tofsee | 7690f8c76d9dc0d466502e90e3bdd76a65d686951689cd8206fe4f52c7d8dd15

General

Target

2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe
Size

12.5MB
MD5

63ecc6ae5ead70756bc0cfb4d32a8420
SHA1

8d1f15b231dc76c997f9819a76024570e560b196
SHA256

7690f8c76d9dc0d466502e90e3bdd76a65d686951689cd8206fe4f52c7d8dd15
SHA512

d653d485e465d9e264be720e063d30278957463c04bf46a5876dd1e206fb901afa1ea29c81313757f73452bf4db29dc5d0d605367226b9a0a922472b8b2e5838
SSDEEP

24576:WEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZd:Pfot

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
2124	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\gotvkmic\ImagePath = "C:\\Windows\\SysWOW64\\gotvkmic\\veydvupl.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-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe

Deletes itself 1 IoCs

pid	Process
3080	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4684	veydvupl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4684 set thread context of 3080	4684	veydvupl.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2720	sc.exe
2748	sc.exe
2168	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
5040	968	WerFault.exe	81
4908	4684	WerFault.exe	95

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	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	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	veydvupl.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 2408	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	85
PID 968 wrote to memory of 2408	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	85
PID 968 wrote to memory of 2408	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	85
PID 968 wrote to memory of 1988	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	87
PID 968 wrote to memory of 1988	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	87
PID 968 wrote to memory of 1988	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	87
PID 968 wrote to memory of 2720	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	89
PID 968 wrote to memory of 2720	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	89
PID 968 wrote to memory of 2720	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	89
PID 968 wrote to memory of 2748	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	91
PID 968 wrote to memory of 2748	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	91
PID 968 wrote to memory of 2748	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	91
PID 968 wrote to memory of 2168	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	93
PID 968 wrote to memory of 2168	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	93
PID 968 wrote to memory of 2168	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	93
PID 968 wrote to memory of 2124	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	96
PID 968 wrote to memory of 2124	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	96
PID 968 wrote to memory of 2124	968	2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe	96
PID 4684 wrote to memory of 3080	4684	veydvupl.exe	101
PID 4684 wrote to memory of 3080	4684	veydvupl.exe	101
PID 4684 wrote to memory of 3080	4684	veydvupl.exe	101
PID 4684 wrote to memory of 3080	4684	veydvupl.exe	101
PID 4684 wrote to memory of 3080	4684	veydvupl.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gotvkmic\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\veydvupl.exe" C:\Windows\SysWOW64\gotvkmic\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gotvkmic binPath= "C:\Windows\SysWOW64\gotvkmic\veydvupl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gotvkmic "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gotvkmic
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2168
- 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:2124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 968 -s 1268
  2⤵
  - Program crash
  PID:5040

C:\Windows\SysWOW64\gotvkmic\veydvupl.exe
C:\Windows\SysWOW64\gotvkmic\veydvupl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_63ecc6ae5ead70756bc0cfb4d32a8420_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4684
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4684 -s 508
  2⤵
  - Program crash
  PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 968 -ip 968
1⤵
PID:3096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4684 -ip 4684
1⤵
PID:1280

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\veydvupl.exe

Filesize
11.5MB

MD5
ca7827fd3cd6957e44f7b00bb5cf8cbc

SHA1
a3084be72c80da6f0c6299b7cc2c3772aeb6b4e1

SHA256
e3ba58a03d531803ab167a91113c13b838f4f482ffcafc55260d782c9d30e03f

SHA512
ed3039e37345f22ae57d2813d1f628aa94dbe54a1930c1a847340d8d77d1a80d70baac5a6e499732306b1e0cc3abff1ccc44fe731d5ee43abf7dea083b662e5d

Download Submit
memory/968-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/968-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/968-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/968-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/968-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/968-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/3080-16-0x0000000001060000-0x0000000001075000-memory.dmp

Filesize
84KB

Download
memory/3080-17-0x0000000001060000-0x0000000001075000-memory.dmp

Filesize
84KB

Download
memory/3080-14-0x0000000001060000-0x0000000001075000-memory.dmp

Filesize
84KB

Download
memory/4684-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4684-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4684-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4684-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads