tofsee | 1731a77436c24217e5be57d93cb9e3354e5e38d005cf2202e6a1048da303ffc1

General

Target

2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe
Size

13.8MB
MD5

99fd259d8dba4646c7b263555322f4ae
SHA1

59d0249f0244270dae1959de2b71e253f2c1a6a4
SHA256

1731a77436c24217e5be57d93cb9e3354e5e38d005cf2202e6a1048da303ffc1
SHA512

56e1dccee2cdd5ce7737f8942b367a6b1f75adb87da49938e08e7c331d0639bb81eb96fd752927cb57102c179234d0f69754c009c2f00084a0e7fdc9eee88d28
SSDEEP

393216:hXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXC:k

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
3836	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\wslvedij\ImagePath = "C:\\Windows\\SysWOW64\\wslvedij\\tksqavcq.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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe

Deletes itself 1 IoCs

pid	Process
3984	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5028	tksqavcq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5028 set thread context of 3984	5028	tksqavcq.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
2088	sc.exe
3712	sc.exe
64	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

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	netsh.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	tksqavcq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 4612	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	86
PID 1172 wrote to memory of 4612	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	86
PID 1172 wrote to memory of 4612	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	86
PID 1172 wrote to memory of 1780	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	88
PID 1172 wrote to memory of 1780	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	88
PID 1172 wrote to memory of 1780	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	88
PID 1172 wrote to memory of 2088	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	90
PID 1172 wrote to memory of 2088	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	90
PID 1172 wrote to memory of 2088	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	90
PID 1172 wrote to memory of 3712	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	92
PID 1172 wrote to memory of 3712	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	92
PID 1172 wrote to memory of 3712	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	92
PID 1172 wrote to memory of 64	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	94
PID 1172 wrote to memory of 64	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	94
PID 1172 wrote to memory of 64	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	94
PID 1172 wrote to memory of 3836	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	97
PID 1172 wrote to memory of 3836	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	97
PID 1172 wrote to memory of 3836	1172	2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe	97
PID 5028 wrote to memory of 3984	5028	tksqavcq.exe	99
PID 5028 wrote to memory of 3984	5028	tksqavcq.exe	99
PID 5028 wrote to memory of 3984	5028	tksqavcq.exe	99
PID 5028 wrote to memory of 3984	5028	tksqavcq.exe	99
PID 5028 wrote to memory of 3984	5028	tksqavcq.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wslvedij\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4612
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tksqavcq.exe" C:\Windows\SysWOW64\wslvedij\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wslvedij binPath= "C:\Windows\SysWOW64\wslvedij\tksqavcq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wslvedij "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wslvedij
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:64
- 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:3836

C:\Windows\SysWOW64\wslvedij\tksqavcq.exe
C:\Windows\SysWOW64\wslvedij\tksqavcq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_99fd259d8dba4646c7b263555322f4ae_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5028
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3984

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\tksqavcq.exe

Filesize
10.5MB

MD5
e1fd400ae4b97ebf1851ed6f7baf790c

SHA1
780527b1d8b7b6f12c93ea105dbd0ff061faee35

SHA256
c3feae91cbd3153423ae92457907ac8c7868de00950e15d01c938f117294c4da

SHA512
e3b9e41183ce6bb70754b3b680681c972c81eac377b0044d96bc5618aa94d869ee052b03274d6e4dc15b20af5e3c777598cf6fbdb41cb860fc0958f3794389a0

Download Submit
memory/1172-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1172-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1172-2-0x0000000000610000-0x0000000000623000-memory.dmp

Filesize
76KB

Download
memory/1172-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1172-8-0x0000000000610000-0x0000000000623000-memory.dmp

Filesize
76KB

Download
memory/1172-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/3984-13-0x0000000000D20000-0x0000000000D35000-memory.dmp

Filesize
84KB

Download
memory/3984-15-0x0000000000D20000-0x0000000000D35000-memory.dmp

Filesize
84KB

Download
memory/3984-17-0x0000000000D20000-0x0000000000D35000-memory.dmp

Filesize
84KB

Download
memory/5028-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5028-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5028-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads