tofsee | f887cefae06387746672a7f3e3ebf7ea7bc137f6af488eb9eb4438f7ebc5f28a

General

Target

2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe
Size

12.2MB
MD5

d7ef9529421e324f01552cb999958522
SHA1

6032398c9246014af54aa6ec4fd6980ff89f2f9d
SHA256

f887cefae06387746672a7f3e3ebf7ea7bc137f6af488eb9eb4438f7ebc5f28a
SHA512

0f110168c1c01e8df0d68e744f2327db173b18f03909c282bf7d8b374bb005275b568db91aeb5070941767762c2fb06e79c66cb62c039cfae0d8601b3e6d6fa4
SSDEEP

6144:TLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQd:oTYe+D2jFu+iZoUFhAz

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
4756	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\gwqobype\ImagePath = "C:\\Windows\\SysWOW64\\gwqobype\\mdzgxwae.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe

Deletes itself 1 IoCs

pid	Process
1740	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2012	mdzgxwae.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2012 set thread context of 1740	2012	mdzgxwae.exe	96

Launches sc.exe 3 IoCs

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

pid	Process
5096	sc.exe
3036	sc.exe
4780	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1684	2012	WerFault.exe	92
3496	4164	WerFault.exe	81

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	2025-01-15_d7ef9529421e324f01552cb999958522_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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mdzgxwae.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 2684	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	82
PID 4164 wrote to memory of 2684	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	82
PID 4164 wrote to memory of 2684	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	82
PID 4164 wrote to memory of 2224	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	84
PID 4164 wrote to memory of 2224	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	84
PID 4164 wrote to memory of 2224	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	84
PID 4164 wrote to memory of 3036	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	86
PID 4164 wrote to memory of 3036	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	86
PID 4164 wrote to memory of 3036	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	86
PID 4164 wrote to memory of 4780	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	88
PID 4164 wrote to memory of 4780	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	88
PID 4164 wrote to memory of 4780	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	88
PID 4164 wrote to memory of 5096	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	90
PID 4164 wrote to memory of 5096	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	90
PID 4164 wrote to memory of 5096	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	90
PID 4164 wrote to memory of 4756	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	93
PID 4164 wrote to memory of 4756	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	93
PID 4164 wrote to memory of 4756	4164	2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe	93
PID 2012 wrote to memory of 1740	2012	mdzgxwae.exe	96
PID 2012 wrote to memory of 1740	2012	mdzgxwae.exe	96
PID 2012 wrote to memory of 1740	2012	mdzgxwae.exe	96
PID 2012 wrote to memory of 1740	2012	mdzgxwae.exe	96
PID 2012 wrote to memory of 1740	2012	mdzgxwae.exe	96

C:\Users\Admin\AppData\Local\Temp\2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gwqobype\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mdzgxwae.exe" C:\Windows\SysWOW64\gwqobype\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gwqobype binPath= "C:\Windows\SysWOW64\gwqobype\mdzgxwae.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gwqobype "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gwqobype
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5096
- 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:4756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4164 -s 1040
  2⤵
  - Program crash
  PID:3496

C:\Windows\SysWOW64\gwqobype\mdzgxwae.exe
C:\Windows\SysWOW64\gwqobype\mdzgxwae.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_d7ef9529421e324f01552cb999958522_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 516
  2⤵
  - Program crash
  PID:1684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2012 -ip 2012
1⤵
PID:2248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4164 -ip 4164
1⤵
PID:4092

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

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Downloads

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

Filesize
13.8MB

MD5
4b72cef7b3a8b75ca4b5cea385768755

SHA1
e8a69e493c2b813ef1d7bb1304fff5a95dd34b38

SHA256
c645d71f7b02ec911bb0162edbe6c330c77095db06dfa29dad4873fa53101c27

SHA512
552e09aa39b31e7eecc7f70132cb4a2e066d55680bd40007a8b84e514bdb5c5d658ba3141febb370515405c8b96332b9b45b306f0f4a7a57e214e470c175a42c

Download Submit
memory/1740-14-0x0000000000E20000-0x0000000000E35000-memory.dmp

Filesize
84KB

Download
memory/1740-22-0x0000000000E20000-0x0000000000E35000-memory.dmp

Filesize
84KB

Download
memory/1740-21-0x0000000000E20000-0x0000000000E35000-memory.dmp

Filesize
84KB

Download
memory/1740-20-0x0000000000E20000-0x0000000000E35000-memory.dmp

Filesize
84KB

Download
memory/1740-11-0x0000000000E20000-0x0000000000E35000-memory.dmp

Filesize
84KB

Download
memory/2012-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2012-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2012-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2012-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4164-1-0x0000000000700000-0x0000000000800000-memory.dmp

Filesize
1024KB

Download
memory/4164-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4164-18-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/4164-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4164-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4164-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads