tofsee | 362ef16713a9205e9a1160df602cf09107ddb1bab2b1dbe79d5b04f226cdbece

General

Target

2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe
Size

11.0MB
MD5

db790bf3ac4770ec2a11708dc44b6511
SHA1

fac61ca027009a01a31152e57088e8d06e51742b
SHA256

362ef16713a9205e9a1160df602cf09107ddb1bab2b1dbe79d5b04f226cdbece
SHA512

b0bd6cf5fb2ad7a230ce0dcbf5270b9e10caba9a2a5d8853d732faa16830b5a255c72c2302a9e74a14c952b5446f0f9f4c082831bd1f13c564650a0df5294f9d
SSDEEP

24576:H6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQw:aWdLQk

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
3172	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\dgjzgskq\ImagePath = "C:\\Windows\\SysWOW64\\dgjzgskq\\tvozgocs.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_db790bf3ac4770ec2a11708dc44b6511_mafia.exe

Deletes itself 1 IoCs

pid	Process
1568	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2020	tvozgocs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2020 set thread context of 1568	2020	tvozgocs.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4708	sc.exe
2944	sc.exe
216	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
4888	1724	WerFault.exe	81
1408	2020	WerFault.exe	95

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_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	tvozgocs.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 4820	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	82
PID 1724 wrote to memory of 4820	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	82
PID 1724 wrote to memory of 4820	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	82
PID 1724 wrote to memory of 4956	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	84
PID 1724 wrote to memory of 4956	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	84
PID 1724 wrote to memory of 4956	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	84
PID 1724 wrote to memory of 4708	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	86
PID 1724 wrote to memory of 4708	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	86
PID 1724 wrote to memory of 4708	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	86
PID 1724 wrote to memory of 2944	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	90
PID 1724 wrote to memory of 2944	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	90
PID 1724 wrote to memory of 2944	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	90
PID 1724 wrote to memory of 216	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	92
PID 1724 wrote to memory of 216	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	92
PID 1724 wrote to memory of 216	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	92
PID 1724 wrote to memory of 3172	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	97
PID 1724 wrote to memory of 3172	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	97
PID 1724 wrote to memory of 3172	1724	2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe	97
PID 2020 wrote to memory of 1568	2020	tvozgocs.exe	103
PID 2020 wrote to memory of 1568	2020	tvozgocs.exe	103
PID 2020 wrote to memory of 1568	2020	tvozgocs.exe	103
PID 2020 wrote to memory of 1568	2020	tvozgocs.exe	103
PID 2020 wrote to memory of 1568	2020	tvozgocs.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dgjzgskq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tvozgocs.exe" C:\Windows\SysWOW64\dgjzgskq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dgjzgskq binPath= "C:\Windows\SysWOW64\dgjzgskq\tvozgocs.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dgjzgskq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dgjzgskq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:216
- 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:3172
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 1036
  2⤵
  - Program crash
  PID:4888

C:\Windows\SysWOW64\dgjzgskq\tvozgocs.exe
C:\Windows\SysWOW64\dgjzgskq\tvozgocs.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_db790bf3ac4770ec2a11708dc44b6511_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 516
  2⤵
  - Program crash
  PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1724 -ip 1724
1⤵
PID:3232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2020 -ip 2020
1⤵
PID:1836

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\tvozgocs.exe

Filesize
10.9MB

MD5
aabf79388aabac1ed9c31a112f966460

SHA1
2a07b7e3d0cbf01f323781a0543fee27bdf5ef14

SHA256
ebb5d11aa27f40cf60e3816b58b9e597c9990771e5ab3bc994f7ebff9659a15c

SHA512
41df365423b25f0e63ca0e6be738c7cbeca2de8ceab93a4d1cb2db9f2bbec52b7e0840cc62b93199548e78def26c9e19cb4279cf15e1a9c80d305e8a56f44446

Download Submit
memory/1568-14-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/1568-17-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/1568-16-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/1724-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1724-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/1724-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/1724-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1724-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1724-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2020-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2020-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2020-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2020-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads