tofsee | 631e4b7cd1f6f46adb711082731df6272005bbb08a60816958940926620fa003

General

Target

2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe
Size

13.1MB
MD5

1e9e9885708a14f2cba86d51c4868636
SHA1

82347df849fe9e5f1c109e98a55aa4a87f02d6c9
SHA256

631e4b7cd1f6f46adb711082731df6272005bbb08a60816958940926620fa003
SHA512

fa215415e49138a260b037294541a444d31d577d939e8a795f550ca85e6157260bcc300e6b70368b8f9d4dc1b481f209430bc71ec2f38fda601bad69b6a4a0b4
SSDEEP

24576:aEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZT:zfot

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
3876	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\xuucusgt\ImagePath = "C:\\Windows\\SysWOW64\\xuucusgt\\omvwfbqm.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe

Deletes itself 1 IoCs

pid	Process
4924	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2816	omvwfbqm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 4924	2816	omvwfbqm.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3288	sc.exe
4200	sc.exe
1692	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1440	4080	WerFault.exe	81
4596	2816	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	2025-02-02_1e9e9885708a14f2cba86d51c4868636_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omvwfbqm.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 4080 wrote to memory of 2208	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	82
PID 4080 wrote to memory of 2208	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	82
PID 4080 wrote to memory of 2208	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	82
PID 4080 wrote to memory of 1140	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	84
PID 4080 wrote to memory of 1140	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	84
PID 4080 wrote to memory of 1140	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	84
PID 4080 wrote to memory of 3288	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	86
PID 4080 wrote to memory of 3288	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	86
PID 4080 wrote to memory of 3288	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	86
PID 4080 wrote to memory of 4200	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	88
PID 4080 wrote to memory of 4200	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	88
PID 4080 wrote to memory of 4200	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	88
PID 4080 wrote to memory of 1692	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	90
PID 4080 wrote to memory of 1692	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	90
PID 4080 wrote to memory of 1692	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	90
PID 4080 wrote to memory of 3876	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	93
PID 4080 wrote to memory of 3876	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	93
PID 4080 wrote to memory of 3876	4080	2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe	93
PID 2816 wrote to memory of 4924	2816	omvwfbqm.exe	98
PID 2816 wrote to memory of 4924	2816	omvwfbqm.exe	98
PID 2816 wrote to memory of 4924	2816	omvwfbqm.exe	98
PID 2816 wrote to memory of 4924	2816	omvwfbqm.exe	98
PID 2816 wrote to memory of 4924	2816	omvwfbqm.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xuucusgt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\omvwfbqm.exe" C:\Windows\SysWOW64\xuucusgt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xuucusgt binPath= "C:\Windows\SysWOW64\xuucusgt\omvwfbqm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xuucusgt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xuucusgt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1692
- 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:3876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4080 -s 1212
  2⤵
  - Program crash
  PID:1440

C:\Windows\SysWOW64\xuucusgt\omvwfbqm.exe
C:\Windows\SysWOW64\xuucusgt\omvwfbqm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1e9e9885708a14f2cba86d51c4868636_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 508
  2⤵
  - Program crash
  PID:4596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4080 -ip 4080
1⤵
PID:2752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2816 -ip 2816
1⤵
PID:4972

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
10.6MB

MD5
888bc48b99f2bf0e6f1d86e75693a594

SHA1
10d6aec0a5b12570da717df0e9241fb3279326fd

SHA256
04e95ef7730b56a4b1a079970364b074a30fbb47e328b2551360e3845f275b1f

SHA512
c0cd2d2dd22adc11cedb90242d11edb43d8c9a27ced87404d6a38005d99354365027e41f0cfe2863bf5af19d31986764dd35374d732270b5e17799c46485d3b2

Download Submit
memory/2816-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2816-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2816-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2816-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4080-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4080-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/4080-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4080-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4080-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4080-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4924-14-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/4924-16-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/4924-18-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads