tofsee | b584823fdaf59e66fa2255c106826150af7a8a014a577573e0046ee43cccb93f

General

Target

2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe
Size

10.1MB
MD5

e6dc909e302296a0678c6a4f90d3b4c0
SHA1

0d5dc626e22a0cfa400bd334f655eccee5392a52
SHA256

b584823fdaf59e66fa2255c106826150af7a8a014a577573e0046ee43cccb93f
SHA512

2cc3e37c26830fd2a891e1c6f38122d2f1cfe24c6fca6936d0e43a6ab1510adae193d33bef30f018f3fdfca62cfa460856f0fd4d65ff163a9bbe887bec6601e5
SSDEEP

196608:JyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:EXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn

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
2896	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\ftbeyhh\ImagePath = "C:\\Windows\\SysWOW64\\ftbeyhh\\rllcnwnp.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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe

Deletes itself 1 IoCs

pid	Process
760	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1256	rllcnwnp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1256 set thread context of 760	1256	rllcnwnp.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
4092	sc.exe
1348	sc.exe
3892	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

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_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	rllcnwnp.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 3640 wrote to memory of 1840	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	87
PID 3640 wrote to memory of 1840	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	87
PID 3640 wrote to memory of 1840	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	87
PID 3640 wrote to memory of 1380	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	89
PID 3640 wrote to memory of 1380	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	89
PID 3640 wrote to memory of 1380	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	89
PID 3640 wrote to memory of 4092	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	91
PID 3640 wrote to memory of 4092	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	91
PID 3640 wrote to memory of 4092	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	91
PID 3640 wrote to memory of 1348	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	93
PID 3640 wrote to memory of 1348	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	93
PID 3640 wrote to memory of 1348	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	93
PID 3640 wrote to memory of 3892	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	95
PID 3640 wrote to memory of 3892	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	95
PID 3640 wrote to memory of 3892	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	95
PID 3640 wrote to memory of 2896	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	98
PID 3640 wrote to memory of 2896	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	98
PID 3640 wrote to memory of 2896	3640	2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe	98
PID 1256 wrote to memory of 760	1256	rllcnwnp.exe	99
PID 1256 wrote to memory of 760	1256	rllcnwnp.exe	99
PID 1256 wrote to memory of 760	1256	rllcnwnp.exe	99
PID 1256 wrote to memory of 760	1256	rllcnwnp.exe	99
PID 1256 wrote to memory of 760	1256	rllcnwnp.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ftbeyhh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rllcnwnp.exe" C:\Windows\SysWOW64\ftbeyhh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ftbeyhh binPath= "C:\Windows\SysWOW64\ftbeyhh\rllcnwnp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ftbeyhh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ftbeyhh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3892
- 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:2896

C:\Windows\SysWOW64\ftbeyhh\rllcnwnp.exe
C:\Windows\SysWOW64\ftbeyhh\rllcnwnp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e6dc909e302296a0678c6a4f90d3b4c0_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:760

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\rllcnwnp.exe

Filesize
12.4MB

MD5
3518835fbb396f47b0a98525a157c9cf

SHA1
665250b00a29ec2131ead10e400cabfeee5a8c54

SHA256
0871d900893bf2ed1bbea2555c3749f3bbfe9d7c1ec306b03b6cce600445fde5

SHA512
5f0b1f82e942060779ac352394a1cdd507bcc60d4e88e769d24d8fa8925349c7257407e709abcdbdedb2043e07b68634e52e05b92fdd3749c1844aae8d824b1b

Download Submit
memory/760-11-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/760-21-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/760-20-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/760-19-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/760-16-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/1256-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1256-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1256-18-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3640-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3640-12-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/3640-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/3640-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3640-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3640-2-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads