tofsee | 6637358fa535ee0b109ec27993795d0fdda5a1bcb784634671a34d70d7f48181

Analysis

max time kernel
150s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260618-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
29/06/2026, 08:34

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General

Target
2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
Size 12.0MB
Sample260629-kghkcaaz6j
SHA256 6637358fa535ee0b109ec27993795d0fdda5a1bcb784634671a34d70d7f48181
MD5 3559ef07616467d0749cfbf9faf22318
SHA1 736226013619ba41a46fcfe11c6ac20b014086c4
SHA512 f5c7e49d25fb0e3e3f130d29c988c946963785b24ec90047790cfb24f2f1073afbcdebc320227ac628919af1cdb26970c6bdaf7c675402dfc8896c9fb967193a
SSDEEP 6144:s+DLnCQj29e/dCOhIctzibHYALvULoA14444444444444444444444444444444f:s+D7fj2816cteYLoA
TLSH
T1B0C62A785A962D56C3BF527CFE5CBB011DAC9FA2FA38A0156681EDC00013B951CA63DF
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

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\kvzndwrj = "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
5056	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\kvzndwrj\ImagePath = "C:\\Windows\\SysWOW64\\kvzndwrj\\hnavovid.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
3916	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2072	hnavovid.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 2072 set thread context of 3916	2072	hnavovid.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
5856	sc.exe
5320	sc.exe
5020	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

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	cmd.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	hnavovid.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 1392	4888	2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	89
PID 4888 wrote to memory of 4064	4888	2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	91
PID 4888 wrote to memory of 5020	4888	2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	93
PID 4888 wrote to memory of 5856	4888	2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	96
PID 4888 wrote to memory of 5320	4888	2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	98
PID 4888 wrote to memory of 5056	4888	2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	101
PID 2072 wrote to memory of 3916	2072	hnavovid.exe	103
PID 2072 wrote to memory of 3916	2072	hnavovid.exe	103

C:\Users\Admin\AppData\Local\Temp\2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-27_3559ef07616467d0749cfbf9faf22318_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kvzndwrj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1392
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hnavovid.exe" C:\Windows\SysWOW64\kvzndwrj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kvzndwrj binPath= "C:\Windows\SysWOW64\kvzndwrj\hnavovid.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-06-27_3559ef07616467d0749cfbf9faf22318_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:5020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kvzndwrj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kvzndwrj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5320
- 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:5056

C:\Windows\SysWOW64\kvzndwrj\hnavovid.exe
C:\Windows\SysWOW64\kvzndwrj\hnavovid.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-06-27_3559ef07616467d0749cfbf9faf22318_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:2072
- 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:3916

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

Service Stop

T1489

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Downloads

hnavovid.exe

Path C:\Users\Admin\AppData\Local\Temp\hnavovid.exe
Size 12.5MB
SHA256 c3c624fba02abdec70817ca3ba2a747c2c9a6f4e30474e43c5843ee58940d4e1
MD5 3478155761f9419e807d04f964132b53
SHA1 0882850c9926c2ead98f1f1f92dca3ed91b45bba
SHA512 038a139054779d769d9e6d5cde0a30733e408541e37ad6cc8f0edfdb19605316cd1cbdfd33e11c2daf6e99dd76ddeeb7c0e034162674b0128c1cbc4c4f5b58ee
SSDEEP 6144:B+DLnCQj29e/dCOhIctzibHYALvULoA14444444444444444444444444444444z:B+D7fj2816cteYLoA
TLSH
T13ED62A785A962D56C3BF527CFE5CBB011DAC9FA2FA38A0156681EDC00013B951CA63DF
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2072-7-0x0000000000400000-0x0000000000437000-memory.dmp

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memory/2072-11-0x0000000000680000-0x0000000000780000-memory.dmp

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memory/2072-15-0x0000000000400000-0x0000000000437000-memory.dmp

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memory/3916-12-0x00000000007B0000-0x00000000007C5000-memory.dmp

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memory/3916-14-0x00000000007B0000-0x00000000007C5000-memory.dmp

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memory/3916-16-0x00000000007B0000-0x00000000007C5000-memory.dmp

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memory/4888-0-0x0000000000400000-0x0000000000437000-memory.dmp

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memory/4888-2-0x0000000000550000-0x0000000000650000-memory.dmp

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memory/4888-3-0x00000000008C0000-0x00000000008D3000-memory.dmp

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memory/4888-9-0x0000000000400000-0x0000000000437000-memory.dmp

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memory/4888-10-0x00000000008C0000-0x00000000008D3000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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