tofsee | 884f595e971bded9553700071a5d763d41150888c8b6edc9b0fa4519065e1c25

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
05/08/2026, 18:40

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General

Target
2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
Size 11.7MB
Sample260805-xbfvsatema
SHA256 884f595e971bded9553700071a5d763d41150888c8b6edc9b0fa4519065e1c25
MD5 47a98bc5e9aa07c4d30963ce3506865e
SHA1 ba42ec75eb68efc4049a0a0d838a1a2395309f84
SHA512 29a2878f3b0bdc2d4176d680c7539d97f725d4d61ac218e91b72de556e7d7223d15d7d36ac7991dcfd711de6c685190f6f89fc01704d54a3a3f107f41c2e1f55
SSDEEP 49152:Ni2222222222222222222222222222222222222222222222222222222222222X:
TLSH
T185C63B12C623CE2EE4B4933EFB9C77BE68DD8AF142C0154BA935B4E0EC2915D49D560B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution tofsee persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

svartalfheim.top
jotunheim.name

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2680	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\btuouusa\ImagePath = "C:\\Windows\\SysWOW64\\btuouusa\\uashmfw.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-1-5-21-540052884-2969440504-464782435-1000\Control Panel\International\Geo\Nation	2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Deletes itself 1 IoCs

pid	Process
1860	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4672	uashmfw.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 4672 set thread context of 1860	4672	uashmfw.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
3776	sc.exe
4936	sc.exe
2560	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
2700	cmd.exe
916	cmd.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2600	4532	WerFault.exe	82
556	4672	WerFault.exe	96

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	2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.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
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	uashmfw.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 2700	4532	2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	83
PID 4532 wrote to memory of 916	4532	2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	85
PID 4532 wrote to memory of 3776	4532	2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	87
PID 4532 wrote to memory of 4936	4532	2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	91
PID 4532 wrote to memory of 2560	4532	2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	94
PID 4532 wrote to memory of 2680	4532	2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	97
PID 4672 wrote to memory of 1860	4672	uashmfw.exe	104
PID 4672 wrote to memory of 1860	4672	uashmfw.exe	104

C:\Users\Admin\AppData\Local\Temp\2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\btuouusa\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uashmfw.exe" C:\Windows\SysWOW64\btuouusa\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create btuouusa binPath= "C:\Windows\SysWOW64\btuouusa\uashmfw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description btuouusa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start btuouusa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2560
- 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:2680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1224
  2⤵
  - Program crash
  PID:2600

C:\Windows\SysWOW64\btuouusa\uashmfw.exe
C:\Windows\SysWOW64\btuouusa\uashmfw.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-08-05_47a98bc5e9aa07c4d30963ce3506865e_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1860
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4672 -s 560
  2⤵
  - Program crash
  PID:556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4532 -ip 4532
1⤵
PID:3488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4672 -ip 4672
1⤵
PID:1096

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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

uashmfw.exe

Path C:\Users\Admin\AppData\Local\Temp\uashmfw.exe
Size 11.0MB
SHA256 3d109c6c5539690532a5859c0c09f0d1100590a5a5d5399bf07aa74a0f07253a
MD5 8a8d8847ababa1295690656ea2931984
SHA1 2a08ff55aa9490b9a76f9060b5b2dd2f34d7d495
SHA512 453acd8880a5fd2642153b087de8c3664ad8ad5ca965170a40a4b7b4de6000620a647b844accdaad81ef672a02ccf859d22b2df1dc7393b6ba40325b8ec2a9db
SSDEEP 49152:8i2222222222222222222222222222222222222222222222222222222222222G:
TLSH
T113C63B12C623CE2EE4B4933EFB9C77BE68DD8AF142C0154BA935B4E0EC2915D49D560B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1860-10-0x00000000010F0000-0x0000000001105000-memory.dmp

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memory/1860-12-0x00000000010F0000-0x0000000001105000-memory.dmp

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memory/1860-13-0x00000000010F0000-0x0000000001105000-memory.dmp

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memory/4532-2-0x00000000006C0000-0x00000000006D3000-memory.dmp

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memory/4532-1-0x0000000000710000-0x0000000000810000-memory.dmp

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memory/4532-7-0x0000000000400000-0x000000000056A000-memory.dmp

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memory/4532-8-0x00000000006C0000-0x00000000006D3000-memory.dmp

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memory/4532-15-0x0000000000710000-0x0000000000810000-memory.dmp

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memory/4672-9-0x00000000007F0000-0x00000000008F0000-memory.dmp

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memory/4672-14-0x0000000000400000-0x000000000056A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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