tofsee | 02c394db4c8a4ca4e1d4a6c06285233de8c74079e4908caa151921936df67598

General

Target

2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe
Size

12.8MB
MD5

5c8dd9bde13889f4abc1f3e62a14e1ad
SHA1

59306df44642a5d7b1d7341739dbb298d189cfe0
SHA256

02c394db4c8a4ca4e1d4a6c06285233de8c74079e4908caa151921936df67598
SHA512

ceb0d0a38d0b3291edd580e57976d6186498f496a7c6758aeae5f6126e01183741bb561bc09759eee7ed097ccf0093b90c44d00ee250b9ba9af60c9e3e1e91eb
SSDEEP

24576:PEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZr:MfotF

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
2616	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\mjstvywf\ImagePath = "C:\\Windows\\SysWOW64\\mjstvywf\\qslwdlzp.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe

Deletes itself 1 IoCs

pid	Process
3016	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
760	qslwdlzp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 760 set thread context of 3016	760	qslwdlzp.exe	111

Launches sc.exe 3 IoCs

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

pid	Process
2972	sc.exe
2364	sc.exe
4828	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4692	808	WerFault.exe	83
4732	760	WerFault.exe	104

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	qslwdlzp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_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	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 23 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 2808	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	92
PID 808 wrote to memory of 2808	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	92
PID 808 wrote to memory of 2808	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	92
PID 808 wrote to memory of 4236	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	96
PID 808 wrote to memory of 4236	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	96
PID 808 wrote to memory of 4236	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	96
PID 808 wrote to memory of 2972	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	98
PID 808 wrote to memory of 2972	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	98
PID 808 wrote to memory of 2972	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	98
PID 808 wrote to memory of 2364	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	100
PID 808 wrote to memory of 2364	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	100
PID 808 wrote to memory of 2364	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	100
PID 808 wrote to memory of 4828	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	102
PID 808 wrote to memory of 4828	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	102
PID 808 wrote to memory of 4828	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	102
PID 808 wrote to memory of 2616	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	105
PID 808 wrote to memory of 2616	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	105
PID 808 wrote to memory of 2616	808	2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe	105
PID 760 wrote to memory of 3016	760	qslwdlzp.exe	111
PID 760 wrote to memory of 3016	760	qslwdlzp.exe	111
PID 760 wrote to memory of 3016	760	qslwdlzp.exe	111
PID 760 wrote to memory of 3016	760	qslwdlzp.exe	111
PID 760 wrote to memory of 3016	760	qslwdlzp.exe	111

C:\Users\Admin\AppData\Local\Temp\2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mjstvywf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qslwdlzp.exe" C:\Windows\SysWOW64\mjstvywf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4236
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mjstvywf binPath= "C:\Windows\SysWOW64\mjstvywf\qslwdlzp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mjstvywf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2364
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mjstvywf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4828
- 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:2616
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 792
  2⤵
  - Program crash
  PID:4692

C:\Windows\SysWOW64\mjstvywf\qslwdlzp.exe
C:\Windows\SysWOW64\mjstvywf\qslwdlzp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_5c8dd9bde13889f4abc1f3e62a14e1ad_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:760
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 556
  2⤵
  - Program crash
  PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 808 -ip 808
1⤵
PID:1012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 760 -ip 760
1⤵
PID:2720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
13.3MB

MD5
9739bd31ccba52850ff72b006ef94365

SHA1
64e899441d185f6a614b2a4bd5442b1daa016bc4

SHA256
6cd9f7868726fa5ef1d0ea8bd4aa00c857e7516120d50450c2b6a1cd142a5674

SHA512
fb8be82db6d79eb50e6be8017e39ac504d8153b27768d2341991869b56e34a4f0ff200b877f1fcc97ab112fa74dbe331af3a441ebd6e2b662a8acff77bd64d90

Download Submit
memory/760-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/760-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/760-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/760-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/808-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/808-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/808-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/808-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/808-8-0x00000000004D0000-0x00000000004E3000-memory.dmp

Filesize
76KB

Download
memory/808-2-0x00000000004D0000-0x00000000004E3000-memory.dmp

Filesize
76KB

Download
memory/3016-14-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/3016-16-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/3016-17-0x0000000000D10000-0x0000000000D25000-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