tofsee | 20d5caddfab0711c8b6916d639892872c47afc695ec162f31fd54dcf7c8727be

General

Target

2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe
Size

12.2MB
MD5

4f9d37fcf1448b40a845b6d0ee2aad6e
SHA1

c7c20cc38a71fa9820a922c42f48726895ae078a
SHA256

20d5caddfab0711c8b6916d639892872c47afc695ec162f31fd54dcf7c8727be
SHA512

93093f7b2f426dc038bf9af3837302adbe50ec04d5e80ce555e08abc3c93309ae28634d1efba8ce2eb26051c0005e7bca52c00876799e53014aa8459cccf5d44
SSDEEP

3072:SLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:7OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4604	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\adxnerww\ImagePath = "C:\\Windows\\SysWOW64\\adxnerww\\wzfzozkq.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-1-5-21-805940606-1861219160-370298170-1000\Control Panel\International\Geo\Nation	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe

Deletes itself 1 IoCs

pid	Process
2060	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4396	wzfzozkq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4396 set thread context of 2060	4396	wzfzozkq.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3416	sc.exe
2040	sc.exe
4772	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
4024	4804	WerFault.exe	83
404	4396	WerFault.exe	96

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	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	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_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	wzfzozkq.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 4908	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	86
PID 4804 wrote to memory of 4908	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	86
PID 4804 wrote to memory of 4908	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	86
PID 4804 wrote to memory of 4044	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	88
PID 4804 wrote to memory of 4044	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	88
PID 4804 wrote to memory of 4044	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	88
PID 4804 wrote to memory of 2040	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	90
PID 4804 wrote to memory of 2040	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	90
PID 4804 wrote to memory of 2040	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	90
PID 4804 wrote to memory of 4772	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	92
PID 4804 wrote to memory of 4772	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	92
PID 4804 wrote to memory of 4772	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	92
PID 4804 wrote to memory of 3416	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	94
PID 4804 wrote to memory of 3416	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	94
PID 4804 wrote to memory of 3416	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	94
PID 4804 wrote to memory of 4604	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	97
PID 4804 wrote to memory of 4604	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	97
PID 4804 wrote to memory of 4604	4804	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	97
PID 4396 wrote to memory of 2060	4396	wzfzozkq.exe	102
PID 4396 wrote to memory of 2060	4396	wzfzozkq.exe	102
PID 4396 wrote to memory of 2060	4396	wzfzozkq.exe	102
PID 4396 wrote to memory of 2060	4396	wzfzozkq.exe	102
PID 4396 wrote to memory of 2060	4396	wzfzozkq.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\adxnerww\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4908
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wzfzozkq.exe" C:\Windows\SysWOW64\adxnerww\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create adxnerww binPath= "C:\Windows\SysWOW64\adxnerww\wzfzozkq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description adxnerww "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start adxnerww
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3416
- 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:4604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 1188
  2⤵
  - Program crash
  PID:4024

C:\Windows\SysWOW64\adxnerww\wzfzozkq.exe
C:\Windows\SysWOW64\adxnerww\wzfzozkq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 512
  2⤵
  - Program crash
  PID:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4804 -ip 4804
1⤵
PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4396 -ip 4396
1⤵
PID:1888

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\wzfzozkq.exe

Filesize
11.6MB

MD5
cb5ffb5a7666fb127361284e32f8586b

SHA1
aec996056d34c6fa5c219853d9e4cb266cfd0ae7

SHA256
0290c639eb0d865c87ac9a56ece131ce0f06f8a6e23b698c6d16edd4359a4eb8

SHA512
7cb985b3ca672bff87b23998c4ebf26a19477dcf061a01388c9c6758d46745dd3a7d1e3f7eb9e71e3d7c8746ed296a0a4664c9842b7235267e41d2c8c4098f6c

Download Submit
memory/2060-14-0x0000000000B60000-0x0000000000B75000-memory.dmp

Filesize
84KB

Download
memory/2060-17-0x0000000000B60000-0x0000000000B75000-memory.dmp

Filesize
84KB

Download
memory/2060-16-0x0000000000B60000-0x0000000000B75000-memory.dmp

Filesize
84KB

Download
memory/4396-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4396-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4396-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4396-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4804-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4804-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4804-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/4804-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4804-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4804-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads