tofsee | 1ae6599bd7f5bdc497a81a9bb41a0f6bc42cbc9e8732fcc43ce9673bda24399f

General

Target

2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe
Size

14.4MB
MD5

af2bf1938e054d716d7c0c2ec40e7f7b
SHA1

629db22de0467561fcbdc2e15f716e22c9d28eb0
SHA256

1ae6599bd7f5bdc497a81a9bb41a0f6bc42cbc9e8732fcc43ce9673bda24399f
SHA512

0f12812f76a4f44c48cbcd6b75fdf4ae6555cbf043c118011efa63841d0ab5b63a79aa1c53458de16ded28b8c80ededd56f51112069e8fbe1a140225ae3e98f2
SSDEEP

24576:j6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQv:uWdLQk

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
2096	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\cdcyouuu\ImagePath = "C:\\Windows\\SysWOW64\\cdcyouuu\\smmdoxoq.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe

Deletes itself 1 IoCs

pid	Process
4816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4060	smmdoxoq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4060 set thread context of 4816	4060	smmdoxoq.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
1104	sc.exe
3388	sc.exe
3208	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
796	2808	WerFault.exe	84
1968	4060	WerFault.exe	96

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_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smmdoxoq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 3660	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	86
PID 2808 wrote to memory of 3660	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	86
PID 2808 wrote to memory of 3660	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	86
PID 2808 wrote to memory of 1488	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	88
PID 2808 wrote to memory of 1488	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	88
PID 2808 wrote to memory of 1488	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	88
PID 2808 wrote to memory of 1104	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	90
PID 2808 wrote to memory of 1104	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	90
PID 2808 wrote to memory of 1104	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	90
PID 2808 wrote to memory of 3388	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	92
PID 2808 wrote to memory of 3388	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	92
PID 2808 wrote to memory of 3388	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	92
PID 2808 wrote to memory of 3208	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	94
PID 2808 wrote to memory of 3208	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	94
PID 2808 wrote to memory of 3208	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	94
PID 2808 wrote to memory of 2096	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	97
PID 2808 wrote to memory of 2096	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	97
PID 2808 wrote to memory of 2096	2808	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	97
PID 4060 wrote to memory of 4816	4060	smmdoxoq.exe	103
PID 4060 wrote to memory of 4816	4060	smmdoxoq.exe	103
PID 4060 wrote to memory of 4816	4060	smmdoxoq.exe	103
PID 4060 wrote to memory of 4816	4060	smmdoxoq.exe	103
PID 4060 wrote to memory of 4816	4060	smmdoxoq.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cdcyouuu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\smmdoxoq.exe" C:\Windows\SysWOW64\cdcyouuu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cdcyouuu binPath= "C:\Windows\SysWOW64\cdcyouuu\smmdoxoq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cdcyouuu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cdcyouuu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3208
- 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:2096
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 580
  2⤵
  - Program crash
  PID:796

C:\Windows\SysWOW64\cdcyouuu\smmdoxoq.exe
C:\Windows\SysWOW64\cdcyouuu\smmdoxoq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 528
  2⤵
  - Program crash
  PID:1968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2808 -ip 2808
1⤵
PID:488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4060 -ip 4060
1⤵
PID:2692

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\smmdoxoq.exe

Filesize
11.0MB

MD5
1b241368180942e8f1fdebe72602c250

SHA1
98a5f603b10f7b9907a2427ee460f1d2e2bff47b

SHA256
92ae8c4e238d22a6bc4ff8ccb513ec864c54c2d05682c7c069310fdcd5c2c849

SHA512
859a99136decc0c532e78e5b1c2900bb36ec5b52dac65403ada628f332a9548ba96e95f767a4e7ca8d553a69a162ef590cb77645cf5c5407991e7de222782683

Download Submit
memory/2808-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2808-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2808-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2808-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2808-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2808-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/4060-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4060-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4060-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4060-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4816-14-0x0000000000590000-0x00000000005A5000-memory.dmp

Filesize
84KB

Download
memory/4816-16-0x0000000000590000-0x00000000005A5000-memory.dmp

Filesize
84KB

Download
memory/4816-17-0x0000000000590000-0x00000000005A5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads