tofsee | 7415fec52dfd7122aa4616a22fa1731a5c7039da44a3f073f75488c9f3d9f5e5

Analysis

max time kernel
144s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 20:31

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General

Target

2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe
Size

14.1MB
MD5

e5f1bb8c7a7ed1461b9a5ddfb21378be
SHA1

e49416e4651f8ba468c2f8e8b67d49e1ad5de6a8
SHA256

7415fec52dfd7122aa4616a22fa1731a5c7039da44a3f073f75488c9f3d9f5e5
SHA512

56c3c99f2e7f209bb85d08795e3589a63409175bab7b149b7eca125426740c7be40b14f90f0539c49ca21dfd1e49cb92953022d7f06b73df5709dcddb18c8a00
SSDEEP

24576:3EfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ1:Ufot

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\trbddpnl = "0"	svchost.exe

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
2708	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\trbddpnl\ImagePath = "C:\\Windows\\SysWOW64\\trbddpnl\\zttkvevx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2760	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2752	zttkvevx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2760	2752	zttkvevx.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
3008	sc.exe
2676	sc.exe
2824	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

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zttkvevx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_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 30 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2912	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	31
PID 2160 wrote to memory of 2912	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	31
PID 2160 wrote to memory of 2912	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	31
PID 2160 wrote to memory of 2912	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	31
PID 2160 wrote to memory of 3016	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	33
PID 2160 wrote to memory of 3016	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	33
PID 2160 wrote to memory of 3016	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	33
PID 2160 wrote to memory of 3016	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	33
PID 2160 wrote to memory of 3008	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	35
PID 2160 wrote to memory of 3008	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	35
PID 2160 wrote to memory of 3008	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	35
PID 2160 wrote to memory of 3008	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	35
PID 2160 wrote to memory of 2676	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	37
PID 2160 wrote to memory of 2676	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	37
PID 2160 wrote to memory of 2676	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	37
PID 2160 wrote to memory of 2676	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	37
PID 2160 wrote to memory of 2824	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	39
PID 2160 wrote to memory of 2824	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	39
PID 2160 wrote to memory of 2824	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	39
PID 2160 wrote to memory of 2824	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	39
PID 2752 wrote to memory of 2760	2752	zttkvevx.exe	42
PID 2752 wrote to memory of 2760	2752	zttkvevx.exe	42
PID 2752 wrote to memory of 2760	2752	zttkvevx.exe	42
PID 2752 wrote to memory of 2760	2752	zttkvevx.exe	42
PID 2752 wrote to memory of 2760	2752	zttkvevx.exe	42
PID 2752 wrote to memory of 2760	2752	zttkvevx.exe	42
PID 2160 wrote to memory of 2708	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	43
PID 2160 wrote to memory of 2708	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	43
PID 2160 wrote to memory of 2708	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	43
PID 2160 wrote to memory of 2708	2160	2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\trbddpnl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zttkvevx.exe" C:\Windows\SysWOW64\trbddpnl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create trbddpnl binPath= "C:\Windows\SysWOW64\trbddpnl\zttkvevx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description trbddpnl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start trbddpnl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2824
- 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:2708

C:\Windows\SysWOW64\trbddpnl\zttkvevx.exe
C:\Windows\SysWOW64\trbddpnl\zttkvevx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e5f1bb8c7a7ed1461b9a5ddfb21378be_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2752
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\zttkvevx.exe

Filesize
10.7MB

MD5
4d7ab05888fe4ab098b37d84928e3af0

SHA1
f39330b43bbc87b42e7c473be5a859f5c36a52f1

SHA256
00c08533d9bfc2d5cc7a582d116732f9f9df32113dc65a4b63660d559b1ae09d

SHA512
37398fceba6e3a3a409fac89e2c484c765feab3b30343c33719fd8f00b961ebdf3a699f297dc200ee4019ba7ee9901d4b55d0724df5f68ff722c3e880d206030

Download Submit
memory/2160-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2160-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2160-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2160-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2160-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2160-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2752-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2760-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads