tofsee | faa27c56d471b15784ae7ccde9f7ae0ec110e6258f3f0aa1ca6acb5bd3d89094

General

Target

2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe
Size

12.8MB
MD5

63d1d57985863177aff31922317e6a2d
SHA1

a9e1d61beb6148cfe8f34eb18cbd750a1fcc94f6
SHA256

faa27c56d471b15784ae7ccde9f7ae0ec110e6258f3f0aa1ca6acb5bd3d89094
SHA512

d10c1c6077eed6955cfc404f32cdd7a140e7eeed965f458692e7e3f59f90e565b76b46897f733af2971f2908dcda5d7795593a7b3fac08d53a8e298d0e3de9c2
SSDEEP

49152:dqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPY:dqtYc3v

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
36	852	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4656	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\vkauodes\ImagePath = "C:\\Windows\\SysWOW64\\vkauodes\\mktudzok.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-1-5-21-2573923862-3221519550-2669654151-1000\Control Panel\International\Geo\Nation	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe

Deletes itself 1 IoCs

pid	Process
4812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2912	mktudzok.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 4812	2912	mktudzok.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3972	sc.exe
3192	sc.exe
4356	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1192	2912	WerFault.exe	99
1048	4888	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 10 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	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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.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	mktudzok.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3108	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 1560	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	89
PID 4888 wrote to memory of 1560	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	89
PID 4888 wrote to memory of 1560	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	89
PID 4888 wrote to memory of 3036	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	91
PID 4888 wrote to memory of 3036	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	91
PID 4888 wrote to memory of 3036	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	91
PID 4888 wrote to memory of 3972	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	93
PID 4888 wrote to memory of 3972	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	93
PID 4888 wrote to memory of 3972	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	93
PID 4888 wrote to memory of 3192	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	95
PID 4888 wrote to memory of 3192	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	95
PID 4888 wrote to memory of 3192	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	95
PID 4888 wrote to memory of 4356	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	97
PID 4888 wrote to memory of 4356	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	97
PID 4888 wrote to memory of 4356	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	97
PID 2912 wrote to memory of 4812	2912	mktudzok.exe	100
PID 2912 wrote to memory of 4812	2912	mktudzok.exe	100
PID 2912 wrote to memory of 4812	2912	mktudzok.exe	100
PID 2912 wrote to memory of 4812	2912	mktudzok.exe	100
PID 2912 wrote to memory of 4812	2912	mktudzok.exe	100
PID 4888 wrote to memory of 4656	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	103
PID 4888 wrote to memory of 4656	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	103
PID 4888 wrote to memory of 4656	4888	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vkauodes\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mktudzok.exe" C:\Windows\SysWOW64\vkauodes\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vkauodes binPath= "C:\Windows\SysWOW64\vkauodes\mktudzok.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vkauodes "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vkauodes
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4356
- 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:4656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1180
  2⤵
  - Program crash
  PID:1048

C:\Windows\SysWOW64\vkauodes\mktudzok.exe
C:\Windows\SysWOW64\vkauodes\mktudzok.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2912 -s 532
  2⤵
  - Program crash
  PID:1192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2912 -ip 2912
1⤵
PID:4740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4888 -ip 4888
1⤵
PID:1184

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4MTUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE1MzQzMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTI2MzI0OTcxIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3108

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
14.1MB

MD5
36f9f3c9ca50f2dcf8423c78794f20ef

SHA1
6b3f0bcc14017ef30e2c1cfa5a5b1eaa5678339a

SHA256
1543a45035bb1d16551be49a0352aa0a6f3afe3210121b1c1a292526a6376341

SHA512
48515a3cfebbfe7f889231a561a75118df4fe875463ca720447ecfc1c980c971e3e7888bbaa915bf601c04f8782dee7ddf8b71d4d040d6afe12dc31dabf88a58

Download Submit
memory/2912-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4812-8-0x0000000000E60000-0x0000000000E75000-memory.dmp

Filesize
84KB

Download
memory/4812-14-0x0000000000E60000-0x0000000000E75000-memory.dmp

Filesize
84KB

Download
memory/4812-15-0x0000000000E60000-0x0000000000E75000-memory.dmp

Filesize
84KB

Download
memory/4888-1-0x0000000002E30000-0x0000000002F30000-memory.dmp

Filesize
1024KB

Download
memory/4888-2-0x0000000002F30000-0x0000000002F43000-memory.dmp

Filesize
76KB

Download
memory/4888-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4888-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4888-12-0x0000000002F30000-0x0000000002F43000-memory.dmp

Filesize
76KB

Download
memory/4888-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads