tofsee | 0bc64c4228a8a04bc7e86cbe66739cd23a4125fc9b732fcf4c9d71c645343006

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:16

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General

Target

2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe
Size

13.5MB
MD5

6df18a8d2707d7eb2d912e8fb6391b11
SHA1

82c745888941614f23554b0b36d0d4e9054188b5
SHA256

0bc64c4228a8a04bc7e86cbe66739cd23a4125fc9b732fcf4c9d71c645343006
SHA512

91a61750cf0c279c02963f22bf637738c3d6d0113a0d73b14f346e059315edc16c046ee28f1eb016d88aca8da3a73c64413f30cb3fd472dd3f12976a99e1b560
SSDEEP

24576:mEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ9:ffot

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\zmudlzln = "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
2612	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\zmudlzln\ImagePath = "C:\\Windows\\SysWOW64\\zmudlzln\\sxhcwifh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2712	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2916	sxhcwifh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2916 set thread context of 2712	2916	sxhcwifh.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2088	sc.exe
2040	sc.exe
2864	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

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	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sxhcwifh.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	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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2384	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	30
PID 2104 wrote to memory of 2384	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	30
PID 2104 wrote to memory of 2384	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	30
PID 2104 wrote to memory of 2384	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	30
PID 2104 wrote to memory of 2116	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	32
PID 2104 wrote to memory of 2116	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	32
PID 2104 wrote to memory of 2116	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	32
PID 2104 wrote to memory of 2116	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	32
PID 2104 wrote to memory of 2088	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	34
PID 2104 wrote to memory of 2088	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	34
PID 2104 wrote to memory of 2088	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	34
PID 2104 wrote to memory of 2088	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	34
PID 2104 wrote to memory of 2040	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	36
PID 2104 wrote to memory of 2040	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	36
PID 2104 wrote to memory of 2040	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	36
PID 2104 wrote to memory of 2040	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	36
PID 2104 wrote to memory of 2864	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	38
PID 2104 wrote to memory of 2864	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	38
PID 2104 wrote to memory of 2864	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	38
PID 2104 wrote to memory of 2864	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	38
PID 2916 wrote to memory of 2712	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2712	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2712	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2712	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2712	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2712	2916	sxhcwifh.exe	41
PID 2104 wrote to memory of 2612	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	42
PID 2104 wrote to memory of 2612	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	42
PID 2104 wrote to memory of 2612	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	42
PID 2104 wrote to memory of 2612	2104	2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zmudlzln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sxhcwifh.exe" C:\Windows\SysWOW64\zmudlzln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zmudlzln binPath= "C:\Windows\SysWOW64\zmudlzln\sxhcwifh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zmudlzln "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zmudlzln
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- 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:2612

C:\Windows\SysWOW64\zmudlzln\sxhcwifh.exe
C:\Windows\SysWOW64\zmudlzln\sxhcwifh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_6df18a8d2707d7eb2d912e8fb6391b11_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- 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:2712

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\sxhcwifh.exe

Filesize
14.1MB

MD5
d9220ab6ffe73d57bcd95c70e66ab1fa

SHA1
f3ae1c2de31951e98f12a05c529d66b7d5f3769f

SHA256
46922f730e24931f360ca58fdc874dc3144fa3fadd303246c2738ff08288a34e

SHA512
fab43729739ef98a0209a9d5a97b48d9414f0cb0a061e801cd238060fffafd4096dc382e115276ac197b142ea53be2eae8080cc3e9392ce6645d6e701397ca2e

Download Submit
memory/2104-15-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2104-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2104-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2104-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2104-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2104-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2712-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2712-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-8-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2712-17-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2712-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2916-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads