tofsee | 6b62d421c0993ea2c1d4213c5fa44f08e381642fed36603a6fc8efafec955de3

General

Target

2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe
Size

12.5MB
MD5

985d5a3c0a38f3438ecf1ee322381de5
SHA1

e1abddfb5e5550bc28d529a5ef293a575fb362a2
SHA256

6b62d421c0993ea2c1d4213c5fa44f08e381642fed36603a6fc8efafec955de3
SHA512

2b81be138cfe0501d45d7a7a5c1ee710971483e413ba41df5ea5f1d28b861cb0a722b47ee55feb04d1660f6888675008019379b56a0006ec66f395da6f29c850
SSDEEP

24576:dpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttV:3oo

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
4240	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\scbwdaon\ImagePath = "C:\\Windows\\SysWOW64\\scbwdaon\\neahyxbf.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	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe

Deletes itself 1 IoCs

pid	Process
5024	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2444	neahyxbf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2444 set thread context of 5024	2444	neahyxbf.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1416	sc.exe
5076	sc.exe
4044	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
2028	3564	WerFault.exe	82
4820	2444	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	neahyxbf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.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 3564 wrote to memory of 4652	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	86
PID 3564 wrote to memory of 4652	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	86
PID 3564 wrote to memory of 4652	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	86
PID 3564 wrote to memory of 3592	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	88
PID 3564 wrote to memory of 3592	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	88
PID 3564 wrote to memory of 3592	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	88
PID 3564 wrote to memory of 1416	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	90
PID 3564 wrote to memory of 1416	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	90
PID 3564 wrote to memory of 1416	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	90
PID 3564 wrote to memory of 5076	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	92
PID 3564 wrote to memory of 5076	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	92
PID 3564 wrote to memory of 5076	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	92
PID 3564 wrote to memory of 4044	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	94
PID 3564 wrote to memory of 4044	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	94
PID 3564 wrote to memory of 4044	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	94
PID 3564 wrote to memory of 4240	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	97
PID 3564 wrote to memory of 4240	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	97
PID 3564 wrote to memory of 4240	3564	2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe	97
PID 2444 wrote to memory of 5024	2444	neahyxbf.exe	102
PID 2444 wrote to memory of 5024	2444	neahyxbf.exe	102
PID 2444 wrote to memory of 5024	2444	neahyxbf.exe	102
PID 2444 wrote to memory of 5024	2444	neahyxbf.exe	102
PID 2444 wrote to memory of 5024	2444	neahyxbf.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\scbwdaon\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\neahyxbf.exe" C:\Windows\SysWOW64\scbwdaon\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create scbwdaon binPath= "C:\Windows\SysWOW64\scbwdaon\neahyxbf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description scbwdaon "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start scbwdaon
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4044
- 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:4240
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 888
  2⤵
  - Program crash
  PID:2028

C:\Windows\SysWOW64\scbwdaon\neahyxbf.exe
C:\Windows\SysWOW64\scbwdaon\neahyxbf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_985d5a3c0a38f3438ecf1ee322381de5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 512
  2⤵
  - Program crash
  PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3564 -ip 3564
1⤵
PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2444 -ip 2444
1⤵
PID:4464

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\neahyxbf.exe

Filesize
13.1MB

MD5
6b45605795d36b253726d5bbc7c0d633

SHA1
9a81fd3e0ecb7386be6807caf6f8d640e2547cf3

SHA256
05ca466cf668e5ce8e764517b93e327205f6a81ecbd69e0918188a80743239aa

SHA512
738d5dc682f17694b27bb49779e423dcb2d807b0e266650d23f91ce74e1f53cbe557a1ac3a4887568a755477ac021f2c9bfdb1f413c225116f5f43dbd85f3485

Download Submit
memory/2444-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2444-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2444-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2444-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3564-8-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/3564-1-0x0000000000480000-0x0000000000580000-memory.dmp

Filesize
1024KB

Download
memory/3564-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3564-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3564-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3564-2-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/5024-14-0x0000000001030000-0x0000000001045000-memory.dmp

Filesize
84KB

Download
memory/5024-16-0x0000000001030000-0x0000000001045000-memory.dmp

Filesize
84KB

Download
memory/5024-17-0x0000000001030000-0x0000000001045000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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