tofsee | 8bb9c66cc73b87c00009d7242459b2076fe1f3abade22c59acda2ec7d6b84f4e

General

Target

2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe
Size

13.3MB
MD5

aa8d578acf6c92b0968b8c7dbf672948
SHA1

0fa983431334849b7e4cef6ed327a8c128f25119
SHA256

8bb9c66cc73b87c00009d7242459b2076fe1f3abade22c59acda2ec7d6b84f4e
SHA512

30d04bd9e56ef823396d6b06d3b235b18f237da42b12585f36054eb3c62bfbc6f90bc411a1906a371410028b62d6b4711808edd32374ddff57fb6ead068ed8ae
SSDEEP

24576:86WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ4:RWdLQk

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
3980	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\vaprwior\ImagePath = "C:\\Windows\\SysWOW64\\vaprwior\\tgspivak.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-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe

Deletes itself 1 IoCs

pid	Process
3940	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4480	tgspivak.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4480 set thread context of 3940	4480	tgspivak.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3848	sc.exe
1136	sc.exe
3464	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
3572	2488	WerFault.exe	84
2664	4480	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	sc.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	tgspivak.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 1744	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	85
PID 2488 wrote to memory of 1744	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	85
PID 2488 wrote to memory of 1744	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	85
PID 2488 wrote to memory of 2816	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	87
PID 2488 wrote to memory of 2816	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	87
PID 2488 wrote to memory of 2816	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	87
PID 2488 wrote to memory of 3848	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	89
PID 2488 wrote to memory of 3848	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	89
PID 2488 wrote to memory of 3848	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	89
PID 2488 wrote to memory of 1136	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	91
PID 2488 wrote to memory of 1136	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	91
PID 2488 wrote to memory of 1136	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	91
PID 2488 wrote to memory of 3464	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	93
PID 2488 wrote to memory of 3464	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	93
PID 2488 wrote to memory of 3464	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	93
PID 2488 wrote to memory of 3980	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	96
PID 2488 wrote to memory of 3980	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	96
PID 2488 wrote to memory of 3980	2488	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	96
PID 4480 wrote to memory of 3940	4480	tgspivak.exe	101
PID 4480 wrote to memory of 3940	4480	tgspivak.exe	101
PID 4480 wrote to memory of 3940	4480	tgspivak.exe	101
PID 4480 wrote to memory of 3940	4480	tgspivak.exe	101
PID 4480 wrote to memory of 3940	4480	tgspivak.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vaprwior\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tgspivak.exe" C:\Windows\SysWOW64\vaprwior\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vaprwior binPath= "C:\Windows\SysWOW64\vaprwior\tgspivak.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vaprwior "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vaprwior
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3464
- 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:3980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 668
  2⤵
  - Program crash
  PID:3572

C:\Windows\SysWOW64\vaprwior\tgspivak.exe
C:\Windows\SysWOW64\vaprwior\tgspivak.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 532
  2⤵
  - Program crash
  PID:2664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2488 -ip 2488
1⤵
PID:1168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4480 -ip 4480
1⤵
PID:2028

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\tgspivak.exe

Filesize
13.8MB

MD5
10468a9b7c76ba28a597f138cf7a0728

SHA1
191af6b95e202738883d79e773f09eeaff93389c

SHA256
d8d83e0f2944199ae30cbea6b85e888366798a24b37b7fe4e64612f5710ff2eb

SHA512
eee6d2bc76ac091e6a3589963c658c59dcb087152382643eddf302dd29a7f1d158accbb23aa6adbe3150a1dd64859a5a54bf94bfd513dd16bb6a763ef3b4c759

Download Submit
memory/2488-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2488-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2488-2-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/2488-8-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/2488-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2488-1-0x00000000007F0000-0x00000000008F0000-memory.dmp

Filesize
1024KB

Download
memory/3940-14-0x00000000005A0000-0x00000000005B5000-memory.dmp

Filesize
84KB

Download
memory/3940-16-0x00000000005A0000-0x00000000005B5000-memory.dmp

Filesize
84KB

Download
memory/3940-17-0x00000000005A0000-0x00000000005B5000-memory.dmp

Filesize
84KB

Download
memory/4480-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4480-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4480-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4480-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads