tofsee | 888d62368bebdb44f8a2a6e127e599b27fed9f79061141a1ba42769b56839335

Analysis

max time kernel
150s
max time network
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
29/06/2026, 23:40

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General

Target
2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe
Size 10.9MB
Sample260629-3nvglaaz5p
SHA256 888d62368bebdb44f8a2a6e127e599b27fed9f79061141a1ba42769b56839335
MD5 2145044a62e4491c900236c0eda640e1
SHA1 f22ec303df0618ce9a27da6fd8cd759b35066900
SHA512 d2ced45a8c124958e7a409a6bb7f417d13f75221cbbcd89f85f9c86886ea604de7d38e2a4fcc1cf9936bf1c42a6464a56c9957004a3394008fd761e0f42104f7
SSDEEP 3072:ax1qIXgWFcqfzgb7diGkvwRDk3RcimxnH6k3/m2iTxBMqX6se+TJLODJRODwAODL:SqUgWFc/FiGkv6kBc4k3/m1BMquL
TLSH
T1F1B675A225DC08CAE59E5B3D34733B278DA0B770482A546068C4FACF5E9ECD7165C7B2
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\inybngff = "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
5252	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\inybngff\ImagePath = "C:\\Windows\\SysWOW64\\inybngff\\aomcvtb.exe"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Deletes itself 1 IoCs

pid	Process
1736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1636	aomcvtb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1636 set thread context of 1736	1636	aomcvtb.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
5780	sc.exe
2704	sc.exe
928	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
6700	1636	WerFault.exe	99
5036	5012	WerFault.exe	87

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	aomcvtb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 1600	5012	2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	88
PID 5012 wrote to memory of 1660	5012	2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	90
PID 5012 wrote to memory of 5780	5012	2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	92
PID 5012 wrote to memory of 2704	5012	2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	94
PID 5012 wrote to memory of 928	5012	2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	97
PID 5012 wrote to memory of 5252	5012	2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	100
PID 1636 wrote to memory of 1736	1636	aomcvtb.exe	103
PID 1636 wrote to memory of 1736	1636	aomcvtb.exe	103

C:\Users\Admin\AppData\Local\Temp\2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-25_2145044a62e4491c900236c0eda640e1_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\inybngff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1600
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\aomcvtb.exe" C:\Windows\SysWOW64\inybngff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create inybngff binPath= "C:\Windows\SysWOW64\inybngff\aomcvtb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-06-25_2145044a62e4491c900236c0eda640e1_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:5780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description inybngff "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start inybngff
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:928
- 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:5252
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 1104
  2⤵
  - Program crash
  PID:5036

C:\Windows\SysWOW64\inybngff\aomcvtb.exe
C:\Windows\SysWOW64\inybngff\aomcvtb.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-06-25_2145044a62e4491c900236c0eda640e1_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:1636
- 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:1736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1636 -s 612
  2⤵
  - Program crash
  PID:6700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1636 -ip 1636
1⤵
PID:2872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 5012 -ip 5012
1⤵
PID:3988

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

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

aomcvtb.exe

Path C:\Users\Admin\AppData\Local\Temp\aomcvtb.exe
Size 11.1MB
SHA256 f7d8196d8a4415ceaad03cd30e65672b65eb2db7e2b2634241ab55ed981d56e4
MD5 80e8d246538e3273b8e507587e6bd88f
SHA1 7846c93c69ff12a20a8450837ea35bf3c9c39496
SHA512 7db5361f2d7f6a4f00433b92143620e4288670784065abfeb8082171760696210da4343f5c1ad68966ec62af71b45da92f2129960babd45842002fa9495defc4
SSDEEP 3072:bx1qIXgWFcqfzgb7diGkvwRDk3RcimxnH6k3/m2iTxBMqX6se+TJLODJRODwAODr:PqUgWFc/FiGkv6kBc4k3/m1BMqur
TLSH
T1E6C675A225DC08CAE59E5B3D34733B278DA0B770482A546068C4FACF5E9ECD7165C7B2
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1636-15-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/1636-9-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/1736-20-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/1736-19-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/1736-18-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/1736-10-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/1736-13-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/5012-4-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/5012-17-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/5012-0-0x00000000004B2000-0x00000000004B3000-memory.dmp

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memory/5012-3-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/5012-1-0x0000000000400000-0x00000000004BE000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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