tofsee | 2831342be8dc1cb98c6b382daf5cf8fe3bd7ca3bd495a42ad419e000ccb44d2f

Analysis

max time kernel
148s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/08/2026, 01:17

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General

Target
2026-08-01_15606eeacaf335b5439894e0a101c790_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe
Size 14.8MB
Sample260802-bnfjwsbk7x
SHA256 2831342be8dc1cb98c6b382daf5cf8fe3bd7ca3bd495a42ad419e000ccb44d2f
MD5 15606eeacaf335b5439894e0a101c790
SHA1 1765cf1b265c610ad84578bf60c21e2186d42fdb
SHA512 b4480e9ee9bb981e1116e215797c89194a336c5a76e0cdd7fefa1cb99195decd5b9897402c83aa607436ee6eebae91dfd1e88ed356b5f6ac50a17e4a9f7ad1cd
SSDEEP 3072:Sx1qIXgWFcqfzgb7diGkvwRDk3RcimxnH6k3/m2iTxBMqX6se+TJLODJRODwAODB:qqUgWFc/FiGkv6kBc4k3/m1BMquB
TLSH
T11EF675A225DC08CAE59E5B3D34733B278DA0B770482A546068C4FACF5E9ECD7165C7B2
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\qszngemk = "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
3272	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\qszngemk\ImagePath = "C:\\Windows\\SysWOW64\\qszngemk\\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
6412	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
6204	aomcvtb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 6204 set thread context of 6412	6204	aomcvtb.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
6536	sc.exe
3040	sc.exe
5508	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
2916	cmd.exe
6120	cmd.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4356	6204	WerFault.exe	101
5988	1232	WerFault.exe	89

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	2026-08-01_15606eeacaf335b5439894e0a101c790_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	aomcvtb.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 2916	1232	2026-08-01_15606eeacaf335b5439894e0a101c790_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	90
PID 1232 wrote to memory of 6120	1232	2026-08-01_15606eeacaf335b5439894e0a101c790_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	92
PID 1232 wrote to memory of 5508	1232	2026-08-01_15606eeacaf335b5439894e0a101c790_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	94
PID 1232 wrote to memory of 6536	1232	2026-08-01_15606eeacaf335b5439894e0a101c790_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	97
PID 1232 wrote to memory of 3040	1232	2026-08-01_15606eeacaf335b5439894e0a101c790_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	99
PID 1232 wrote to memory of 3272	1232	2026-08-01_15606eeacaf335b5439894e0a101c790_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe	102
PID 6204 wrote to memory of 6412	6204	aomcvtb.exe	106
PID 6204 wrote to memory of 6412	6204	aomcvtb.exe	106

C:\Users\Admin\AppData\Local\Temp\2026-08-01_15606eeacaf335b5439894e0a101c790_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-01_15606eeacaf335b5439894e0a101c790_amadey_elex_rhadamanthys_smoke-loader_stealc_tofsee.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qszngemk\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\aomcvtb.exe" C:\Windows\SysWOW64\qszngemk\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:6120
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qszngemk binPath= "C:\Windows\SysWOW64\qszngemk\aomcvtb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-08-01_15606eeacaf335b5439894e0a101c790_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:5508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qszngemk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:6536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qszngemk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3040
- 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:3272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1232 -s 1100
  2⤵
  - Program crash
  PID:5988

C:\Windows\SysWOW64\qszngemk\aomcvtb.exe
C:\Windows\SysWOW64\qszngemk\aomcvtb.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-08-01_15606eeacaf335b5439894e0a101c790_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:6204
- 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:6412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 6204 -s 612
  2⤵
  - Program crash
  PID:4356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1232 -ip 1232
1⤵
PID:4088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 6204 -ip 6204
1⤵
PID:3696

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

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 14.0MB
SHA256 a0c97c2309428b0d606e67ffec0c978370e86902a64ea96022156da7dfdc64a3
MD5 18476b1ddc514536eab60f6365d583c4
SHA1 538f8e0ba06f058894d4450ad36322d9e835b335
SHA512 6de64e7718523629f7f422b29b063d79dc693cf0f2ba4507a76a29cd033cc2befd0c6a6e1127fa7b2be395c7a95197273a9cd1eb03e83b45f562d2d72619118f
SSDEEP 3072:Ux1qIXgWFcqfzgb7diGkvwRDk3RcimxnH6k3/m2iTxBMqX6se+TJLODJRODwAODr:EqUgWFc/FiGkv6kBc4k3/m1BMqur
TLSH
T17FE675A225DC08CAE59E5B3D34733B278DA0B770482A546068C4FACF5E9ECD7165C7B2
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1232-17-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/1232-3-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/1232-0-0x00000000004B2000-0x00000000004B3000-memory.dmp

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memory/1232-1-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/6204-9-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/6204-8-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/6204-15-0x0000000000400000-0x00000000004BE000-memory.dmp

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memory/6412-10-0x0000000000B20000-0x0000000000B35000-memory.dmp

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memory/6412-13-0x0000000000B20000-0x0000000000B35000-memory.dmp

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memory/6412-18-0x0000000000B20000-0x0000000000B35000-memory.dmp

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memory/6412-19-0x0000000000B20000-0x0000000000B35000-memory.dmp

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memory/6412-20-0x0000000000B20000-0x0000000000B35000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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