tofsee | 9bd792eca76211c95ac0a2784352fdf7a05ee0777bc82da3c01705bd3a2f5805

General

Target

2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe
Size

12.9MB
MD5

dca9851dd5b3c621112b5221c0a8c8bb
SHA1

f0801a31405c04944f6742f8ace32064199640ee
SHA256

9bd792eca76211c95ac0a2784352fdf7a05ee0777bc82da3c01705bd3a2f5805
SHA512

b7be837948c2fef6c9dff026d76c468b8ec54250b590fd8fee5c477ad887449823c5043bd5da55cba12b94ccd43fbdbfd97ed37f2e71351dbb2d6ce2491a21ec
SSDEEP

24576:TpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttN:Voo

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
54	1220	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2980	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\ctsnhbyq\ImagePath = "C:\\Windows\\SysWOW64\\ctsnhbyq\\fdmnwshd.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-1-5-21-1290774215-692483676-1419523182-1000\Control Panel\International\Geo\Nation	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe

Deletes itself 1 IoCs

pid	Process
3840	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3216	fdmnwshd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3216 set thread context of 3840	3216	fdmnwshd.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
3532	sc.exe
1764	sc.exe
2160	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
2872	3224	WerFault.exe	85
3260	3216	WerFault.exe	99

System Location Discovery: System Language Discovery 1 TTPs 10 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	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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fdmnwshd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4924	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3224 wrote to memory of 1196	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	89
PID 3224 wrote to memory of 1196	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	89
PID 3224 wrote to memory of 1196	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	89
PID 3224 wrote to memory of 3928	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	91
PID 3224 wrote to memory of 3928	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	91
PID 3224 wrote to memory of 3928	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	91
PID 3224 wrote to memory of 3532	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	93
PID 3224 wrote to memory of 3532	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	93
PID 3224 wrote to memory of 3532	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	93
PID 3224 wrote to memory of 1764	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	95
PID 3224 wrote to memory of 1764	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	95
PID 3224 wrote to memory of 1764	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	95
PID 3224 wrote to memory of 2160	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	97
PID 3224 wrote to memory of 2160	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	97
PID 3224 wrote to memory of 2160	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	97
PID 3224 wrote to memory of 2980	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	100
PID 3224 wrote to memory of 2980	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	100
PID 3224 wrote to memory of 2980	3224	2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe	100
PID 3216 wrote to memory of 3840	3216	fdmnwshd.exe	105
PID 3216 wrote to memory of 3840	3216	fdmnwshd.exe	105
PID 3216 wrote to memory of 3840	3216	fdmnwshd.exe	105
PID 3216 wrote to memory of 3840	3216	fdmnwshd.exe	105
PID 3216 wrote to memory of 3840	3216	fdmnwshd.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ctsnhbyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fdmnwshd.exe" C:\Windows\SysWOW64\ctsnhbyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ctsnhbyq binPath= "C:\Windows\SysWOW64\ctsnhbyq\fdmnwshd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ctsnhbyq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ctsnhbyq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2160
- 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:2980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3224 -s 732
  2⤵
  - Program crash
  PID:2872

C:\Windows\SysWOW64\ctsnhbyq\fdmnwshd.exe
C:\Windows\SysWOW64\ctsnhbyq\fdmnwshd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_dca9851dd5b3c621112b5221c0a8c8bb_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3216
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3216 -s 528
  2⤵
  - Program crash
  PID:3260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3224 -ip 3224
1⤵
PID:312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3216 -ip 3216
1⤵
PID:2912

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDQ5MjgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxNzQzMjM4OTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjAyODYzMTAzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4924

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
11.3MB

MD5
777e15e089ba600ddbeac170a8bea5b2

SHA1
7ab04ad8b3236778df03f9a3045a6b8699bb9613

SHA256
485b527082e1cd82267259911b67680914137d755644cdc03a5b0f6d3c0ac527

SHA512
540a05db1771811ad1fed4da34052d71cdd5d95a37a65aa2a39a94930edf5376eef5354584815fd58ba0437d49d7d5ba8b0be284c2b295516fe19f42760c484a

Download Submit
memory/3216-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3216-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3216-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3216-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3224-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3224-2-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/3224-8-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/3224-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3224-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3224-1-0x0000000000470000-0x0000000000570000-memory.dmp

Filesize
1024KB

Download
memory/3840-16-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/3840-17-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/3840-14-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads