tofsee | d296b7c77676b8123039d3e50eb3d651ccfe9731bffca01a64563c32e2f70dc4

General

Target

2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe
Size

10.3MB
MD5

e781a1bcdb8852c0f8cf2da6a6331cba
SHA1

75680e24b2ae2cbd42bdb2b25f016489c5c6a539
SHA256

d296b7c77676b8123039d3e50eb3d651ccfe9731bffca01a64563c32e2f70dc4
SHA512

5b6f6b20b854a1c3f40481140d8591da2c4343cd67a7381835bb568539efd5926191ccd3da554c14c0f2904c8b63a70da0d9e88f6cb05a79cf40e2b63fc60db7
SSDEEP

6144:VLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQR:mTYe+D2jFu+iZoUFhAzc

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
31	1988	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1212	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\kufjwsmd\ImagePath = "C:\\Windows\\SysWOW64\\kufjwsmd\\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-1-5-21-3296967594-3563063956-581523229-1000\Control Panel\International\Geo\Nation	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe

Deletes itself 1 IoCs

pid	Process
5060	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5036	lykhansc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5036 set thread context of 5060	5036	lykhansc.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
2700	sc.exe
1996	sc.exe
2800	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
2792	5036	WerFault.exe	101
980	1452	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 10 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	lykhansc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_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

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
728	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 1484	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	91
PID 1452 wrote to memory of 1484	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	91
PID 1452 wrote to memory of 1484	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	91
PID 1452 wrote to memory of 1176	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	93
PID 1452 wrote to memory of 1176	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	93
PID 1452 wrote to memory of 1176	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	93
PID 1452 wrote to memory of 2800	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	95
PID 1452 wrote to memory of 2800	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	95
PID 1452 wrote to memory of 2800	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	95
PID 1452 wrote to memory of 2700	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	97
PID 1452 wrote to memory of 2700	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	97
PID 1452 wrote to memory of 2700	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	97
PID 1452 wrote to memory of 1996	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	99
PID 1452 wrote to memory of 1996	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	99
PID 1452 wrote to memory of 1996	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	99
PID 1452 wrote to memory of 1212	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	102
PID 1452 wrote to memory of 1212	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	102
PID 1452 wrote to memory of 1212	1452	2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe	102
PID 5036 wrote to memory of 5060	5036	lykhansc.exe	105
PID 5036 wrote to memory of 5060	5036	lykhansc.exe	105
PID 5036 wrote to memory of 5060	5036	lykhansc.exe	105
PID 5036 wrote to memory of 5060	5036	lykhansc.exe	105
PID 5036 wrote to memory of 5060	5036	lykhansc.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kufjwsmd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lykhansc.exe" C:\Windows\SysWOW64\kufjwsmd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1176
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kufjwsmd binPath= "C:\Windows\SysWOW64\kufjwsmd\lykhansc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kufjwsmd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kufjwsmd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1996
- 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:1212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1452 -s 1252
  2⤵
  - Program crash
  PID:980

C:\Windows\SysWOW64\kufjwsmd\lykhansc.exe
C:\Windows\SysWOW64\kufjwsmd\lykhansc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_e781a1bcdb8852c0f8cf2da6a6331cba_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5036 -s 512
  2⤵
  - Program crash
  PID:2792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1452 -ip 1452
1⤵
PID:3916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5036 -ip 5036
1⤵
PID:4536

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODIxNjkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1MzE4NTEwMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTU5MDgzNDY4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:728

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\lykhansc.exe

Filesize
12.4MB

MD5
11b4eeeb43f457ac9506132ddc099053

SHA1
adb3a92e20024bbc18f17171cb02fa2e10f3ab2a

SHA256
1cc7b3659fc9aa099764da9f30cd09f6e846fb21bc78236d9a1c7c942d901387

SHA512
fe9dfa85fcb0cda756719fb54971cd6999e2095b64cecdfe1251355798a18cd4c27ea36b4c721d55f615cab31ddf3576398d31a556043a40d15cb2d6754bf8f1

Download Submit
memory/1452-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1452-2-0x0000000000620000-0x0000000000633000-memory.dmp

Filesize
76KB

Download
memory/1452-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1452-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/1452-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1452-18-0x0000000000620000-0x0000000000633000-memory.dmp

Filesize
76KB

Download
memory/5036-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5036-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5036-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5036-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5060-14-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/5060-11-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/5060-20-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/5060-21-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/5060-22-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads