tofsee | a4287a992a3a033ee2751d0afe1f3461109c37550a7ab412bb34114581b231b9

Analysis

max time kernel
146s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/02/2025, 21:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe
Size

13.6MB
MD5

f3b1b2b1d0278d2b6208d20373fa71c5
SHA1

4dde8a6c941614087573f4e298defc1c881e58df
SHA256

a4287a992a3a033ee2751d0afe1f3461109c37550a7ab412bb34114581b231b9
SHA512

f11b8f9fa2ed80835a741602365bd5f77591165dcaad2c5fc2cf08626137d2e355405dbc6f97d577866c5b34339a9ce21a6d1aee9b636f1283e9f52329095d57
SSDEEP

24576:t/0dLk3X4ICvkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkT:F0dLk3ohc

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\vezomzao = "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
2860	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\vezomzao\ImagePath = "C:\\Windows\\SysWOW64\\vezomzao\\inxsmyvx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2760	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2764	inxsmyvx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2764 set thread context of 2760	2764	inxsmyvx.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2032	sc.exe
2988	sc.exe
3056	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	inxsmyvx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 1628	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	30
PID 2504 wrote to memory of 1628	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	30
PID 2504 wrote to memory of 1628	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	30
PID 2504 wrote to memory of 1628	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	30
PID 2504 wrote to memory of 2240	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	32
PID 2504 wrote to memory of 2240	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	32
PID 2504 wrote to memory of 2240	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	32
PID 2504 wrote to memory of 2240	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	32
PID 2504 wrote to memory of 2032	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	34
PID 2504 wrote to memory of 2032	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	34
PID 2504 wrote to memory of 2032	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	34
PID 2504 wrote to memory of 2032	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	34
PID 2504 wrote to memory of 2988	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	36
PID 2504 wrote to memory of 2988	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	36
PID 2504 wrote to memory of 2988	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	36
PID 2504 wrote to memory of 2988	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	36
PID 2504 wrote to memory of 3056	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	38
PID 2504 wrote to memory of 3056	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	38
PID 2504 wrote to memory of 3056	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	38
PID 2504 wrote to memory of 3056	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	38
PID 2764 wrote to memory of 2760	2764	inxsmyvx.exe	41
PID 2764 wrote to memory of 2760	2764	inxsmyvx.exe	41
PID 2764 wrote to memory of 2760	2764	inxsmyvx.exe	41
PID 2764 wrote to memory of 2760	2764	inxsmyvx.exe	41
PID 2764 wrote to memory of 2760	2764	inxsmyvx.exe	41
PID 2764 wrote to memory of 2760	2764	inxsmyvx.exe	41
PID 2504 wrote to memory of 2860	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	42
PID 2504 wrote to memory of 2860	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	42
PID 2504 wrote to memory of 2860	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	42
PID 2504 wrote to memory of 2860	2504	2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vezomzao\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\inxsmyvx.exe" C:\Windows\SysWOW64\vezomzao\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vezomzao binPath= "C:\Windows\SysWOW64\vezomzao\inxsmyvx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2032
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vezomzao "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vezomzao
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3056
- 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:2860

C:\Windows\SysWOW64\vezomzao\inxsmyvx.exe
C:\Windows\SysWOW64\vezomzao\inxsmyvx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- 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:2760

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.0MB

MD5
92949e52d68a597ad1df8ad6ba547e1c

SHA1
bad9a3e7d82db41cefa904320be1b816db02e847

SHA256
05322fb3f692fc7d5188c7659008d6453da129594d5fe5d17e919fb8d925fd18

SHA512
95a6bad3751fb74773a401a2980117ef5ea08900cfa42b0f4c3e76e98ce293dbf716c125bf78438f30d5b0ab3123e3a0049d2d696b69a6ac7d079c0d66f178f6

Download Submit
memory/2504-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2504-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2504-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2504-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2504-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2504-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2760-8-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2760-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2760-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-17-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2760-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2764-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads