tofsee | 8c11f0f40caee2900260bfed0fedcd32674ce49be665dc9ccc0d37dba58d9259

Analysis

max time kernel
150s
max time network
155s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/10/2026, 12:30

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General

Target
2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe
Size 13.1MB
Sample261002-ppldeswxev
SHA256 8c11f0f40caee2900260bfed0fedcd32674ce49be665dc9ccc0d37dba58d9259
MD5 6e6bc398dabc4c9849e8d46933daf93e
SHA1 f1d575bcbb62f73115d2b02935409ead70786b70
SHA512 c7d1e6037556b0604069192e264f065692f59070be252102efc76202ba920f5afb7b75ac65bfc8cd1bc1af54831dc4e96832aee6c6ac6577a7917979e744a537
SSDEEP 6144:VHjBpYqdviTbDwkFyXapKagxexexexexexexexexexexexexexexexexexexexez:V3Yqd6B5wP
TLSH
T14CD6447392E13C44F6768E319E2F86E8361EFD919F1567EB12087A0B14711ADC1E2B1E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution tofsee persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

nidavellir.top
jotunheim.name

Signatures

Family: Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\tzczdfvo = "0"	svchost.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3676	netsh.exe

Sets service image path in registry 3 TTPs 1 IoCs

This determines the executable launched when a service starts. It can be used to establish persistence.

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\tzczdfvo\ImagePath = "C:\\Windows\\SysWOW64\\tzczdfvo\\eabjhsks.exe"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
5660	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4160	eabjhsks.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4160 set thread context of 5660	4160	eabjhsks.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
3928	sc.exe
1532	sc.exe
4624	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

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3368	cmd.exe
3424	cmd.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5436	2408	WerFault.exe	89
244	4160	WerFault.exe	101

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	eabjhsks.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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 3368	2408	2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	90
PID 2408 wrote to memory of 3424	2408	2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	92
PID 2408 wrote to memory of 3928	2408	2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	94
PID 2408 wrote to memory of 1532	2408	2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	96
PID 2408 wrote to memory of 4624	2408	2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	99
PID 2408 wrote to memory of 3676	2408	2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	102
PID 4160 wrote to memory of 5660	4160	eabjhsks.exe	107
PID 4160 wrote to memory of 5660	4160	eabjhsks.exe	107

C:\Users\Admin\AppData\Local\Temp\2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tzczdfvo\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:3368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eabjhsks.exe" C:\Windows\SysWOW64\tzczdfvo\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:3424
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tzczdfvo binPath= "C:\Windows\SysWOW64\tzczdfvo\eabjhsks.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tzczdfvo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tzczdfvo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4624
- 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:3676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 1084
  2⤵
  - Program crash
  PID:5436

C:\Windows\SysWOW64\tzczdfvo\eabjhsks.exe
C:\Windows\SysWOW64\tzczdfvo\eabjhsks.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-10-01_6e6bc398dabc4c9849e8d46933daf93e_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4160
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4160 -s 600
  2⤵
  - Program crash
  PID:244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2408 -ip 2408
1⤵
PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4160 -ip 4160
1⤵
PID:6024

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

eabjhsks.exe

Path C:\Users\Admin\AppData\Local\Temp\eabjhsks.exe
Size 13.6MB
SHA256 6ca12fb6e6c7add7b2123103a78a21b44f42ffb4ebb935ffd870ce5c1d1d0f74
MD5 cb1f2e1c1bd82671db672b406e582564
SHA1 72f516181c5a2abe480501d62015ea362499b6ab
SHA512 e6e71b07a3f43b8db7a2f37e892c7f18d0f4c6e34f0bf9dab358c3df3661e3702c8a4f19bd0406d1374fd145ad3ede96d0a9c6d5a74f36ec1c1bf29f1cda5e20
SSDEEP 6144:9HjBpYqdviTbDwkFyXapKagxexexexexexexexexexexexexexexexexexexexeT:93Yqd6B5wv
TLSH
T102E6447392E13C44F6768E319E2F86E8361EFD919F1567EB12087A0B14711ADC1E2B1E
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2408-0-0x0000000000400000-0x00000000004AF000-memory.dmp

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memory/2408-2-0x0000000000710000-0x0000000000810000-memory.dmp

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memory/2408-3-0x0000000000650000-0x0000000000663000-memory.dmp

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memory/2408-11-0x0000000000650000-0x0000000000663000-memory.dmp

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memory/2408-10-0x0000000000400000-0x00000000004AF000-memory.dmp

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memory/4160-8-0x0000000000400000-0x00000000004AF000-memory.dmp

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memory/4160-17-0x0000000000400000-0x00000000004AF000-memory.dmp

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memory/5660-15-0x00000000005D0000-0x00000000005E5000-memory.dmp

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memory/5660-16-0x00000000005D0000-0x00000000005E5000-memory.dmp

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memory/5660-13-0x00000000005D0000-0x00000000005E5000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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