
5c9e3a6ec25ecf4ce6a80b477ce1f0ec723e3fcca9967937d0a546098b1076bc4545643164b9aec052f37f276feeae89e6a947a91eb1a2194d5b12e1f43d4ff3

Download Submit
memory/1152-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1152-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1152-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1152-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2156-14-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download
memory/2156-16-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download
memory/2156-17-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download
memory/5056-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5056-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/5056-8-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/5056-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5056-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5056-2-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads