tofsee | d17c61ddf9e340d1c5f213aa1fa64950b786036e143c2d098020c16a49d5d12f

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 20:43

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General

Target

2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe
Size

10.2MB
MD5

f3d769498f02e8f68fb85444b4893068
SHA1

39bc846e09c574a21dc5809a3a78a6232f1ef96d
SHA256

d17c61ddf9e340d1c5f213aa1fa64950b786036e143c2d098020c16a49d5d12f
SHA512

43fe0ec173e671bdf992f56775b4c39988a26c76dd7f545f87b4567212437a1cbdf306800bb585626dd319c7bc6ef38e3e7a900480796f0b95284c3031a0eb9f
SSDEEP

24576:xEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZx:Kfot

Score

10^/10

tofsee discovery evasion 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

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\wernfxfo = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2568	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\wernfxfo\ImagePath = "C:\\Windows\\SysWOW64\\wernfxfo\\kpzuoaxz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2368	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2552	kpzuoaxz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2552 set thread context of 2368	2552	kpzuoaxz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2804	sc.exe
2940	sc.exe
2720	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	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kpzuoaxz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 2412 wrote to memory of 2816	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	30
PID 2412 wrote to memory of 2816	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	30
PID 2412 wrote to memory of 2816	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	30
PID 2412 wrote to memory of 2816	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	30
PID 2412 wrote to memory of 2976	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	32
PID 2412 wrote to memory of 2976	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	32
PID 2412 wrote to memory of 2976	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	32
PID 2412 wrote to memory of 2976	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	32
PID 2412 wrote to memory of 2804	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	34
PID 2412 wrote to memory of 2804	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	34
PID 2412 wrote to memory of 2804	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	34
PID 2412 wrote to memory of 2804	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	34
PID 2412 wrote to memory of 2940	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	36
PID 2412 wrote to memory of 2940	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	36
PID 2412 wrote to memory of 2940	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	36
PID 2412 wrote to memory of 2940	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	36
PID 2412 wrote to memory of 2720	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	38
PID 2412 wrote to memory of 2720	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	38
PID 2412 wrote to memory of 2720	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	38
PID 2412 wrote to memory of 2720	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	38
PID 2412 wrote to memory of 2568	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	41
PID 2412 wrote to memory of 2568	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	41
PID 2412 wrote to memory of 2568	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	41
PID 2412 wrote to memory of 2568	2412	2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe	41
PID 2552 wrote to memory of 2368	2552	kpzuoaxz.exe	43
PID 2552 wrote to memory of 2368	2552	kpzuoaxz.exe	43
PID 2552 wrote to memory of 2368	2552	kpzuoaxz.exe	43
PID 2552 wrote to memory of 2368	2552	kpzuoaxz.exe	43
PID 2552 wrote to memory of 2368	2552	kpzuoaxz.exe	43
PID 2552 wrote to memory of 2368	2552	kpzuoaxz.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wernfxfo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kpzuoaxz.exe" C:\Windows\SysWOW64\wernfxfo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wernfxfo binPath= "C:\Windows\SysWOW64\wernfxfo\kpzuoaxz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wernfxfo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wernfxfo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- 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:2568

C:\Windows\SysWOW64\wernfxfo\kpzuoaxz.exe
C:\Windows\SysWOW64\wernfxfo\kpzuoaxz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_f3d769498f02e8f68fb85444b4893068_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- 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:2368

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\kpzuoaxz.exe

Filesize
14.9MB

MD5
7f6ed30648a0074324c49b747852f06e

SHA1
16e9b993497aa9a79ab9fa2575964e5c9f67da59

SHA256
ba2432a94fb01a0889d6414d026f3600dd0cb7b6edf51ce0d727826c9686ca1f

SHA512
8183bd1daa5abc82838820126b2278ca2a2d4c9ee549e6817492019f248cdee659d81947ab646044dd0e8736f53dbd1e6cd7a6af0753adf732ce890270804ecb

Download Submit
memory/2368-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2368-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2368-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2368-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2368-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2412-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2412-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2412-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2412-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2412-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2412-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2552-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads