tofsee | 09a025d90221793f3ff8df11fc2e8e4dac890f387da84d383480084d9b45fffa

General

Target

2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe
Size

14.9MB
MD5

c57642a364876b5cc24977f6e411a924
SHA1

33534d6c0c3584921779375592bffd5f75c5f2ac
SHA256

09a025d90221793f3ff8df11fc2e8e4dac890f387da84d383480084d9b45fffa
SHA512

5b8b6f4b39896eb71f341dc901bd45de26683ec20d23b0e70253cd4635841834417d246f807fbda23edf855c3d7ded29c9437887e61f18c66c4853ff80e6173a
SSDEEP

3072:sLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/f:JOMdRQr7OB0ypmMXnl8XEPM3noSWOC8

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
4888	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\wctisghq\ImagePath = "C:\\Windows\\SysWOW64\\wctisghq\\ljstcynj.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-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe

Deletes itself 1 IoCs

pid	Process
2544	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3644	ljstcynj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3644 set thread context of 2544	3644	ljstcynj.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
2740	sc.exe
1496	sc.exe
1644	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
5052	2936	WerFault.exe	82
2152	3644	WerFault.exe	97

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	2025-01-30_c57642a364876b5cc24977f6e411a924_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ljstcynj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 4732	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	87
PID 2936 wrote to memory of 4732	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	87
PID 2936 wrote to memory of 4732	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	87
PID 2936 wrote to memory of 2980	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	89
PID 2936 wrote to memory of 2980	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	89
PID 2936 wrote to memory of 2980	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	89
PID 2936 wrote to memory of 2740	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	91
PID 2936 wrote to memory of 2740	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	91
PID 2936 wrote to memory of 2740	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	91
PID 2936 wrote to memory of 1496	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	93
PID 2936 wrote to memory of 1496	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	93
PID 2936 wrote to memory of 1496	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	93
PID 2936 wrote to memory of 1644	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	95
PID 2936 wrote to memory of 1644	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	95
PID 2936 wrote to memory of 1644	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	95
PID 2936 wrote to memory of 4888	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	98
PID 2936 wrote to memory of 4888	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	98
PID 2936 wrote to memory of 4888	2936	2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe	98
PID 3644 wrote to memory of 2544	3644	ljstcynj.exe	103
PID 3644 wrote to memory of 2544	3644	ljstcynj.exe	103
PID 3644 wrote to memory of 2544	3644	ljstcynj.exe	103
PID 3644 wrote to memory of 2544	3644	ljstcynj.exe	103
PID 3644 wrote to memory of 2544	3644	ljstcynj.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wctisghq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ljstcynj.exe" C:\Windows\SysWOW64\wctisghq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wctisghq binPath= "C:\Windows\SysWOW64\wctisghq\ljstcynj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wctisghq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wctisghq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1644
- 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:4888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2936 -s 672
  2⤵
  - Program crash
  PID:5052

C:\Windows\SysWOW64\wctisghq\ljstcynj.exe
C:\Windows\SysWOW64\wctisghq\ljstcynj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_c57642a364876b5cc24977f6e411a924_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3644 -s 508
  2⤵
  - Program crash
  PID:2152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2936 -ip 2936
1⤵
PID:4248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3644 -ip 3644
1⤵
PID:4528

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\ljstcynj.exe

Filesize
11.7MB

MD5
43916ebe074f8d9385f3025a646cf8bd

SHA1
2ae707de25ae73ea0d5a5fa1c854d22a72733b03

SHA256
f89965fef807788bbd839d39cdf01ba054fc8842872cd25a371f5997b7a6f65c

SHA512
3717a60d36c55626c74006095cb3bf0c49ed1b12f3729a01208c451d395084ccc5fce37134c2e2e66db4f6d8bedaa040678096ca0081a80731e9847857281447

Download Submit
memory/2544-16-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/2544-17-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/2544-14-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/2936-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2936-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2936-1-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download
memory/2936-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2936-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2936-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3644-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3644-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3644-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3644-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads