tofsee | d6c45f67357a8fd894dce09c6e8719ab58bc803af55567a682c4c976619f5a06

General

Target

2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe
Size

12.1MB
MD5

bc6e5d90c52828a3e61150cfa7b1cc0c
SHA1

1ca9759679efdee799039aa008e582cd71239575
SHA256

d6c45f67357a8fd894dce09c6e8719ab58bc803af55567a682c4c976619f5a06
SHA512

798ac75e4eabbc4dc987a1c533f26e9d43d3e27d1bca9ce38cced1bad1c7efe3ceca1d765fe47f0ee0498bd18f62ab0dcb8bd70101c2772fe188e5a0c35be87d
SSDEEP

3072:5CLVCtykRk5Kws3LQfNeBVe/KyNDrr91Q:4eyki5KnUfNeBVe/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
5060	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\lhbkhduz\ImagePath = "C:\\Windows\\SysWOW64\\lhbkhduz\\gidjcpz.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-1-5-21-83325578-304917428-1200496059-1000\Control Panel\International\Geo\Nation	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
5064	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1716	gidjcpz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1716 set thread context of 5064	1716	gidjcpz.exe	111

Launches sc.exe 3 IoCs

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

pid	Process
1416	sc.exe
116	sc.exe
712	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
2484	3864	WerFault.exe	85
1552	1716	WerFault.exe	105

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	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.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
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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gidjcpz.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3864 wrote to memory of 1348	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	91
PID 3864 wrote to memory of 1348	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	91
PID 3864 wrote to memory of 1348	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	91
PID 3864 wrote to memory of 2752	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	93
PID 3864 wrote to memory of 2752	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	93
PID 3864 wrote to memory of 2752	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	93
PID 3864 wrote to memory of 1416	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	97
PID 3864 wrote to memory of 1416	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	97
PID 3864 wrote to memory of 1416	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	97
PID 3864 wrote to memory of 116	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	99
PID 3864 wrote to memory of 116	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	99
PID 3864 wrote to memory of 116	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	99
PID 3864 wrote to memory of 712	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	103
PID 3864 wrote to memory of 712	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	103
PID 3864 wrote to memory of 712	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	103
PID 3864 wrote to memory of 5060	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	106
PID 3864 wrote to memory of 5060	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	106
PID 3864 wrote to memory of 5060	3864	2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe	106
PID 1716 wrote to memory of 5064	1716	gidjcpz.exe	111
PID 1716 wrote to memory of 5064	1716	gidjcpz.exe	111
PID 1716 wrote to memory of 5064	1716	gidjcpz.exe	111
PID 1716 wrote to memory of 5064	1716	gidjcpz.exe	111
PID 1716 wrote to memory of 5064	1716	gidjcpz.exe	111

C:\Users\Admin\AppData\Local\Temp\2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3864
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lhbkhduz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1348
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gidjcpz.exe" C:\Windows\SysWOW64\lhbkhduz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lhbkhduz binPath= "C:\Windows\SysWOW64\lhbkhduz\gidjcpz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.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 lhbkhduz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lhbkhduz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:712
- 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:5060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3864 -s 668
  2⤵
  - Program crash
  PID:2484

C:\Windows\SysWOW64\lhbkhduz\gidjcpz.exe
C:\Windows\SysWOW64\lhbkhduz\gidjcpz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_bc6e5d90c52828a3e61150cfa7b1cc0c_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 512
  2⤵
  - Program crash
  PID:1552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3864 -ip 3864
1⤵
PID:4240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1716 -ip 1716
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\gidjcpz.exe

Filesize
14.1MB

MD5
9fad35f4ddaf9d72de26dac7539a22d6

SHA1
eb553377ab70164ea03ac9d3b7f939f732b840af

SHA256
56b5a0e0312ff08d05bdbdbcf8e6d21651189d02c7c1a7f01eaf2f02c9142aa0

SHA512
08bfb441e6aea3ccaa17985643915393dfb8d22e022b4fdf187be7a5d1c113fae709bffa1e4b59c50dfa02b638a2970ee83e0378524b1638efe65041b2a46bbb

Download Submit
memory/1716-14-0x0000000000400000-0x0000000004A92000-memory.dmp

Filesize
70.6MB

Download
memory/3864-2-0x0000000004BB0000-0x0000000004BC3000-memory.dmp

Filesize
76KB

Download
memory/3864-1-0x0000000004DE0000-0x0000000004EE0000-memory.dmp

Filesize
1024KB

Download
memory/3864-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3864-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3864-8-0x0000000004BB0000-0x0000000004BC3000-memory.dmp

Filesize
76KB

Download
memory/3864-7-0x0000000000400000-0x0000000004A92000-memory.dmp

Filesize
70.6MB

Download
memory/5064-11-0x0000000000B10000-0x0000000000B25000-memory.dmp

Filesize
84KB

Download
memory/5064-13-0x0000000000B10000-0x0000000000B25000-memory.dmp

Filesize
84KB

Download
memory/5064-15-0x0000000000B10000-0x0000000000B25000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads