tofsee | 164f30013a9f0b91c974b2e06e2bd5f850b04d2fcf8d51d47ee8b3cf12e5e011

General

Target

2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe
Size

11.6MB
MD5

da2967acc7a5340411d229fc740da703
SHA1

34791d2052ae9ae0d86b16fbe95cc3601a231e27
SHA256

164f30013a9f0b91c974b2e06e2bd5f850b04d2fcf8d51d47ee8b3cf12e5e011
SHA512

00568eed6ad8ae23ca064e8e5c79983ca673fc3ce7e7cae944bc04c3a5d6d3f5ccae61de604d4c6386d3723515da1e9bf3864ba93e0bafbd29ff91eb7a2b20b3
SSDEEP

24576:I6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQI:VWdLQk

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
4260	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\mliyoqnf\ImagePath = "C:\\Windows\\SysWOW64\\mliyoqnf\\fioixitz.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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe

Deletes itself 1 IoCs

pid	Process
756	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4076	fioixitz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4076 set thread context of 756	4076	fioixitz.exe	115

Launches sc.exe 3 IoCs

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

pid	Process
3832	sc.exe
2948	sc.exe
1036	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
2380	2484	WerFault.exe	82
2096	4076	WerFault.exe	106

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	fioixitz.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 4624	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	94
PID 2484 wrote to memory of 4624	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	94
PID 2484 wrote to memory of 4624	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	94
PID 2484 wrote to memory of 2340	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	96
PID 2484 wrote to memory of 2340	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	96
PID 2484 wrote to memory of 2340	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	96
PID 2484 wrote to memory of 3832	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	98
PID 2484 wrote to memory of 3832	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	98
PID 2484 wrote to memory of 3832	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	98
PID 2484 wrote to memory of 2948	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	100
PID 2484 wrote to memory of 2948	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	100
PID 2484 wrote to memory of 2948	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	100
PID 2484 wrote to memory of 1036	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	104
PID 2484 wrote to memory of 1036	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	104
PID 2484 wrote to memory of 1036	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	104
PID 2484 wrote to memory of 4260	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	107
PID 2484 wrote to memory of 4260	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	107
PID 2484 wrote to memory of 4260	2484	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	107
PID 4076 wrote to memory of 756	4076	fioixitz.exe	115
PID 4076 wrote to memory of 756	4076	fioixitz.exe	115
PID 4076 wrote to memory of 756	4076	fioixitz.exe	115
PID 4076 wrote to memory of 756	4076	fioixitz.exe	115
PID 4076 wrote to memory of 756	4076	fioixitz.exe	115

C:\Users\Admin\AppData\Local\Temp\2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mliyoqnf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fioixitz.exe" C:\Windows\SysWOW64\mliyoqnf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mliyoqnf binPath= "C:\Windows\SysWOW64\mliyoqnf\fioixitz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mliyoqnf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mliyoqnf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1036
- 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:4260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 592
  2⤵
  - Program crash
  PID:2380

C:\Windows\SysWOW64\mliyoqnf\fioixitz.exe
C:\Windows\SysWOW64\mliyoqnf\fioixitz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4076 -s 528
  2⤵
  - Program crash
  PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2484 -ip 2484
1⤵
PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4076 -ip 4076
1⤵
PID:956

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.2MB

MD5
b638a5b35a400dca6d1da3da14f7b93d

SHA1
63632bd86e92887062be3c432c101627d361a0d2

SHA256
276e2ff79ece1d98721e86bf0f7bd42f7e66c44a748fb27768922bbcbba6426a

SHA512
7393d239808f99c0059025fb42181cedef382b15cf9b6e986f1a08b97c5e0ad25e80f445747c0b2c07eeb5007cd8b6cf70192382192e5e4bc9b917fe826bf883

Download Submit
memory/756-14-0x00000000009A0000-0x00000000009B5000-memory.dmp

Filesize
84KB

Download
memory/756-17-0x00000000009A0000-0x00000000009B5000-memory.dmp

Filesize
84KB

Download
memory/756-16-0x00000000009A0000-0x00000000009B5000-memory.dmp

Filesize
84KB

Download
memory/2484-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2484-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2484-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/2484-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2484-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2484-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4076-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4076-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4076-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4076-18-0x0000000000400000-0x000000000044F000-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