tofsee | b4e5b6c2e6a59c349804cf87e5663bbcd50ac96aceaf926526d67398a1610fdb

General

Target

2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe
Size

12.8MB
MD5

294baf6362d4f49cfe0cea1ed29d6345
SHA1

eec8cc0feeb35395e2defd1d53005501d5c1c53b
SHA256

b4e5b6c2e6a59c349804cf87e5663bbcd50ac96aceaf926526d67398a1610fdb
SHA512

9c111d5b6835c36de1ac4411359df8f042b9c90b0b5b30af076225487b7d373f334fa83f5c05f91023f1b47bb09dc5f5bc2a6dbe372a1c6c1310eff2a3a913bd
SSDEEP

24576:mpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttD:qoo9

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
4044	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\abjbzmgq\ImagePath = "C:\\Windows\\SysWOW64\\abjbzmgq\\lffwhqhj.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	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe

Deletes itself 1 IoCs

pid	Process
516	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3816	lffwhqhj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3816 set thread context of 516	3816	lffwhqhj.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3008	sc.exe
2148	sc.exe
2704	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
2888	3604	WerFault.exe	84
3836	3816	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.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	lffwhqhj.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3604 wrote to memory of 2500	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	86
PID 3604 wrote to memory of 2500	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	86
PID 3604 wrote to memory of 2500	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	86
PID 3604 wrote to memory of 4868	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	88
PID 3604 wrote to memory of 4868	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	88
PID 3604 wrote to memory of 4868	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	88
PID 3604 wrote to memory of 3008	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	90
PID 3604 wrote to memory of 3008	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	90
PID 3604 wrote to memory of 3008	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	90
PID 3604 wrote to memory of 2148	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	92
PID 3604 wrote to memory of 2148	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	92
PID 3604 wrote to memory of 2148	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	92
PID 3604 wrote to memory of 2704	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	94
PID 3604 wrote to memory of 2704	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	94
PID 3604 wrote to memory of 2704	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	94
PID 3604 wrote to memory of 4044	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	97
PID 3604 wrote to memory of 4044	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	97
PID 3604 wrote to memory of 4044	3604	2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe	97
PID 3816 wrote to memory of 516	3816	lffwhqhj.exe	102
PID 3816 wrote to memory of 516	3816	lffwhqhj.exe	102
PID 3816 wrote to memory of 516	3816	lffwhqhj.exe	102
PID 3816 wrote to memory of 516	3816	lffwhqhj.exe	102
PID 3816 wrote to memory of 516	3816	lffwhqhj.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\abjbzmgq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lffwhqhj.exe" C:\Windows\SysWOW64\abjbzmgq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create abjbzmgq binPath= "C:\Windows\SysWOW64\abjbzmgq\lffwhqhj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description abjbzmgq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start abjbzmgq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- 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:4044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 1204
  2⤵
  - Program crash
  PID:2888

C:\Windows\SysWOW64\abjbzmgq\lffwhqhj.exe
C:\Windows\SysWOW64\abjbzmgq\lffwhqhj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_294baf6362d4f49cfe0cea1ed29d6345_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3816
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3816 -s 532
  2⤵
  - Program crash
  PID:3836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3604 -ip 3604
1⤵
PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3816 -ip 3816
1⤵
PID:3676

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\lffwhqhj.exe

Filesize
14.7MB

MD5
029e430bed788ba67d72e06f2c72ec53

SHA1
b3a323c838fb491265c3e09b1c88de5897bd5e59

SHA256
0eeb91bd1630fd3304ae8cd0047109303b3eefee709173acaee0558c3934d2da

SHA512
9753bc220faa803f7dd4740c36bf99d9b7103a05ea011379b09a87496e66954e2a234db69c1adb75bb4804f66b37e510656a7fe858ba56a4bfb7aa4042ea7820

Download Submit
memory/516-14-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/516-17-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/516-16-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/3604-8-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/3604-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3604-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/3604-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3604-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3604-2-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/3816-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3816-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3816-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3816-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads