tofsee | a1516024e8883b881f30756202a6304110ca10c6ccaad243d1d72d1522624907

Analysis

max time kernel
150s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
22/07/2026, 05:55

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General

Target
2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
Size 13.4MB
Sample260722-gml8yabb69
SHA256 a1516024e8883b881f30756202a6304110ca10c6ccaad243d1d72d1522624907
MD5 2e59b2ced053c0c449f9d4b4dc8319a8
SHA1 e129f4c3bc3dd4dfc05a41257322c52d04fe50f9
SHA512 3fdd66dab6b168ba1a6c40706f8b24312f9772c3b8c82229e5be4dc7b5a8fcd23ac671f0ecb6cf44c5bb1ef9cbb5345dae8a27d7056e1b0b14efded06428bcb7
SSDEEP 3072:ksXLLViObJLO9Dpqs4XzM9lOp7LCHI3lwQ4fVUxfhuC9+QoZ5G2F5QoQb:FLLViWJLO1zczM9lOpSHILcV8N9+Ay
TLSH
T1CFE629388A608555C03ED6BE320CBB4186BEEE81E384997A26074DD4DB235F54DDDF2B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution tofsee persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

vanaheim.cn
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\pwxskry = "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
1700	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\pwxskry\ImagePath = "C:\\Windows\\SysWOW64\\pwxskry\\udjushz.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
4988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4480	udjushz.exe

Stops running service(s) 4 TTPs
defense_evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4480 set thread context of 4988	4480	udjushz.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
5472	sc.exe
3548	sc.exe
4552	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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
4428	cmd.exe
4004	cmd.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3684	4480	WerFault.exe	99
1624	1876	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	2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_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	udjushz.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 4428	1876	2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	88
PID 1876 wrote to memory of 4004	1876	2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	90
PID 1876 wrote to memory of 5472	1876	2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	92
PID 1876 wrote to memory of 3548	1876	2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	94
PID 1876 wrote to memory of 4552	1876	2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	97
PID 4480 wrote to memory of 4988	4480	udjushz.exe	100
PID 4480 wrote to memory of 4988	4480	udjushz.exe	100
PID 1876 wrote to memory of 1700	1876	2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	102

C:\Users\Admin\AppData\Local\Temp\2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pwxskry\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\udjushz.exe" C:\Windows\SysWOW64\pwxskry\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pwxskry binPath= "C:\Windows\SysWOW64\pwxskry\udjushz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pwxskry "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pwxskry
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4552
- 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:1700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1876 -s 1100
  2⤵
  - Program crash
  PID:1624

C:\Windows\SysWOW64\pwxskry\udjushz.exe
C:\Windows\SysWOW64\pwxskry\udjushz.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-07-22_2e59b2ced053c0c449f9d4b4dc8319a8_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4480
- 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:4988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 592
  2⤵
  - Program crash
  PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1876 -ip 1876
1⤵
PID:2788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4480 -ip 4480
1⤵
PID:1120

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

Service Stop

T1489

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Downloads

udjushz.exe

Path C:\Users\Admin\AppData\Local\Temp\udjushz.exe
Size 10.8MB
SHA256 b32717ab1e97ef715f1e8d58b0c8364cb520d5344c94a960896bd1df6268adc9
MD5 2dad2ff2c3b36c82fbe447ba5512cab9
SHA1 0bab5e321fb32b2d62b91ee1bd015e48ce4d8297
SHA512 1d89095f3c06aa4d5357aa38dc705b9ef6d8388da9c02bf86912e0a53221306a6c39eb8303b55be41804df79ba5b88f537cff2abe4d6006633306d3a50e9406c
SSDEEP 3072:SsXLLViObJLO9Dpqs4XzM9lOp7LCHI3lwQ4fVUxfhuC9+QoZ5G2F5QoQb:7LLViWJLO1zczM9lOpSHILcV8N9+Ay
TLSH
T158B629348A608555C03ED6BE320CBB4186BEEE81E3849A7A26074DD4DB235F54DDDF2B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1876-1-0x0000000000750000-0x0000000000850000-memory.dmp

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memory/1876-2-0x0000000002270000-0x0000000002283000-memory.dmp

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memory/1876-13-0x0000000000400000-0x00000000004F7000-memory.dmp

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memory/4480-8-0x0000000000F40000-0x0000000000F53000-memory.dmp

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memory/4480-7-0x00000000006C0000-0x00000000007C0000-memory.dmp

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memory/4480-14-0x0000000000400000-0x00000000004F7000-memory.dmp

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memory/4988-9-0x0000000000D90000-0x0000000000DA5000-memory.dmp

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memory/4988-12-0x0000000000D90000-0x0000000000DA5000-memory.dmp

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memory/4988-15-0x0000000000D90000-0x0000000000DA5000-memory.dmp

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memory/4988-16-0x0000000000D90000-0x0000000000DA5000-memory.dmp

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memory/4988-17-0x0000000000D90000-0x0000000000DA5000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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