tofsee | 79a111853adaf1352195d5271abe81021bece7d1d2f71a212f856100dccb827a

General

Target

2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe
Size

12.5MB
MD5

9ff23ff2ac3ab0e8c68016bf8442d06e
SHA1

bdc37abc387c38e8621afd6237ccbf94152bc0a7
SHA256

79a111853adaf1352195d5271abe81021bece7d1d2f71a212f856100dccb827a
SHA512

dc5505c990e58c7b31845584674d868793d9585f713488e90e73677257d21a6202ee896808943b097a60505b2b143ea23499f11c6e080ea5c36648d3ddbec35d
SSDEEP

24576:LXcCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCV:w

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
4640	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\gcauerq\ImagePath = "C:\\Windows\\SysWOW64\\gcauerq\\gftvjghz.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-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
4056	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1524	gftvjghz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1524 set thread context of 4056	1524	gftvjghz.exe	109

Launches sc.exe 3 IoCs

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

pid	Process
3236	sc.exe
5044	sc.exe
3844	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
2080	3012	WerFault.exe	85
4796	1524	WerFault.exe	103

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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gftvjghz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 4560	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	89
PID 3012 wrote to memory of 4560	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	89
PID 3012 wrote to memory of 4560	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	89
PID 3012 wrote to memory of 1800	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	91
PID 3012 wrote to memory of 1800	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	91
PID 3012 wrote to memory of 1800	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	91
PID 3012 wrote to memory of 5044	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	95
PID 3012 wrote to memory of 5044	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	95
PID 3012 wrote to memory of 5044	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	95
PID 3012 wrote to memory of 3844	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	97
PID 3012 wrote to memory of 3844	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	97
PID 3012 wrote to memory of 3844	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	97
PID 3012 wrote to memory of 3236	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	101
PID 3012 wrote to memory of 3236	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	101
PID 3012 wrote to memory of 3236	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	101
PID 3012 wrote to memory of 4640	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	104
PID 3012 wrote to memory of 4640	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	104
PID 3012 wrote to memory of 4640	3012	2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe	104
PID 1524 wrote to memory of 4056	1524	gftvjghz.exe	109
PID 1524 wrote to memory of 4056	1524	gftvjghz.exe	109
PID 1524 wrote to memory of 4056	1524	gftvjghz.exe	109
PID 1524 wrote to memory of 4056	1524	gftvjghz.exe	109
PID 1524 wrote to memory of 4056	1524	gftvjghz.exe	109

C:\Users\Admin\AppData\Local\Temp\2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gcauerq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gftvjghz.exe" C:\Windows\SysWOW64\gcauerq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gcauerq binPath= "C:\Windows\SysWOW64\gcauerq\gftvjghz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gcauerq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gcauerq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3236
- 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:4640
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 1268
  2⤵
  - Program crash
  PID:2080

C:\Windows\SysWOW64\gcauerq\gftvjghz.exe
C:\Windows\SysWOW64\gcauerq\gftvjghz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_9ff23ff2ac3ab0e8c68016bf8442d06e_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1524 -s 512
  2⤵
  - Program crash
  PID:4796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3012 -ip 3012
1⤵
PID:4808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1524 -ip 1524
1⤵
PID:4952

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\gftvjghz.exe

Filesize
14.6MB

MD5
296dc09447248d3836dbf4adf6c2a972

SHA1
62f8ac39cc1700414d4e2ae46c67eb5fa36abe60

SHA256
c956ac981a3966c6e4c5c722d599b68e43854e0f1374e9aaab86305fe17d5d80

SHA512
c744e5ae731b618b3860f4dca69b838f5caaf42618bca5411b465749c3b39bb252dfc353af4ce1a4ed64f9de0dfbf05eaa5ba0c58857f461ed5d4b93acfde592

Download Submit
memory/1524-15-0x0000000000400000-0x0000000001AA0000-memory.dmp

Filesize
22.6MB

Download
memory/3012-1-0x0000000001C80000-0x0000000001D80000-memory.dmp

Filesize
1024KB

Download
memory/3012-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3012-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3012-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3012-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3012-7-0x0000000000400000-0x0000000001AA0000-memory.dmp

Filesize
22.6MB

Download
memory/4056-11-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/4056-13-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download
memory/4056-14-0x0000000000530000-0x0000000000545000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads