tofsee | 8b5a317e4866d667963374a2c73acafd3989fce97969edd0b00501f13a9daceb

General

Target

2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe
Size

13.8MB
MD5

5069176565dc2981746a77fa16c53fba
SHA1

ed2dff175469027b24f876eb93a698e769330b67
SHA256

8b5a317e4866d667963374a2c73acafd3989fce97969edd0b00501f13a9daceb
SHA512

6585f68847f03bd452b581399a4287dac5f37378854ae8c6049f0a8594a0f2486a04fa777abd2e24355783e4f1b1646bbef5660733a4d0cf7c1e9ff74ebf3dd5
SSDEEP

393216:hXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:

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
3812	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\lncucuti\ImagePath = "C:\\Windows\\SysWOW64\\lncucuti\\lykhansc.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_5069176565dc2981746a77fa16c53fba_mafia.exe

Deletes itself 1 IoCs

pid	Process
684	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4980	lykhansc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4980 set thread context of 684	4980	lykhansc.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
216	sc.exe
5000	sc.exe
4808	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

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_5069176565dc2981746a77fa16c53fba_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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lykhansc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 2804	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	86
PID 4316 wrote to memory of 2804	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	86
PID 4316 wrote to memory of 2804	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	86
PID 4316 wrote to memory of 3160	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	88
PID 4316 wrote to memory of 3160	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	88
PID 4316 wrote to memory of 3160	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	88
PID 4316 wrote to memory of 216	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	90
PID 4316 wrote to memory of 216	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	90
PID 4316 wrote to memory of 216	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	90
PID 4316 wrote to memory of 5000	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	92
PID 4316 wrote to memory of 5000	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	92
PID 4316 wrote to memory of 5000	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	92
PID 4316 wrote to memory of 4808	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	94
PID 4316 wrote to memory of 4808	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	94
PID 4316 wrote to memory of 4808	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	94
PID 4316 wrote to memory of 3812	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	97
PID 4316 wrote to memory of 3812	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	97
PID 4316 wrote to memory of 3812	4316	2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe	97
PID 4980 wrote to memory of 684	4980	lykhansc.exe	98
PID 4980 wrote to memory of 684	4980	lykhansc.exe	98
PID 4980 wrote to memory of 684	4980	lykhansc.exe	98
PID 4980 wrote to memory of 684	4980	lykhansc.exe	98
PID 4980 wrote to memory of 684	4980	lykhansc.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lncucuti\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lykhansc.exe" C:\Windows\SysWOW64\lncucuti\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lncucuti binPath= "C:\Windows\SysWOW64\lncucuti\lykhansc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:216
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lncucuti "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lncucuti
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4808
- 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:3812

C:\Windows\SysWOW64\lncucuti\lykhansc.exe
C:\Windows\SysWOW64\lncucuti\lykhansc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_5069176565dc2981746a77fa16c53fba_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:684

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\lykhansc.exe

Filesize
14.3MB

MD5
f8429dd27d101dae346cb33e28de6b1a

SHA1
e3057294ef7ab61aaae1638f1be1c627c72d90fb

SHA256
3d65f44f3c771762f2f0bf7a4f5d4db1969985ed5c382e29e988159001dc5dc6

SHA512
e3d32f3be3a2b1e3bfae504bc5572842773c4c2ba1a377fe95d8a5aa6a2a8e9cf2e8843b07fd1a209cbe2fe3f47f339d59709975261b7da5d508ac9eb89907e7

Download Submit
memory/684-16-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/684-20-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/684-21-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/684-17-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/684-13-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4316-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4316-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/4316-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4316-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4316-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4316-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4980-19-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4980-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4980-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads