tofsee | 78b1d4c45d4403511dfc45b0cfa83275d8bfc26b34cf4859bb72a73225926b69

General

Target

2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe
Size

11.8MB
MD5

a24aa125d61f42a8267cfd85bcde7b18
SHA1

2e834ed6e6dc00265a6795ac31b1726436c85625
SHA256

78b1d4c45d4403511dfc45b0cfa83275d8bfc26b34cf4859bb72a73225926b69
SHA512

bf9d0811d67273741caa74022b2596cc6ca7e072bb92973443a17479749940102d0f582c97290ad02b10bed77ebaf197345061279a048531d668cbe86ab79265
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/T:ROMdRQr7OB0ypmMXnl8XEPM3noSWOCw

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
2904	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\pfsmlnd\ImagePath = "C:\\Windows\\SysWOW64\\pfsmlnd\\namjcpue.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe

Deletes itself 1 IoCs

pid	Process
1156	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4356	namjcpue.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4356 set thread context of 1156	4356	namjcpue.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4584	sc.exe
3448	sc.exe
4456	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
2908	4572	WerFault.exe	80
1380	4356	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	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	namjcpue.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 4572 wrote to memory of 3164	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	82
PID 4572 wrote to memory of 3164	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	82
PID 4572 wrote to memory of 3164	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	82
PID 4572 wrote to memory of 4848	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	84
PID 4572 wrote to memory of 4848	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	84
PID 4572 wrote to memory of 4848	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	84
PID 4572 wrote to memory of 4584	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	86
PID 4572 wrote to memory of 4584	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	86
PID 4572 wrote to memory of 4584	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	86
PID 4572 wrote to memory of 3448	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	88
PID 4572 wrote to memory of 3448	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	88
PID 4572 wrote to memory of 3448	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	88
PID 4572 wrote to memory of 4456	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	90
PID 4572 wrote to memory of 4456	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	90
PID 4572 wrote to memory of 4456	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	90
PID 4572 wrote to memory of 2904	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	93
PID 4572 wrote to memory of 2904	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	93
PID 4572 wrote to memory of 2904	4572	2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe	93
PID 4356 wrote to memory of 1156	4356	namjcpue.exe	98
PID 4356 wrote to memory of 1156	4356	namjcpue.exe	98
PID 4356 wrote to memory of 1156	4356	namjcpue.exe	98
PID 4356 wrote to memory of 1156	4356	namjcpue.exe	98
PID 4356 wrote to memory of 1156	4356	namjcpue.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pfsmlnd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\namjcpue.exe" C:\Windows\SysWOW64\pfsmlnd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pfsmlnd binPath= "C:\Windows\SysWOW64\pfsmlnd\namjcpue.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4584
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pfsmlnd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pfsmlnd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4456
- 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:2904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 680
  2⤵
  - Program crash
  PID:2908

C:\Windows\SysWOW64\pfsmlnd\namjcpue.exe
C:\Windows\SysWOW64\pfsmlnd\namjcpue.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_a24aa125d61f42a8267cfd85bcde7b18_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4356
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4356 -s 516
  2⤵
  - Program crash
  PID:1380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4572 -ip 4572
1⤵
PID:2416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4356 -ip 4356
1⤵
PID:904

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\namjcpue.exe

Filesize
14.8MB

MD5
e33440ca4c2d69683703d6b52fee45ef

SHA1
864a81526837ee1de57982f88d98edc64fd98a3f

SHA256
248311132bc4014b89e718f553061e055d24cdc817c3f4a88dad6d55579d4169

SHA512
94e11273ea6f7ce19dab8be904fb4270397c7730744c854c5c96d7aae5458638de2457951fe63470525b8ce9893cb710bd6d7a302c244cf212a34eeb42395311

Download Submit
memory/1156-16-0x00000000005C0000-0x00000000005D5000-memory.dmp

Filesize
84KB

Download
memory/1156-17-0x00000000005C0000-0x00000000005D5000-memory.dmp

Filesize
84KB

Download
memory/1156-14-0x00000000005C0000-0x00000000005D5000-memory.dmp

Filesize
84KB

Download
memory/4356-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4356-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4356-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4356-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4572-1-0x0000000000450000-0x0000000000550000-memory.dmp

Filesize
1024KB

Download
memory/4572-2-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download
memory/4572-8-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download
memory/4572-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4572-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4572-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads