tofsee | 8bd75372f704a8b6eebf3187b250c7a1bd885760d47b9191a4603b08645dc59b

Analysis

max time kernel
144s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 16:31

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General

Target

2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe
Size

11.7MB
MD5

b0fd4e430712651728eeef94f1698a34
SHA1

e7dc567b45b5aec4a0bf1e9b3377a12ce7456c43
SHA256

8bd75372f704a8b6eebf3187b250c7a1bd885760d47b9191a4603b08645dc59b
SHA512

695dd9016b2c2e7d092f23489988c7ae06986fd6423abd4314c2048754b22ee9fc830560e461d25cb61f4708f98d1d6f19322ea74b529eb849b2e223273ee314
SSDEEP

24576:06WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQp:ZWdLQkH

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\bokuqeva = "0"	svchost.exe

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
2600	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\bokuqeva\ImagePath = "C:\\Windows\\SysWOW64\\bokuqeva\\vakfzlik.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2580	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2748	vakfzlik.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2748 set thread context of 2580	2748	vakfzlik.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2716	sc.exe
2832	sc.exe
2576	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	vakfzlik.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	2025-01-31_b0fd4e430712651728eeef94f1698a34_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2812	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	30
PID 2124 wrote to memory of 2812	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	30
PID 2124 wrote to memory of 2812	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	30
PID 2124 wrote to memory of 2812	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	30
PID 2124 wrote to memory of 2708	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	32
PID 2124 wrote to memory of 2708	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	32
PID 2124 wrote to memory of 2708	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	32
PID 2124 wrote to memory of 2708	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	32
PID 2124 wrote to memory of 2832	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	34
PID 2124 wrote to memory of 2832	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	34
PID 2124 wrote to memory of 2832	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	34
PID 2124 wrote to memory of 2832	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	34
PID 2124 wrote to memory of 2576	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	36
PID 2124 wrote to memory of 2576	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	36
PID 2124 wrote to memory of 2576	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	36
PID 2124 wrote to memory of 2576	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	36
PID 2124 wrote to memory of 2716	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	38
PID 2124 wrote to memory of 2716	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	38
PID 2124 wrote to memory of 2716	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	38
PID 2124 wrote to memory of 2716	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	38
PID 2748 wrote to memory of 2580	2748	vakfzlik.exe	41
PID 2748 wrote to memory of 2580	2748	vakfzlik.exe	41
PID 2748 wrote to memory of 2580	2748	vakfzlik.exe	41
PID 2748 wrote to memory of 2580	2748	vakfzlik.exe	41
PID 2748 wrote to memory of 2580	2748	vakfzlik.exe	41
PID 2748 wrote to memory of 2580	2748	vakfzlik.exe	41
PID 2124 wrote to memory of 2600	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	42
PID 2124 wrote to memory of 2600	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	42
PID 2124 wrote to memory of 2600	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	42
PID 2124 wrote to memory of 2600	2124	2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bokuqeva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vakfzlik.exe" C:\Windows\SysWOW64\bokuqeva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bokuqeva binPath= "C:\Windows\SysWOW64\bokuqeva\vakfzlik.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bokuqeva "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bokuqeva
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- 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:2600

C:\Windows\SysWOW64\bokuqeva\vakfzlik.exe
C:\Windows\SysWOW64\bokuqeva\vakfzlik.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b0fd4e430712651728eeef94f1698a34_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.3MB

MD5
24d3f797ff43c1e30518a886abd9a5be

SHA1
251edb008fe198d53440d0a09cc80bfaabf52071

SHA256
e502287810cf416d0ac97df003c31d9efd575c4c7dd38ddbe0830affb6965877

SHA512
5294e5978ad540e7a5175135033e2e93901ecf69d32ef9ed7a275f16dd6b55935b7307b96e7390a1d56c5e2e29d0c00203d3ad85133b75a3e9909efaa0a46277

Download Submit
memory/2124-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2124-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2124-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2124-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2580-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2580-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2580-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2580-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2580-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2748-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads