tofsee | 164f30013a9f0b91c974b2e06e2bd5f850b04d2fcf8d51d47ee8b3cf12e5e011

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 01:26

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General

Target

2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe
Size

11.6MB
MD5

da2967acc7a5340411d229fc740da703
SHA1

34791d2052ae9ae0d86b16fbe95cc3601a231e27
SHA256

164f30013a9f0b91c974b2e06e2bd5f850b04d2fcf8d51d47ee8b3cf12e5e011
SHA512

00568eed6ad8ae23ca064e8e5c79983ca673fc3ce7e7cae944bc04c3a5d6d3f5ccae61de604d4c6386d3723515da1e9bf3864ba93e0bafbd29ff91eb7a2b20b3
SSDEEP

24576:I6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQI:VWdLQk

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\ivtshxvf = "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
2608	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\ivtshxvf\ImagePath = "C:\\Windows\\SysWOW64\\ivtshxvf\\ehnhwhsy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3012	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2584	ehnhwhsy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2584 set thread context of 3012	2584	ehnhwhsy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2672	sc.exe
2800	sc.exe
2808	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_da2967acc7a5340411d229fc740da703_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ehnhwhsy.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2756	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	30
PID 2160 wrote to memory of 2756	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	30
PID 2160 wrote to memory of 2756	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	30
PID 2160 wrote to memory of 2756	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	30
PID 2160 wrote to memory of 2708	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	32
PID 2160 wrote to memory of 2708	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	32
PID 2160 wrote to memory of 2708	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	32
PID 2160 wrote to memory of 2708	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	32
PID 2160 wrote to memory of 2672	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	34
PID 2160 wrote to memory of 2672	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	34
PID 2160 wrote to memory of 2672	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	34
PID 2160 wrote to memory of 2672	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	34
PID 2160 wrote to memory of 2800	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	36
PID 2160 wrote to memory of 2800	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	36
PID 2160 wrote to memory of 2800	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	36
PID 2160 wrote to memory of 2800	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	36
PID 2160 wrote to memory of 2808	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	38
PID 2160 wrote to memory of 2808	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	38
PID 2160 wrote to memory of 2808	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	38
PID 2160 wrote to memory of 2808	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	38
PID 2160 wrote to memory of 2608	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	40
PID 2160 wrote to memory of 2608	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	40
PID 2160 wrote to memory of 2608	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	40
PID 2160 wrote to memory of 2608	2160	2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe	40
PID 2584 wrote to memory of 3012	2584	ehnhwhsy.exe	43
PID 2584 wrote to memory of 3012	2584	ehnhwhsy.exe	43
PID 2584 wrote to memory of 3012	2584	ehnhwhsy.exe	43
PID 2584 wrote to memory of 3012	2584	ehnhwhsy.exe	43
PID 2584 wrote to memory of 3012	2584	ehnhwhsy.exe	43
PID 2584 wrote to memory of 3012	2584	ehnhwhsy.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_da2967acc7a5340411d229fc740da703_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\ivtshxvf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ehnhwhsy.exe" C:\Windows\SysWOW64\ivtshxvf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ivtshxvf binPath= "C:\Windows\SysWOW64\ivtshxvf\ehnhwhsy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ivtshxvf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ivtshxvf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- 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:2608

C:\Windows\SysWOW64\ivtshxvf\ehnhwhsy.exe
C:\Windows\SysWOW64\ivtshxvf\ehnhwhsy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_da2967acc7a5340411d229fc740da703_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584
- 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:3012

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\ehnhwhsy.exe

Filesize
11.2MB

MD5
aa49df99f2aef92588f082ec241adf57

SHA1
1b08ce6766d8cf23dab250088e1970357f6e8a5b

SHA256
e26ed971445618fec9376e0ccd6a74a50686fb576719ed5a5f61131c064e9655

SHA512
53e16dd3487d4d2ff8478171860a6c84da6ffda3a6934332e1cd1a55f9c39a2840c2fdb3d3c04ee219338760cd1789a50d41431f026361137f61ec97b4e4c960

Download Submit
memory/2160-7-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

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

Filesize
84KB

Download
memory/2160-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2160-6-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2160-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2160-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2584-17-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3012-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3012-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3012-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3012-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3012-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads