tofsee | 320f07e8a963da09c856d379b523942997bfb14e86da7372f657c935a305f33a

General

Target

2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe
Size

10.1MB
MD5

48fc0a55d58597e8c80253d426a0aed5
SHA1

171c847a8721a589d93f808cd8ed765860c1e80b
SHA256

320f07e8a963da09c856d379b523942997bfb14e86da7372f657c935a305f33a
SHA512

9a4288344974ab75a516b8f9892ad65f97a91aa0af20adb57017245b5756e3208860dbc3ddd71f2a042bb92fdc54ae08314b36f11bcc8b674f3714324d00bb5d
SSDEEP

3072:oLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:lOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
3844	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\dihsvoxu\ImagePath = "C:\\Windows\\SysWOW64\\dihsvoxu\\ilrlalwc.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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe

Deletes itself 1 IoCs

pid	Process
1000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1956	ilrlalwc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1956 set thread context of 1000	1956	ilrlalwc.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
2648	sc.exe
2832	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4736	1376	WerFault.exe	82
3496	1956	WerFault.exe	98

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.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	ilrlalwc.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 1376 wrote to memory of 4884	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	86
PID 1376 wrote to memory of 4884	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	86
PID 1376 wrote to memory of 4884	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	86
PID 1376 wrote to memory of 4472	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	90
PID 1376 wrote to memory of 4472	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	90
PID 1376 wrote to memory of 4472	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	90
PID 1376 wrote to memory of 1036	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	92
PID 1376 wrote to memory of 1036	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	92
PID 1376 wrote to memory of 1036	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	92
PID 1376 wrote to memory of 2648	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	94
PID 1376 wrote to memory of 2648	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	94
PID 1376 wrote to memory of 2648	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	94
PID 1376 wrote to memory of 2832	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	96
PID 1376 wrote to memory of 2832	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	96
PID 1376 wrote to memory of 2832	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	96
PID 1376 wrote to memory of 3844	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	99
PID 1376 wrote to memory of 3844	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	99
PID 1376 wrote to memory of 3844	1376	2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe	99
PID 1956 wrote to memory of 1000	1956	ilrlalwc.exe	104
PID 1956 wrote to memory of 1000	1956	ilrlalwc.exe	104
PID 1956 wrote to memory of 1000	1956	ilrlalwc.exe	104
PID 1956 wrote to memory of 1000	1956	ilrlalwc.exe	104
PID 1956 wrote to memory of 1000	1956	ilrlalwc.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dihsvoxu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ilrlalwc.exe" C:\Windows\SysWOW64\dihsvoxu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dihsvoxu binPath= "C:\Windows\SysWOW64\dihsvoxu\ilrlalwc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dihsvoxu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dihsvoxu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- 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:3844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 1036
  2⤵
  - Program crash
  PID:4736

C:\Windows\SysWOW64\dihsvoxu\ilrlalwc.exe
C:\Windows\SysWOW64\dihsvoxu\ilrlalwc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_48fc0a55d58597e8c80253d426a0aed5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 520
  2⤵
  - Program crash
  PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1376 -ip 1376
1⤵
PID:1628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1956 -ip 1956
1⤵
PID:2208

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\ilrlalwc.exe

Filesize
14.7MB

MD5
6f303a357c9a17389e0bbda915946851

SHA1
d4a4f91ea8a2a718aa5316b79573221ce485c5ca

SHA256
e4cfb5aaa41d69bf2d095c756608af76f0b8e0789827e80762d825ec13664eb6

SHA512
4c9fe7e7b778de858c0c34dd72df9407adae3dcdb0334ef20421a6cbb77a89a4ee0c3cc9f734b678b05c3ae5912cf7366205cabbbaeaee169970a62610a7eafb

Download Submit
memory/1000-14-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/1000-17-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/1000-16-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/1376-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1376-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1376-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/1376-8-0x00000000004D0000-0x00000000004E3000-memory.dmp

Filesize
76KB

Download
memory/1376-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1376-2-0x00000000004D0000-0x00000000004E3000-memory.dmp

Filesize
76KB

Download
memory/1956-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1956-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1956-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1956-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads