tofsee | 141db036f2473f2aad6ec65e11a5d236404a2a6901f45a7b51fca1fd9ccaa352

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
26-01-2025 18:28

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General

Target

2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe
Size

11.2MB
MD5

1a0409d9ccf8445c0679060efe550d30
SHA1

2aabbbde2e3e1d6f42d6387243a60737ba164222
SHA256

141db036f2473f2aad6ec65e11a5d236404a2a6901f45a7b51fca1fd9ccaa352
SHA512

2c8e95ea2777865b937f70ece6830056db7b5c240b6143f8dc0db9b51413a1e88e0e29563e123c542f9620d1c065c9d3da0d1ea564a896bef3446c538ab806e1
SSDEEP

6144:0LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ9:pTYe+D2jFu+iZoUFhAz

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\ulzkwzls = "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
2880	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\ulzkwzls\ImagePath = "C:\\Windows\\SysWOW64\\ulzkwzls\\yssjuduw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2740	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	yssjuduw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2796 set thread context of 2740	2796	yssjuduw.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2140	sc.exe
2484	sc.exe
2692	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	netsh.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	yssjuduw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 1040	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	30
PID 2120 wrote to memory of 1040	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	30
PID 2120 wrote to memory of 1040	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	30
PID 2120 wrote to memory of 1040	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	30
PID 2120 wrote to memory of 2860	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	32
PID 2120 wrote to memory of 2860	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	32
PID 2120 wrote to memory of 2860	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	32
PID 2120 wrote to memory of 2860	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	32
PID 2120 wrote to memory of 2140	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	34
PID 2120 wrote to memory of 2140	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	34
PID 2120 wrote to memory of 2140	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	34
PID 2120 wrote to memory of 2140	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	34
PID 2120 wrote to memory of 2484	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	36
PID 2120 wrote to memory of 2484	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	36
PID 2120 wrote to memory of 2484	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	36
PID 2120 wrote to memory of 2484	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	36
PID 2120 wrote to memory of 2692	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	38
PID 2120 wrote to memory of 2692	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	38
PID 2120 wrote to memory of 2692	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	38
PID 2120 wrote to memory of 2692	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	38
PID 2796 wrote to memory of 2740	2796	yssjuduw.exe	41
PID 2796 wrote to memory of 2740	2796	yssjuduw.exe	41
PID 2796 wrote to memory of 2740	2796	yssjuduw.exe	41
PID 2796 wrote to memory of 2740	2796	yssjuduw.exe	41
PID 2796 wrote to memory of 2740	2796	yssjuduw.exe	41
PID 2796 wrote to memory of 2740	2796	yssjuduw.exe	41
PID 2120 wrote to memory of 2880	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	42
PID 2120 wrote to memory of 2880	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	42
PID 2120 wrote to memory of 2880	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	42
PID 2120 wrote to memory of 2880	2120	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ulzkwzls\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yssjuduw.exe" C:\Windows\SysWOW64\ulzkwzls\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ulzkwzls binPath= "C:\Windows\SysWOW64\ulzkwzls\yssjuduw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ulzkwzls "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ulzkwzls
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- 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:2880

C:\Windows\SysWOW64\ulzkwzls\yssjuduw.exe
C:\Windows\SysWOW64\ulzkwzls\yssjuduw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796
- 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:2740

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\yssjuduw.exe

Filesize
12.7MB

MD5
6305840fee72d5e8ca74103975176a2c

SHA1
596f616471cad5cb834656fda7e0bf547e046c4d

SHA256
ef423c0cd41413b352bacaa427d61cd76756513572bc4216ec632ec79b007a1b

SHA512
32cdf588d1f1b70626ac90c26c3fc0ed66957faa99bf70c427d34fc8980942ad08caca30589372ed74fe6287c1faf3c649363265e0d7fadfc3d274e7eab00f81

Download Submit
memory/2120-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2120-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2120-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2120-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2120-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2120-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2740-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2796-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads