tofsee | 0a6699f77db01913025c624843d40f6dc9904d75970a35fa7d8ff9a9d6dfdf99

General

Target

2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe
Size

13.2MB
MD5

b02add27ccd94eec5f3bbb0b695a5d57
SHA1

e5c33b3bd8c65dec6591a5957f24722ee83d76c1
SHA256

0a6699f77db01913025c624843d40f6dc9904d75970a35fa7d8ff9a9d6dfdf99
SHA512

82cecf03904f6acc6046180cb299e2abf8c645c1c990b3f799c3f2503d9b72e42e84e153c1b708ea30695e6d34a6cd031edf87b2a160cfef890ed39fdcb9edfc
SSDEEP

24576:46WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ3:FWdLQk

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2732	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\ryeuxoqn\ImagePath = "C:\\Windows\\SysWOW64\\ryeuxoqn\\disnhtqs.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe

Deletes itself 1 IoCs

pid	Process
3704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3356	disnhtqs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3356 set thread context of 3704	3356	disnhtqs.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3124	sc.exe
4464	sc.exe
4500	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
5016	1180	WerFault.exe	81
1828	3356	WerFault.exe	92

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	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_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	netsh.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	disnhtqs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 4608	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	82
PID 1180 wrote to memory of 4608	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	82
PID 1180 wrote to memory of 4608	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	82
PID 1180 wrote to memory of 3516	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	84
PID 1180 wrote to memory of 3516	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	84
PID 1180 wrote to memory of 3516	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	84
PID 1180 wrote to memory of 4464	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	86
PID 1180 wrote to memory of 4464	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	86
PID 1180 wrote to memory of 4464	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	86
PID 1180 wrote to memory of 4500	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	88
PID 1180 wrote to memory of 4500	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	88
PID 1180 wrote to memory of 4500	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	88
PID 1180 wrote to memory of 3124	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	90
PID 1180 wrote to memory of 3124	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	90
PID 1180 wrote to memory of 3124	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	90
PID 1180 wrote to memory of 2732	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	93
PID 1180 wrote to memory of 2732	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	93
PID 1180 wrote to memory of 2732	1180	2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe	93
PID 3356 wrote to memory of 3704	3356	disnhtqs.exe	98
PID 3356 wrote to memory of 3704	3356	disnhtqs.exe	98
PID 3356 wrote to memory of 3704	3356	disnhtqs.exe	98
PID 3356 wrote to memory of 3704	3356	disnhtqs.exe	98
PID 3356 wrote to memory of 3704	3356	disnhtqs.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ryeuxoqn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4608
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\disnhtqs.exe" C:\Windows\SysWOW64\ryeuxoqn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ryeuxoqn binPath= "C:\Windows\SysWOW64\ryeuxoqn\disnhtqs.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4464
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ryeuxoqn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4500
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ryeuxoqn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3124
- 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:2732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1180 -s 1028
  2⤵
  - Program crash
  PID:5016

C:\Windows\SysWOW64\ryeuxoqn\disnhtqs.exe
C:\Windows\SysWOW64\ryeuxoqn\disnhtqs.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-19_b02add27ccd94eec5f3bbb0b695a5d57_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3356
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3356 -s 516
  2⤵
  - Program crash
  PID:1828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1180 -ip 1180
1⤵
PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3356 -ip 3356
1⤵
PID:928

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\disnhtqs.exe

Filesize
11.5MB

MD5
e3189e54972938db3b54c88822f37ae7

SHA1
fbbd284a5746cd17a95f528a8864c1e498b6a48a

SHA256
ea4a8b089dc1c056dc5c83e45fbc6abb5b0ccda697c6f11f7a8e0c3e667d4ed9

SHA512
36fd88dae2a78d2dc81a8a8b95dfc20349ecd3cc4d0857544a739b16876e18a12d1f519bd8c01ed4b011c9d1f149f6a865bccbb80adf931220823d2b9c2d2dc3

Download Submit
memory/1180-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1180-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1180-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/1180-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1180-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/1180-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/3356-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3356-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3356-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3356-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3704-14-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/3704-16-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/3704-18-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads