tofsee | 69b8ce694676ef83dba8b43ad91865e1c1c1c65e940dc61c85f06620984e2b44

General

Target

2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe
Size

13.2MB
MD5

bad8fe193f8e3dfb32b36fb15db7847c
SHA1

b16ec95b086bde81dec539ccb047b116c4ef956e
SHA256

69b8ce694676ef83dba8b43ad91865e1c1c1c65e940dc61c85f06620984e2b44
SHA512

dc04ddd04e70220d7187a0d5771df3c3f855e79a78730d33e5537a6224ba49dcd6777499ab3a6049cb291a5868ede3204bbcbbc0fc6fa14300b3ed0534e55abc
SSDEEP

6144:QLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQI:FTYe+D2jFu+iZoUFhAz

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
844	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\xnmfsshk\ImagePath = "C:\\Windows\\SysWOW64\\xnmfsshk\\jfxxujiw.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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe

Deletes itself 1 IoCs

pid	Process
4852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3148	jfxxujiw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3148 set thread context of 4852	3148	jfxxujiw.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4564	sc.exe
668	sc.exe
4868	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
3984	2992	WerFault.exe	82
1556	3148	WerFault.exe	96

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	jfxxujiw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 4056	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	86
PID 2992 wrote to memory of 4056	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	86
PID 2992 wrote to memory of 4056	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	86
PID 2992 wrote to memory of 3656	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	88
PID 2992 wrote to memory of 3656	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	88
PID 2992 wrote to memory of 3656	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	88
PID 2992 wrote to memory of 4564	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	90
PID 2992 wrote to memory of 4564	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	90
PID 2992 wrote to memory of 4564	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	90
PID 2992 wrote to memory of 668	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	92
PID 2992 wrote to memory of 668	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	92
PID 2992 wrote to memory of 668	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	92
PID 2992 wrote to memory of 4868	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	94
PID 2992 wrote to memory of 4868	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	94
PID 2992 wrote to memory of 4868	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	94
PID 3148 wrote to memory of 4852	3148	jfxxujiw.exe	97
PID 3148 wrote to memory of 4852	3148	jfxxujiw.exe	97
PID 3148 wrote to memory of 4852	3148	jfxxujiw.exe	97
PID 3148 wrote to memory of 4852	3148	jfxxujiw.exe	97
PID 3148 wrote to memory of 4852	3148	jfxxujiw.exe	97
PID 2992 wrote to memory of 844	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	99
PID 2992 wrote to memory of 844	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	99
PID 2992 wrote to memory of 844	2992	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xnmfsshk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jfxxujiw.exe" C:\Windows\SysWOW64\xnmfsshk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xnmfsshk binPath= "C:\Windows\SysWOW64\xnmfsshk\jfxxujiw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xnmfsshk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xnmfsshk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4868
- 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:844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 1036
  2⤵
  - Program crash
  PID:3984

C:\Windows\SysWOW64\xnmfsshk\jfxxujiw.exe
C:\Windows\SysWOW64\xnmfsshk\jfxxujiw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 528
  2⤵
  - Program crash
  PID:1556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2992 -ip 2992
1⤵
PID:2984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3148 -ip 3148
1⤵
PID:3004

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\jfxxujiw.exe

Filesize
10.8MB

MD5
23f478934fbdda8862b58c1512a7a11f

SHA1
28a77f9adbfec9628585130fdfe29b76f768e0d7

SHA256
b2333f74570818278fb6a3b62a76965be56bea83cf21e8069343cadacba767a0

SHA512
a992f10015de7004a6a28a5c975254af7bf07d099b7825fead22d703f3caa154ef56a6355f6ac3c6aa551e890915304806b571ac9de056c1642e55202ce369e1

Download Submit
memory/2992-16-0x00000000006F0000-0x0000000000703000-memory.dmp

Filesize
76KB

Download
memory/2992-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2992-2-0x00000000006F0000-0x0000000000703000-memory.dmp

Filesize
76KB

Download
memory/2992-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2992-1-0x0000000000730000-0x0000000000830000-memory.dmp

Filesize
1024KB

Download
memory/2992-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3148-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3148-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4852-9-0x0000000000F10000-0x0000000000F25000-memory.dmp

Filesize
84KB

Download
memory/4852-12-0x0000000000F10000-0x0000000000F25000-memory.dmp

Filesize
84KB

Download
memory/4852-18-0x0000000000F10000-0x0000000000F25000-memory.dmp

Filesize
84KB

Download
memory/4852-19-0x0000000000F10000-0x0000000000F25000-memory.dmp

Filesize
84KB

Download
memory/4852-20-0x0000000000F10000-0x0000000000F25000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads