tofsee | 6a0320408a9a23bb88c4a46a9e3d09a8a58bb3314679b0b08cea45dbfab9f538

Analysis

max time kernel
150s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
08/08/2026, 17:07

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General

Target
2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
Size 11.2MB
Sample260808-vndj3s1dnc
SHA256 6a0320408a9a23bb88c4a46a9e3d09a8a58bb3314679b0b08cea45dbfab9f538
MD5 e8671105664aa7f1ecd26284106170cc
SHA1 c5a633f5a6bea279861e6f5b84cc6c0da181aa36
SHA512 d2d9025280200802e0dbd3351e18e9b5a49bba8afa6fae172b35d425255f79199afac741fcccdaaaf4b96f432e2295e1732ac38427ee41b5444057a0c0adcd19
SSDEEP 49152:Gi2222222222222222222222222222222222222222222222222222222222222u:
TLSH
T1E9C63B12C623CE2EE4B4933EFB9C77BE68DD8AF142C0154BA935B4E0EC2915D49D560B
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\eqcmjtuc = "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
2868	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\eqcmjtuc\ImagePath = "C:\\Windows\\SysWOW64\\eqcmjtuc\\xqnvmfzw.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
4672	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3980	xqnvmfzw.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 3980 set thread context of 4672	3980	xqnvmfzw.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4148	sc.exe
2524	sc.exe
2256	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
2924	cmd.exe
5976	cmd.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1180	3980	WerFault.exe	100
2904	5980	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	svchost.exe
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	xqnvmfzw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5980 wrote to memory of 2924	5980	2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	89
PID 5980 wrote to memory of 5976	5980	2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	91
PID 5980 wrote to memory of 2256	5980	2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	93
PID 5980 wrote to memory of 4148	5980	2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	95
PID 5980 wrote to memory of 2524	5980	2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	98
PID 3980 wrote to memory of 4672	3980	xqnvmfzw.exe	101
PID 3980 wrote to memory of 4672	3980	xqnvmfzw.exe	101
PID 5980 wrote to memory of 2868	5980	2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	103

C:\Users\Admin\AppData\Local\Temp\2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-08_e8671105664aa7f1ecd26284106170cc_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eqcmjtuc\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xqnvmfzw.exe" C:\Windows\SysWOW64\eqcmjtuc\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:5976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eqcmjtuc binPath= "C:\Windows\SysWOW64\eqcmjtuc\xqnvmfzw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-08-08_e8671105664aa7f1ecd26284106170cc_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:2256
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eqcmjtuc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eqcmjtuc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2524
- 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:2868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5980 -s 1096
  2⤵
  - Program crash
  PID:2904

C:\Windows\SysWOW64\eqcmjtuc\xqnvmfzw.exe
C:\Windows\SysWOW64\eqcmjtuc\xqnvmfzw.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-08-08_e8671105664aa7f1ecd26284106170cc_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:3980
- 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:4672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 572
  2⤵
  - Program crash
  PID:1180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5980 -ip 5980
1⤵
PID:2980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3980 -ip 3980
1⤵
PID:2580

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

xqnvmfzw.exe

Path C:\Users\Admin\AppData\Local\Temp\xqnvmfzw.exe
Size 13.3MB
SHA256 ff505bc473c2d715c99cd51edc0f6ce102d5e92f03ee86d00ac17c4c62fedb21
MD5 21ab8f3f8fe6dfcfa1ed3a48d54ddf60
SHA1 56e4b32f52b1275c487215f964e337da097d602d
SHA512 9ce18877cc685231e925df1107bbc88bd493f46cc0e85d12243e7669bb75feeee7b1aca9106f06ce9850b72d60105d1f0e6d0da02a5736dc4e0c9533ff9192fd
SSDEEP 49152:Pi2222222222222222222222222222222222222222222222222222222222222f:
TLSH
T14FE63B12C623CE2EE4B4933EFB9C77BE68DD8AF142C0154BA935B4E0EC2915D49D560B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3980-8-0x0000000000E50000-0x0000000000E63000-memory.dmp

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memory/3980-7-0x00000000007B0000-0x00000000008B0000-memory.dmp

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memory/3980-13-0x0000000000400000-0x000000000056A000-memory.dmp

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memory/4672-9-0x0000000000760000-0x0000000000775000-memory.dmp

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memory/4672-12-0x0000000000760000-0x0000000000775000-memory.dmp

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memory/4672-15-0x0000000000760000-0x0000000000775000-memory.dmp

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memory/4672-16-0x0000000000760000-0x0000000000775000-memory.dmp

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memory/4672-17-0x0000000000760000-0x0000000000775000-memory.dmp

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memory/5980-1-0x00000000007C0000-0x00000000008C0000-memory.dmp

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memory/5980-2-0x00000000022E0000-0x00000000022F3000-memory.dmp

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memory/5980-14-0x0000000000400000-0x000000000056A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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