tofsee | 1bef5da76b7f21d9c2783f1f6c26d91ef56e48a8e87c074ddcdbdd4eefafc085

General

Target

2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe
Size

14.2MB
MD5

2913be07cd898b6f938c6c78bc6b17c7
SHA1

aeef3c0d05dfcca2db6e6488ad90b20950f3fd42
SHA256

1bef5da76b7f21d9c2783f1f6c26d91ef56e48a8e87c074ddcdbdd4eefafc085
SHA512

57328db21f5d2ae41c10e78c3c116a49c943aaae89b3a436e582301bdbd7c8470b62c6a44d1c2a04ef2693a5094b0830ac6a930323c7f9f574d4c27c4dcd810d
SSDEEP

24576:e6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQg:PWdLQk

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4376	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\xshthiww\ImagePath = "C:\\Windows\\SysWOW64\\xshthiww\\otdysebd.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe

Deletes itself 1 IoCs

pid	Process
1612	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2256	otdysebd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 1612	2256	otdysebd.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4868	sc.exe
4680	sc.exe
4988	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1952	4852	WerFault.exe	82
3564	2256	WerFault.exe	94

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	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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	otdysebd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4852 wrote to memory of 2088	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	84
PID 4852 wrote to memory of 2088	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	84
PID 4852 wrote to memory of 2088	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	84
PID 4852 wrote to memory of 3492	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	86
PID 4852 wrote to memory of 3492	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	86
PID 4852 wrote to memory of 3492	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	86
PID 4852 wrote to memory of 4868	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	88
PID 4852 wrote to memory of 4868	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	88
PID 4852 wrote to memory of 4868	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	88
PID 4852 wrote to memory of 4680	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	90
PID 4852 wrote to memory of 4680	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	90
PID 4852 wrote to memory of 4680	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	90
PID 4852 wrote to memory of 4988	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	92
PID 4852 wrote to memory of 4988	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	92
PID 4852 wrote to memory of 4988	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	92
PID 4852 wrote to memory of 4376	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	95
PID 4852 wrote to memory of 4376	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	95
PID 4852 wrote to memory of 4376	4852	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	95
PID 2256 wrote to memory of 1612	2256	otdysebd.exe	101
PID 2256 wrote to memory of 1612	2256	otdysebd.exe	101
PID 2256 wrote to memory of 1612	2256	otdysebd.exe	101
PID 2256 wrote to memory of 1612	2256	otdysebd.exe	101
PID 2256 wrote to memory of 1612	2256	otdysebd.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4852
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xshthiww\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\otdysebd.exe" C:\Windows\SysWOW64\xshthiww\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xshthiww binPath= "C:\Windows\SysWOW64\xshthiww\otdysebd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xshthiww "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xshthiww
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4988
- 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:4376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4852 -s 1036
  2⤵
  - Program crash
  PID:1952

C:\Windows\SysWOW64\xshthiww\otdysebd.exe
C:\Windows\SysWOW64\xshthiww\otdysebd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2256 -s 512
  2⤵
  - Program crash
  PID:3564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4852 -ip 4852
1⤵
PID:4880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2256 -ip 2256
1⤵
PID:2404

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\otdysebd.exe

Filesize
11.1MB

MD5
6187a2697b993261230a1eccf5ff419b

SHA1
0e717aa1f4f5da9710f1fbb394ea5a308c511cc0

SHA256
f65cb788faa14ea48fb936589930b437c00ec5fe841ef8099bf5f1f04e4ded31

SHA512
8c7dec99e0b1a2fa531270adf2b0685ce70ab6449fae27def4b028b0ff0332a02767a7745d2a03e441118361dccabdde2997b3086e9eda2797c827692b6f720b

Download Submit
memory/1612-14-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/1612-17-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/1612-16-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/2256-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2256-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2256-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2256-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4852-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4852-8-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/4852-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/4852-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4852-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4852-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads