tofsee | 380538b3005c68664dababdef5077fa2c5fe0bafa50f67bd8c1ab65068e3591e

General

Target

2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe
Size

14.5MB
MD5

4a0296c1f757e1d0a71605e1c227aa1c
SHA1

fb1a94d90537e00e3958c819d9fe5a18915d757b
SHA256

380538b3005c68664dababdef5077fa2c5fe0bafa50f67bd8c1ab65068e3591e
SHA512

b6beb3086d778d831c34a95c00a37c58d8eb05ba52facc52c775d56e6f57873d87ad4e81009c06e75fbd432b004cc5b54aad15934b42702c0fc43d0f845efb00
SSDEEP

3072:jLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/d:qOMdRQr7OB0ypmMXnl8XEPM3noSWOCW

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
4664	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\zebknjxm\ImagePath = "C:\\Windows\\SysWOW64\\zebknjxm\\bbcnijhp.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-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe

Deletes itself 1 IoCs

pid	Process
1176	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
340	bbcnijhp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 340 set thread context of 1176	340	bbcnijhp.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4224	sc.exe
3112	sc.exe
3232	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
1280	3196	WerFault.exe	82
2088	340	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bbcnijhp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 1644	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	86
PID 3196 wrote to memory of 1644	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	86
PID 3196 wrote to memory of 1644	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	86
PID 3196 wrote to memory of 4864	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	88
PID 3196 wrote to memory of 4864	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	88
PID 3196 wrote to memory of 4864	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	88
PID 3196 wrote to memory of 4224	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	90
PID 3196 wrote to memory of 4224	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	90
PID 3196 wrote to memory of 4224	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	90
PID 3196 wrote to memory of 3112	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	92
PID 3196 wrote to memory of 3112	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	92
PID 3196 wrote to memory of 3112	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	92
PID 3196 wrote to memory of 3232	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	94
PID 3196 wrote to memory of 3232	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	94
PID 3196 wrote to memory of 3232	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	94
PID 3196 wrote to memory of 4664	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	97
PID 3196 wrote to memory of 4664	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	97
PID 3196 wrote to memory of 4664	3196	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	97
PID 340 wrote to memory of 1176	340	bbcnijhp.exe	102
PID 340 wrote to memory of 1176	340	bbcnijhp.exe	102
PID 340 wrote to memory of 1176	340	bbcnijhp.exe	102
PID 340 wrote to memory of 1176	340	bbcnijhp.exe	102
PID 340 wrote to memory of 1176	340	bbcnijhp.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zebknjxm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bbcnijhp.exe" C:\Windows\SysWOW64\zebknjxm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zebknjxm binPath= "C:\Windows\SysWOW64\zebknjxm\bbcnijhp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zebknjxm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zebknjxm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3232
- 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:4664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3196 -s 1408
  2⤵
  - Program crash
  PID:1280

C:\Windows\SysWOW64\zebknjxm\bbcnijhp.exe
C:\Windows\SysWOW64\zebknjxm\bbcnijhp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:340
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 340 -s 556
  2⤵
  - Program crash
  PID:2088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3196 -ip 3196
1⤵
PID:3764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 340 -ip 340
1⤵
PID:1156

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\bbcnijhp.exe

Filesize
10.5MB

MD5
564aaa4b7d1d8514a0652a51e90a867a

SHA1
866de7e04993abd11a78ed488dbc3839a4bb85a7

SHA256
28c6cf947385a61c844281bc97dc23664f1a77140b57fc956318cd318d88a629

SHA512
049b9196e96682357da68a4287210bfe4f2783ed2ea8e24ae713aa41dfe118e41befb681bcd1ad4785792aca31dc81780ba4b95c806403dad1eca05e3a0d711e

Download Submit
memory/340-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/340-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/340-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/340-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1176-14-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/1176-16-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/1176-17-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/3196-8-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/3196-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3196-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3196-2-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/3196-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3196-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads