tofsee | 6e8518f2d793a0178209b8f7091df07cbafd2193325b04789c7ee1a2837b6642

Analysis

max time kernel
141s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-11-2024 19:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe
Size

11.3MB
MD5

0eb39e012ddb0df5c7789ab656bad70c
SHA1

4d1aada24937ba3fed7a0caa71d29ed033e1e48e
SHA256

6e8518f2d793a0178209b8f7091df07cbafd2193325b04789c7ee1a2837b6642
SHA512

d5c598e795e40bc5d6b33035033e0ac8834f6c89246ba95032e5dd15102332719df55bcc549ff598a15ff1b30bbdb16609d2c63e30f5e805cb896c793a95b52d
SSDEEP

49152:cVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGW:cVdrl/9zG

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\ovllapuh = "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
2832	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\ovllapuh\ImagePath = "C:\\Windows\\SysWOW64\\ovllapuh\\nlsonwul.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2772	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2252	nlsonwul.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 2772	2252	nlsonwul.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2692	sc.exe
2808	sc.exe
2668	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	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	nlsonwul.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2452	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	31
PID 2036 wrote to memory of 2452	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	31
PID 2036 wrote to memory of 2452	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	31
PID 2036 wrote to memory of 2452	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	31
PID 2036 wrote to memory of 2736	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	33
PID 2036 wrote to memory of 2736	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	33
PID 2036 wrote to memory of 2736	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	33
PID 2036 wrote to memory of 2736	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	33
PID 2036 wrote to memory of 2692	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	35
PID 2036 wrote to memory of 2692	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	35
PID 2036 wrote to memory of 2692	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	35
PID 2036 wrote to memory of 2692	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	35
PID 2036 wrote to memory of 2808	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	37
PID 2036 wrote to memory of 2808	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	37
PID 2036 wrote to memory of 2808	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	37
PID 2036 wrote to memory of 2808	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	37
PID 2036 wrote to memory of 2668	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	39
PID 2036 wrote to memory of 2668	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	39
PID 2036 wrote to memory of 2668	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	39
PID 2036 wrote to memory of 2668	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	39
PID 2036 wrote to memory of 2832	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	42
PID 2036 wrote to memory of 2832	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	42
PID 2036 wrote to memory of 2832	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	42
PID 2036 wrote to memory of 2832	2036	2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe	42
PID 2252 wrote to memory of 2772	2252	nlsonwul.exe	44
PID 2252 wrote to memory of 2772	2252	nlsonwul.exe	44
PID 2252 wrote to memory of 2772	2252	nlsonwul.exe	44
PID 2252 wrote to memory of 2772	2252	nlsonwul.exe	44
PID 2252 wrote to memory of 2772	2252	nlsonwul.exe	44
PID 2252 wrote to memory of 2772	2252	nlsonwul.exe	44

C:\Users\Admin\AppData\Local\Temp\2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ovllapuh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nlsonwul.exe" C:\Windows\SysWOW64\ovllapuh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ovllapuh binPath= "C:\Windows\SysWOW64\ovllapuh\nlsonwul.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ovllapuh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ovllapuh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2668
- 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:2832

C:\Windows\SysWOW64\ovllapuh\nlsonwul.exe
C:\Windows\SysWOW64\ovllapuh\nlsonwul.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-03_0eb39e012ddb0df5c7789ab656bad70c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- 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:2772

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nlsonwul.exe

Filesize
11.0MB

MD5
808817afc96d2ab793b710da018cde37

SHA1
acdc0f23b754a7c70de7bb92b61279c76d86c0c3

SHA256
4117ffa192f3efbfe91c51219455e22d9b838184a0d267ad91bd52b960231f21

SHA512
70f107406ef3678e04999e9e5cd56da76a527b8699fccf2fa21b51aefb70815d7160177a649062b1d65d2789f9aeb223acd4f6ffb4bad3f6a783359a60cb6e04

Download Submit
memory/2036-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2036-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2036-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2036-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2036-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2036-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2252-16-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2772-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads