tofsee | 1353256ab0a8e7ec45d22c075cdf413dffd5c945297aca835b604add7f29d817

General

Target

2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe
Size

11.7MB
MD5

7ee3b912e1f5a5e3522f1852c0ae22f3
SHA1

c984f0f5ce389d3fa971a989a4e8bf99ecb9f7a6
SHA256

1353256ab0a8e7ec45d22c075cdf413dffd5c945297aca835b604add7f29d817
SHA512

7ee8dd8186ce83726ede8028bf450b4d87a489ce7cd45a5d963f97517bfa102abf4850d35b33c2a346698f78108fc11ad6a0f2777697fa7294e51a4d28a58c80
SSDEEP

196608:NyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXO:YXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX+

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
384	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\kmsntnud\ImagePath = "C:\\Windows\\SysWOW64\\kmsntnud\\gsrfqaic.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe

Deletes itself 1 IoCs

pid	Process
888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2592	gsrfqaic.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2592 set thread context of 888	2592	gsrfqaic.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
2708	sc.exe
1120	sc.exe
2360	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gsrfqaic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 2992	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	86
PID 1796 wrote to memory of 2992	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	86
PID 1796 wrote to memory of 2992	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	86
PID 1796 wrote to memory of 4244	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	88
PID 1796 wrote to memory of 4244	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	88
PID 1796 wrote to memory of 4244	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	88
PID 1796 wrote to memory of 2708	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	90
PID 1796 wrote to memory of 2708	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	90
PID 1796 wrote to memory of 2708	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	90
PID 1796 wrote to memory of 1120	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	92
PID 1796 wrote to memory of 1120	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	92
PID 1796 wrote to memory of 1120	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	92
PID 1796 wrote to memory of 2360	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	94
PID 1796 wrote to memory of 2360	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	94
PID 1796 wrote to memory of 2360	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	94
PID 1796 wrote to memory of 384	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	97
PID 1796 wrote to memory of 384	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	97
PID 1796 wrote to memory of 384	1796	2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe	97
PID 2592 wrote to memory of 888	2592	gsrfqaic.exe	99
PID 2592 wrote to memory of 888	2592	gsrfqaic.exe	99
PID 2592 wrote to memory of 888	2592	gsrfqaic.exe	99
PID 2592 wrote to memory of 888	2592	gsrfqaic.exe	99
PID 2592 wrote to memory of 888	2592	gsrfqaic.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kmsntnud\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gsrfqaic.exe" C:\Windows\SysWOW64\kmsntnud\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kmsntnud binPath= "C:\Windows\SysWOW64\kmsntnud\gsrfqaic.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kmsntnud "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1120
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kmsntnud
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2360
- 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:384

C:\Windows\SysWOW64\kmsntnud\gsrfqaic.exe
C:\Windows\SysWOW64\kmsntnud\gsrfqaic.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_7ee3b912e1f5a5e3522f1852c0ae22f3_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:888

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\gsrfqaic.exe

Filesize
12.3MB

MD5
b137c1122cdf7928ea36ec3683589cce

SHA1
b68d7899b7a539407f887889c55045d477926acd

SHA256
821d32ec3b1096bab5043eb2a972bdd0bad4335ec556347d6bbcc5a7d876f46a

SHA512
622594adfbf65e7cc3f844fd3d5d3ca3eb0a70330eaa3d1736d7349c2c5041229b48a622d30ef3e6edf2e25812d4f415d8357416e35cf1421985c1c27a3531ba

Download Submit
memory/888-13-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/888-19-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/888-21-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/888-20-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/888-18-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/1796-8-0x00000000008C0000-0x00000000008D3000-memory.dmp

Filesize
76KB

Download
memory/1796-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/1796-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1796-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1796-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1796-2-0x00000000008C0000-0x00000000008D3000-memory.dmp

Filesize
76KB

Download
memory/2592-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2592-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2592-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads