tofsee | 0091df4f1cff51f1d1e44073aeaeb258e041dd1ec33729eb6830fb423518056f

General

Target

2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe
Size

10.5MB
MD5

77bf4a605135e1410892564c7dc6c293
SHA1

a4848d7ac219fa7c6b5dbc63a189069feb0c0cec
SHA256

0091df4f1cff51f1d1e44073aeaeb258e041dd1ec33729eb6830fb423518056f
SHA512

65beabe3eae6fa2df5dc1c79830ddc9485996949f501f12bc12b35589913bd276e10498d861303939705b03778ea25c9e6c0549f6ab38482a6b4605817a6146d
SSDEEP

3072:lLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:IOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4760	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\ohuowjaj\ImagePath = "C:\\Windows\\SysWOW64\\ohuowjaj\\jmsmbmxd.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe

Deletes itself 1 IoCs

pid	Process
5104	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
704	jmsmbmxd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 704 set thread context of 5104	704	jmsmbmxd.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1108	sc.exe
3652	sc.exe
3748	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
3496	4692	WerFault.exe	81
3404	704	WerFault.exe	92

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	2025-01-22_77bf4a605135e1410892564c7dc6c293_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	jmsmbmxd.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4692 wrote to memory of 2788	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	82
PID 4692 wrote to memory of 2788	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	82
PID 4692 wrote to memory of 2788	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	82
PID 4692 wrote to memory of 772	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	84
PID 4692 wrote to memory of 772	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	84
PID 4692 wrote to memory of 772	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	84
PID 4692 wrote to memory of 3652	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	86
PID 4692 wrote to memory of 3652	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	86
PID 4692 wrote to memory of 3652	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	86
PID 4692 wrote to memory of 3748	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	88
PID 4692 wrote to memory of 3748	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	88
PID 4692 wrote to memory of 3748	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	88
PID 4692 wrote to memory of 1108	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	90
PID 4692 wrote to memory of 1108	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	90
PID 4692 wrote to memory of 1108	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	90
PID 4692 wrote to memory of 4760	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	93
PID 4692 wrote to memory of 4760	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	93
PID 4692 wrote to memory of 4760	4692	2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe	93
PID 704 wrote to memory of 5104	704	jmsmbmxd.exe	102
PID 704 wrote to memory of 5104	704	jmsmbmxd.exe	102
PID 704 wrote to memory of 5104	704	jmsmbmxd.exe	102
PID 704 wrote to memory of 5104	704	jmsmbmxd.exe	102
PID 704 wrote to memory of 5104	704	jmsmbmxd.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ohuowjaj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jmsmbmxd.exe" C:\Windows\SysWOW64\ohuowjaj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ohuowjaj binPath= "C:\Windows\SysWOW64\ohuowjaj\jmsmbmxd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ohuowjaj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ohuowjaj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1108
- 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:4760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 1192
  2⤵
  - Program crash
  PID:3496

C:\Windows\SysWOW64\ohuowjaj\jmsmbmxd.exe
C:\Windows\SysWOW64\ohuowjaj\jmsmbmxd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_77bf4a605135e1410892564c7dc6c293_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:704
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 704 -s 512
  2⤵
  - Program crash
  PID:3404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4692 -ip 4692
1⤵
PID:4624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 704 -ip 704
1⤵
PID:4884

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\jmsmbmxd.exe

Filesize
11.8MB

MD5
a921b629e792ae2c82da871f0ca3c2ab

SHA1
b16e509331d9878dc65b9fb0c75c8f26efdfa239

SHA256
9025fc47c074ea234caf1142b57ba9b261c6afe630921a0b10803b1ff8790ec1

SHA512
a0df6a155d3760bd5399a8a1c654d1b1f52832029138fe16cf604ae4844191519c7e12ba331d428d36b3d08fee3812a6a07571525295996b62541231f094033b

Download Submit
memory/704-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/704-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/704-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/704-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4692-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4692-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/4692-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4692-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4692-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4692-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/5104-14-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/5104-16-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/5104-17-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads