tofsee | ad3b1b5f8abd9b8186ee901709e414e879c25692e5b731185759eef23c8fa6f9

General

Target

2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe
Size

10.1MB
MD5

09c7d870826a2d9195bdf05d217b81c9
SHA1

e2caaa504993c218feceed300eb5304bc25de14e
SHA256

ad3b1b5f8abd9b8186ee901709e414e879c25692e5b731185759eef23c8fa6f9
SHA512

22bf9f6e7c92e2ba36d4c7f5999e41a55411644ccced3d99f8c057a3c15fba3a65cb94800bae99e95f49fede84ed88842fed9cb3dd2ca9e67cca5803b5b796df
SSDEEP

24576:n6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQZ:6WdLQkf

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
2388	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\fzljxprt\ImagePath = "C:\\Windows\\SysWOW64\\fzljxprt\\cbprfcdv.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-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe

Deletes itself 1 IoCs

pid	Process
4480	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	cbprfcdv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2660 set thread context of 4480	2660	cbprfcdv.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
1368	sc.exe
3200	sc.exe
2184	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
3236	2380	WerFault.exe	82
3000	2660	WerFault.exe	98

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cbprfcdv.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 4144	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	88
PID 2380 wrote to memory of 4144	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	88
PID 2380 wrote to memory of 4144	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	88
PID 2380 wrote to memory of 3536	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	90
PID 2380 wrote to memory of 3536	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	90
PID 2380 wrote to memory of 3536	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	90
PID 2380 wrote to memory of 1368	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	92
PID 2380 wrote to memory of 1368	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	92
PID 2380 wrote to memory of 1368	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	92
PID 2380 wrote to memory of 3200	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	94
PID 2380 wrote to memory of 3200	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	94
PID 2380 wrote to memory of 3200	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	94
PID 2380 wrote to memory of 2184	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	96
PID 2380 wrote to memory of 2184	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	96
PID 2380 wrote to memory of 2184	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	96
PID 2380 wrote to memory of 2388	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	99
PID 2380 wrote to memory of 2388	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	99
PID 2380 wrote to memory of 2388	2380	2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe	99
PID 2660 wrote to memory of 4480	2660	cbprfcdv.exe	104
PID 2660 wrote to memory of 4480	2660	cbprfcdv.exe	104
PID 2660 wrote to memory of 4480	2660	cbprfcdv.exe	104
PID 2660 wrote to memory of 4480	2660	cbprfcdv.exe	104
PID 2660 wrote to memory of 4480	2660	cbprfcdv.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fzljxprt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cbprfcdv.exe" C:\Windows\SysWOW64\fzljxprt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fzljxprt binPath= "C:\Windows\SysWOW64\fzljxprt\cbprfcdv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fzljxprt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fzljxprt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2184
- 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:2388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 792
  2⤵
  - Program crash
  PID:3236

C:\Windows\SysWOW64\fzljxprt\cbprfcdv.exe
C:\Windows\SysWOW64\fzljxprt\cbprfcdv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_09c7d870826a2d9195bdf05d217b81c9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2660 -s 532
  2⤵
  - Program crash
  PID:3000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2380 -ip 2380
1⤵
PID:1808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2660 -ip 2660
1⤵
PID:2396

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\cbprfcdv.exe

Filesize
11.2MB

MD5
7752f47fa8a96af72c9837026e0cb16c

SHA1
1ebf28d996177d663e18aebaf2972698a83691f8

SHA256
b41ee5d0cb48ab6b8dafb7f8c95d94a2df55460ab73534d6afb5d58997b6c29f

SHA512
4f18012131ed329647a3aaa2283d7befef7f594a6e7f71b77f98959ae8033e3c5aec0346bd42474fbbbd49ed7086aca30f2d0ba7506a201eeb886d0bc8a57387

Download Submit
memory/2380-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2380-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2380-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2380-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2660-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2660-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2660-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2660-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4480-14-0x0000000000490000-0x00000000004A5000-memory.dmp

Filesize
84KB

Download
memory/4480-16-0x0000000000490000-0x00000000004A5000-memory.dmp

Filesize
84KB

Download
memory/4480-17-0x0000000000490000-0x00000000004A5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads