tofsee | 8155d7a833a20b302c9a529ad3e7f7125ad23118c408f862e35536e079575b74

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 23:35

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General

Target

2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe
Size

10.5MB
MD5

5c8ed6be9c8ac04c865c298718f2ccfe
SHA1

ca7ad1ec8dff5c70baa0ef32f485bfe52f340e6a
SHA256

8155d7a833a20b302c9a529ad3e7f7125ad23118c408f862e35536e079575b74
SHA512

37a4873a0e837ce19f465ba1cd52cf053a8ef8c855bfd13b6cbf18a560026e7d5604af28da4eb7938aed935924e07c86955e72072eb005fe3e0db204b28cf6f8
SSDEEP

196608:ZyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/:UXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXv

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\bsoyijw = "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
812	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\bsoyijw\ImagePath = "C:\\Windows\\SysWOW64\\bsoyijw\\usbclhws.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2632	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3036	usbclhws.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3036 set thread context of 2632	3036	usbclhws.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2268	sc.exe
2448	sc.exe
1220	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	usbclhws.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2236	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	28
PID 1716 wrote to memory of 2236	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	28
PID 1716 wrote to memory of 2236	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	28
PID 1716 wrote to memory of 2236	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	28
PID 1716 wrote to memory of 2244	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	30
PID 1716 wrote to memory of 2244	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	30
PID 1716 wrote to memory of 2244	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	30
PID 1716 wrote to memory of 2244	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	30
PID 1716 wrote to memory of 2268	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	32
PID 1716 wrote to memory of 2268	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	32
PID 1716 wrote to memory of 2268	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	32
PID 1716 wrote to memory of 2268	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	32
PID 1716 wrote to memory of 2448	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	34
PID 1716 wrote to memory of 2448	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	34
PID 1716 wrote to memory of 2448	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	34
PID 1716 wrote to memory of 2448	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	34
PID 1716 wrote to memory of 1220	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	36
PID 1716 wrote to memory of 1220	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	36
PID 1716 wrote to memory of 1220	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	36
PID 1716 wrote to memory of 1220	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	36
PID 1716 wrote to memory of 812	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	39
PID 1716 wrote to memory of 812	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	39
PID 1716 wrote to memory of 812	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	39
PID 1716 wrote to memory of 812	1716	2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe	39
PID 3036 wrote to memory of 2632	3036	usbclhws.exe	41
PID 3036 wrote to memory of 2632	3036	usbclhws.exe	41
PID 3036 wrote to memory of 2632	3036	usbclhws.exe	41
PID 3036 wrote to memory of 2632	3036	usbclhws.exe	41
PID 3036 wrote to memory of 2632	3036	usbclhws.exe	41
PID 3036 wrote to memory of 2632	3036	usbclhws.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bsoyijw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\usbclhws.exe" C:\Windows\SysWOW64\bsoyijw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bsoyijw binPath= "C:\Windows\SysWOW64\bsoyijw\usbclhws.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2268
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bsoyijw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bsoyijw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1220
- 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:812

C:\Windows\SysWOW64\bsoyijw\usbclhws.exe
C:\Windows\SysWOW64\bsoyijw\usbclhws.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_5c8ed6be9c8ac04c865c298718f2ccfe_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- 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:2632

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\usbclhws.exe

Filesize
14.2MB

MD5
24237a2789305a89f1896e3ccb0ac2a9

SHA1
2fed506660b4aeb759e788a627a90da167397963

SHA256
14e740ec6ac9be47b3d97db5d5568cc21e49e972e6b2c1d419692cefa6334f27

SHA512
522c7c0f593af9b70169b6d15a89eb5085b6566d63506b5538245044d117755ccf889a72d1b278232549e477834036e208c94fd68eb79d0b215c9399194319d5

Download Submit
memory/1716-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1716-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1716-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1716-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1716-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1716-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2632-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3036-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads