tofsee | 4d30e4f325b8b087db2224633cfaee430cd2aaa42c1dde8532e45906ab087e51

Analysis

max time kernel
145s
max time network
119s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 21:19

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General

Target

2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe
Size

13.6MB
MD5

9680b32c7fe1e783dd87dd9c0c82b5d2
SHA1

6922e45f8c4cab77ec15e36a58340dd54718f813
SHA256

4d30e4f325b8b087db2224633cfaee430cd2aaa42c1dde8532e45906ab087e51
SHA512

17ba622318af9bdff22d92f52706c89d15b33f0f7741731cde9f3449ec245582c61a9299067192153a1194f853bf0ce1999912d3fc6f3355ffcbab2df87cc731
SSDEEP

24576:t/0dLk3X4ICvkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkn:F0dLk3oh

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\kssksagd = "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
2644	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\kssksagd\ImagePath = "C:\\Windows\\SysWOW64\\kssksagd\\ygvzmktt.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2020	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2612	ygvzmktt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2612 set thread context of 2020	2612	ygvzmktt.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2812	sc.exe
2348	sc.exe
2940	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ygvzmktt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2860	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	31
PID 2708 wrote to memory of 2860	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	31
PID 2708 wrote to memory of 2860	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	31
PID 2708 wrote to memory of 2860	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	31
PID 2708 wrote to memory of 2736	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	33
PID 2708 wrote to memory of 2736	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	33
PID 2708 wrote to memory of 2736	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	33
PID 2708 wrote to memory of 2736	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	33
PID 2708 wrote to memory of 2812	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	35
PID 2708 wrote to memory of 2812	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	35
PID 2708 wrote to memory of 2812	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	35
PID 2708 wrote to memory of 2812	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	35
PID 2708 wrote to memory of 2348	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	37
PID 2708 wrote to memory of 2348	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	37
PID 2708 wrote to memory of 2348	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	37
PID 2708 wrote to memory of 2348	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	37
PID 2708 wrote to memory of 2940	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	39
PID 2708 wrote to memory of 2940	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	39
PID 2708 wrote to memory of 2940	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	39
PID 2708 wrote to memory of 2940	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	39
PID 2612 wrote to memory of 2020	2612	ygvzmktt.exe	42
PID 2612 wrote to memory of 2020	2612	ygvzmktt.exe	42
PID 2612 wrote to memory of 2020	2612	ygvzmktt.exe	42
PID 2612 wrote to memory of 2020	2612	ygvzmktt.exe	42
PID 2612 wrote to memory of 2020	2612	ygvzmktt.exe	42
PID 2612 wrote to memory of 2020	2612	ygvzmktt.exe	42
PID 2708 wrote to memory of 2644	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	43
PID 2708 wrote to memory of 2644	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	43
PID 2708 wrote to memory of 2644	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	43
PID 2708 wrote to memory of 2644	2708	2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kssksagd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ygvzmktt.exe" C:\Windows\SysWOW64\kssksagd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kssksagd binPath= "C:\Windows\SysWOW64\kssksagd\ygvzmktt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kssksagd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kssksagd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- 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:2644

C:\Windows\SysWOW64\kssksagd\ygvzmktt.exe
C:\Windows\SysWOW64\kssksagd\ygvzmktt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_9680b32c7fe1e783dd87dd9c0c82b5d2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2612
- 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:2020

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\ygvzmktt.exe

Filesize
12.6MB

MD5
3bf40522a3d717350cc8953961bd277e

SHA1
d0a700f5c99fdad9b25213b766738f4bf52b7677

SHA256
a067852874db7d7ea35914ca96d7dbd91e0b3d9317f59a814f687f64ce7b2c68

SHA512
213eb41b802bc193ae2d15084784d920b574582b369f7aca38bcce01f652654dd214513e0fbe997a90571e48403e24e5529a40183905fbdaec4c629c9f890b3a

Download Submit
memory/2020-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2020-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2020-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2020-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2020-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2612-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2708-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2708-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-1-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download
memory/2708-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2708-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2708-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-17-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads