tofsee | 012b2dc2827ee31a0b8ccef828799f12e23a8d9c3d2915289f60189b4af51180

General

Target

2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe
Size

11.8MB
MD5

5c5fc14632ee6c8f8bd6fb6664f59b29
SHA1

3b59669ccf60c1b2800aca7a2112e48623f2fcb4
SHA256

012b2dc2827ee31a0b8ccef828799f12e23a8d9c3d2915289f60189b4af51180
SHA512

6800f18817a67d2d92afdcb00fb9907d11d0206ac6e82264d756fb2a11c62b10710222b8b4df51384f0f3a23f97c90c2f5a3cc9b5989ff2d8f76231b92efca39
SSDEEP

196608:LyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:mXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn

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
4940	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\xguwpxum\ImagePath = "C:\\Windows\\SysWOW64\\xguwpxum\\kbxevuyc.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe

Deletes itself 1 IoCs

pid	Process
3456	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2024	kbxevuyc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2024 set thread context of 3456	2024	kbxevuyc.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
3972	sc.exe
1696	sc.exe
4168	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

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	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.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	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	kbxevuyc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 2648	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	84
PID 5100 wrote to memory of 2648	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	84
PID 5100 wrote to memory of 2648	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	84
PID 5100 wrote to memory of 4012	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	86
PID 5100 wrote to memory of 4012	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	86
PID 5100 wrote to memory of 4012	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	86
PID 5100 wrote to memory of 3972	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	88
PID 5100 wrote to memory of 3972	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	88
PID 5100 wrote to memory of 3972	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	88
PID 5100 wrote to memory of 1696	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	90
PID 5100 wrote to memory of 1696	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	90
PID 5100 wrote to memory of 1696	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	90
PID 5100 wrote to memory of 4168	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	92
PID 5100 wrote to memory of 4168	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	92
PID 5100 wrote to memory of 4168	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	92
PID 2024 wrote to memory of 3456	2024	kbxevuyc.exe	95
PID 2024 wrote to memory of 3456	2024	kbxevuyc.exe	95
PID 2024 wrote to memory of 3456	2024	kbxevuyc.exe	95
PID 5100 wrote to memory of 4940	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	96
PID 5100 wrote to memory of 4940	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	96
PID 5100 wrote to memory of 4940	5100	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	96
PID 2024 wrote to memory of 3456	2024	kbxevuyc.exe	95
PID 2024 wrote to memory of 3456	2024	kbxevuyc.exe	95

C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xguwpxum\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kbxevuyc.exe" C:\Windows\SysWOW64\xguwpxum\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xguwpxum binPath= "C:\Windows\SysWOW64\xguwpxum\kbxevuyc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xguwpxum "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xguwpxum
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4168
- 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:4940

C:\Windows\SysWOW64\xguwpxum\kbxevuyc.exe
C:\Windows\SysWOW64\xguwpxum\kbxevuyc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3456

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\kbxevuyc.exe

Filesize
13.5MB

MD5
92525d10c7a91b8f7e0e8154112103d7

SHA1
8c16532a5ed36bb1916e82faf75d2b36f63661ab

SHA256
170329037d0e0dd666a4aecbf168ad3959477bb930713b89b0fbf92503a5246c

SHA512
bb1e6515b99f85b78420a7bc657abdd9d3196f33dd0583499a0796dbf30c7a7b358b15cc3209b27acad2e1685f838f395eaf9d0c74adede972f4596e4364c45c

Download Submit
memory/2024-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2024-19-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2024-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2024-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3456-14-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/3456-11-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/3456-20-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/3456-21-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/3456-22-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/5100-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5100-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/5100-2-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/5100-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5100-17-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/5100-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads