tofsee | c0b7e00532c41afb64dd5254952b61511a945eb5d0ed492352919bc41397f4f5

General

Target

2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe
Size

11.4MB
MD5

6c5e452df29b5a756d22f22a8250e379
SHA1

2220bf75ba0c6eb8a2ae4740c8b63bdd04a2d8b8
SHA256

c0b7e00532c41afb64dd5254952b61511a945eb5d0ed492352919bc41397f4f5
SHA512

c563d976efa75b53187b2649bc3166f756b4d383cc5364c25e7b86a5d643879f7089c0eddb46bed2085f668c335f1c076646455337cb357aea534ffdf292977d
SSDEEP

3072:ZLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:cOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4440	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\lwogrddh\ImagePath = "C:\\Windows\\SysWOW64\\lwogrddh\\sbvasrmi.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	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe

Deletes itself 1 IoCs

pid	Process
2868	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4356	sbvasrmi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4356 set thread context of 2868	4356	sbvasrmi.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4960	sc.exe
2016	sc.exe
5104	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
3048	4668	WerFault.exe	80
2952	4356	WerFault.exe	94

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	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.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	sbvasrmi.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 4668 wrote to memory of 3132	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	84
PID 4668 wrote to memory of 3132	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	84
PID 4668 wrote to memory of 3132	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	84
PID 4668 wrote to memory of 3496	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	86
PID 4668 wrote to memory of 3496	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	86
PID 4668 wrote to memory of 3496	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	86
PID 4668 wrote to memory of 4960	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	88
PID 4668 wrote to memory of 4960	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	88
PID 4668 wrote to memory of 4960	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	88
PID 4668 wrote to memory of 2016	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	90
PID 4668 wrote to memory of 2016	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	90
PID 4668 wrote to memory of 2016	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	90
PID 4668 wrote to memory of 5104	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	92
PID 4668 wrote to memory of 5104	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	92
PID 4668 wrote to memory of 5104	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	92
PID 4668 wrote to memory of 4440	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	95
PID 4668 wrote to memory of 4440	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	95
PID 4668 wrote to memory of 4440	4668	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	95
PID 4356 wrote to memory of 2868	4356	sbvasrmi.exe	100
PID 4356 wrote to memory of 2868	4356	sbvasrmi.exe	100
PID 4356 wrote to memory of 2868	4356	sbvasrmi.exe	100
PID 4356 wrote to memory of 2868	4356	sbvasrmi.exe	100
PID 4356 wrote to memory of 2868	4356	sbvasrmi.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lwogrddh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3132
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sbvasrmi.exe" C:\Windows\SysWOW64\lwogrddh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lwogrddh binPath= "C:\Windows\SysWOW64\lwogrddh\sbvasrmi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lwogrddh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lwogrddh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5104
- 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:4440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 1296
  2⤵
  - Program crash
  PID:3048

C:\Windows\SysWOW64\lwogrddh\sbvasrmi.exe
C:\Windows\SysWOW64\lwogrddh\sbvasrmi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4356
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4356 -s 512
  2⤵
  - Program crash
  PID:2952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4668 -ip 4668
1⤵
PID:3676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4356 -ip 4356
1⤵
PID:4400

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\sbvasrmi.exe

Filesize
13.8MB

MD5
d630126c3b1e9ff5fa809689df8b3bba

SHA1
1d26e27df705224f4a6a4eab1c02a64c9de05700

SHA256
1406b3232ddd5a88fdac044d55a4702f7c2b4d20fb2d4fc395e1dc9189f2b6cd

SHA512
f02c06632a558115093a517b2a191bfe09d46c34b6672f27aa3f8ed6c75a41bb97a56fce99727e141b79832c49ac2a047bea9416f62ecff46d968aa60fe05368

Download Submit
memory/2868-14-0x0000000000BB0000-0x0000000000BC5000-memory.dmp

Filesize
84KB

Download
memory/2868-17-0x0000000000BB0000-0x0000000000BC5000-memory.dmp

Filesize
84KB

Download
memory/2868-16-0x0000000000BB0000-0x0000000000BC5000-memory.dmp

Filesize
84KB

Download
memory/4356-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4356-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4356-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4356-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4668-8-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/4668-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4668-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/4668-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4668-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4668-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads