tofsee | 4de67356791f43cec40212ccad04c7d1bf0a3b74d3aa1a5b904d13fb1750ed77

Analysis

max time kernel
144s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-01-2025 18:39

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General

Target

2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe
Size

11.5MB
MD5

301e2706dc1fd67d639f69376a24a320
SHA1

caba62563befc86a8762929a38fdd3f5c346eb48
SHA256

4de67356791f43cec40212ccad04c7d1bf0a3b74d3aa1a5b904d13fb1750ed77
SHA512

06fb8e2a90f93e6068a5d4b9620dc759783d9b6e13f119b63b00706c49b31dcbbe5c7613efedf5c522c11531a1e67970486ff017857a12657b404b18245d86c9
SSDEEP

3072:mLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:POMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\kowwzdzg = "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
1892	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\kowwzdzg\ImagePath = "C:\\Windows\\SysWOW64\\kowwzdzg\\zttkvevx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2916	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2812	zttkvevx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2812 set thread context of 2916	2812	zttkvevx.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2656	sc.exe
3008	sc.exe
2976	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zttkvevx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2724	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	30
PID 2076 wrote to memory of 2724	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	30
PID 2076 wrote to memory of 2724	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	30
PID 2076 wrote to memory of 2724	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	30
PID 2076 wrote to memory of 2156	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	32
PID 2076 wrote to memory of 2156	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	32
PID 2076 wrote to memory of 2156	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	32
PID 2076 wrote to memory of 2156	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	32
PID 2076 wrote to memory of 2656	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	34
PID 2076 wrote to memory of 2656	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	34
PID 2076 wrote to memory of 2656	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	34
PID 2076 wrote to memory of 2656	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	34
PID 2076 wrote to memory of 3008	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	36
PID 2076 wrote to memory of 3008	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	36
PID 2076 wrote to memory of 3008	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	36
PID 2076 wrote to memory of 3008	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	36
PID 2076 wrote to memory of 2976	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	38
PID 2076 wrote to memory of 2976	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	38
PID 2076 wrote to memory of 2976	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	38
PID 2076 wrote to memory of 2976	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	38
PID 2076 wrote to memory of 1892	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	40
PID 2076 wrote to memory of 1892	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	40
PID 2076 wrote to memory of 1892	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	40
PID 2076 wrote to memory of 1892	2076	2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe	40
PID 2812 wrote to memory of 2916	2812	zttkvevx.exe	43
PID 2812 wrote to memory of 2916	2812	zttkvevx.exe	43
PID 2812 wrote to memory of 2916	2812	zttkvevx.exe	43
PID 2812 wrote to memory of 2916	2812	zttkvevx.exe	43
PID 2812 wrote to memory of 2916	2812	zttkvevx.exe	43
PID 2812 wrote to memory of 2916	2812	zttkvevx.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kowwzdzg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zttkvevx.exe" C:\Windows\SysWOW64\kowwzdzg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kowwzdzg binPath= "C:\Windows\SysWOW64\kowwzdzg\zttkvevx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kowwzdzg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kowwzdzg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2976
- 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:1892

C:\Windows\SysWOW64\kowwzdzg\zttkvevx.exe
C:\Windows\SysWOW64\kowwzdzg\zttkvevx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_301e2706dc1fd67d639f69376a24a320_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812
- 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:2916

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\zttkvevx.exe

Filesize
14.0MB

MD5
d4a0fe19b153f2c5d400705eac4f5a35

SHA1
d1a51b66eccb0e1e7ceb3b81328cf76f3e5e203b

SHA256
ce97be1be7e916ec71db944b229b604eec8cde3b0957c07200b17cf3c8bd8eba

SHA512
4b84d6bae244a44801e8ddf0b8b128e8f0c191843b29f425ed5c034ce259af131e19b94205e2b95ee01489cd232da79f1307c2a7ccaa6ab5350a7dca5d0a4131

Download Submit
memory/2076-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2076-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2076-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2076-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2076-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2076-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2812-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2916-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2916-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2916-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2916-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2916-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads