tofsee | fb858d0d599cc3bc777d15f30c9bbc1661dc364da678017179cef81965949780

General

Target

2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe
Size

14.3MB
MD5

eeeca1b4e9362ebcc28e6c9fbb4d5024
SHA1

775c4131d4c97428456f30e07978408af1f73c9f
SHA256

fb858d0d599cc3bc777d15f30c9bbc1661dc364da678017179cef81965949780
SHA512

293efe608649c38be1b33145684c79eef16af4f07984ad4ece1a631c9fcc917990f3bc16010110725b474ee7833902b45357ef69e120a314b89600f753bb08b3
SSDEEP

24576:lEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZT:ufot

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
2576	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\nawpsuza\ImagePath = "C:\\Windows\\SysWOW64\\nawpsuza\\ygvzmktt.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe

Deletes itself 1 IoCs

pid	Process
2972	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3980	ygvzmktt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3980 set thread context of 2972	3980	ygvzmktt.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1132	sc.exe
1000	sc.exe
1436	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
2280	2844	WerFault.exe	81
4988	3980	WerFault.exe	92

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	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.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	ygvzmktt.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 4172	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	82
PID 2844 wrote to memory of 4172	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	82
PID 2844 wrote to memory of 4172	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	82
PID 2844 wrote to memory of 3100	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	84
PID 2844 wrote to memory of 3100	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	84
PID 2844 wrote to memory of 3100	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	84
PID 2844 wrote to memory of 1436	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	86
PID 2844 wrote to memory of 1436	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	86
PID 2844 wrote to memory of 1436	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	86
PID 2844 wrote to memory of 1132	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	88
PID 2844 wrote to memory of 1132	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	88
PID 2844 wrote to memory of 1132	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	88
PID 2844 wrote to memory of 1000	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	90
PID 2844 wrote to memory of 1000	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	90
PID 2844 wrote to memory of 1000	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	90
PID 2844 wrote to memory of 2576	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	93
PID 2844 wrote to memory of 2576	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	93
PID 2844 wrote to memory of 2576	2844	2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe	93
PID 3980 wrote to memory of 2972	3980	ygvzmktt.exe	98
PID 3980 wrote to memory of 2972	3980	ygvzmktt.exe	98
PID 3980 wrote to memory of 2972	3980	ygvzmktt.exe	98
PID 3980 wrote to memory of 2972	3980	ygvzmktt.exe	98
PID 3980 wrote to memory of 2972	3980	ygvzmktt.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nawpsuza\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ygvzmktt.exe" C:\Windows\SysWOW64\nawpsuza\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nawpsuza binPath= "C:\Windows\SysWOW64\nawpsuza\ygvzmktt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nawpsuza "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1132
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nawpsuza
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1000
- 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:2576
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 808
  2⤵
  - Program crash
  PID:2280

C:\Windows\SysWOW64\nawpsuza\ygvzmktt.exe
C:\Windows\SysWOW64\nawpsuza\ygvzmktt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-11_eeeca1b4e9362ebcc28e6c9fbb4d5024_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3980
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 512
  2⤵
  - Program crash
  PID:4988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2844 -ip 2844
1⤵
PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3980 -ip 3980
1⤵
PID:5100

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\ygvzmktt.exe

Filesize
13.3MB

MD5
6d143c37c341dc54482620167dd5e71b

SHA1
28de9bbe08b21f12f417178d6721aeeb8ef8e9e3

SHA256
d62a0171775d736ad116a1f40db380b831544db0554f502a2d92891d5cb26cbe

SHA512
3c3701cc94c71e57e651d001d99128b3194de41558d8c519f9010f5ec6d6ddac232dac11c646344b5485ead48d7dc32ee9d668ae965ebf7ffba09031a28dae39

Download Submit
memory/2844-8-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/2844-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2844-2-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/2844-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2844-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2844-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/2972-14-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/2972-16-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/2972-17-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/3980-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3980-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3980-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3980-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads