tofsee | c1ce4609dc824dd6dd5e15f5fe8c69532109c45f9d2c5ed0d45d3f7969c99a52

Analysis

max time kernel
148s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
08/08/2026, 17:17

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General

Target
2026-08-08_c3354516d8d5262e9371d180e545b685_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
Size 13.8MB
Sample260808-vtvesaap4t
SHA256 c1ce4609dc824dd6dd5e15f5fe8c69532109c45f9d2c5ed0d45d3f7969c99a52
MD5 c3354516d8d5262e9371d180e545b685
SHA1 c00cae78cf04564af115b461f3961919e6629c63
SHA512 ad534d99945971e92d8982dc9255ed596c24823d416d163abc6f8f738ace01c29ef7f17754b0148ae980fb012b9a604bb0bbca11aeca8dcb85da04738c1b6f0f
SSDEEP 49152:Xi2222222222222222222222222222222222222222222222222222222222222m:
TLSH
T104E63B12C623CE2EE4B4933EFB9C77BE68DD8AF142C0154BA935B4E0EC2915D49D560B
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\cdmmbxxx = "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
2376	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\cdmmbxxx\ImagePath = "C:\\Windows\\SysWOW64\\cdmmbxxx\\amvjiens.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
1980	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5676	amvjiens.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 5676 set thread context of 1980	5676	amvjiens.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1268	sc.exe
2512	sc.exe
1860	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
2496	cmd.exe
4644	cmd.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
264	5676	WerFault.exe	100
784	3564	WerFault.exe	88

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	2026-08-08_c3354516d8d5262e9371d180e545b685_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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	amvjiens.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 2496	3564	2026-08-08_c3354516d8d5262e9371d180e545b685_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	89
PID 3564 wrote to memory of 4644	3564	2026-08-08_c3354516d8d5262e9371d180e545b685_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	91
PID 3564 wrote to memory of 1268	3564	2026-08-08_c3354516d8d5262e9371d180e545b685_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	93
PID 3564 wrote to memory of 2512	3564	2026-08-08_c3354516d8d5262e9371d180e545b685_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	95
PID 3564 wrote to memory of 1860	3564	2026-08-08_c3354516d8d5262e9371d180e545b685_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	98
PID 5676 wrote to memory of 1980	5676	amvjiens.exe	101
PID 5676 wrote to memory of 1980	5676	amvjiens.exe	101
PID 3564 wrote to memory of 2376	3564	2026-08-08_c3354516d8d5262e9371d180e545b685_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	104

C:\Users\Admin\AppData\Local\Temp\2026-08-08_c3354516d8d5262e9371d180e545b685_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-08_c3354516d8d5262e9371d180e545b685_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cdmmbxxx\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\amvjiens.exe" C:\Windows\SysWOW64\cdmmbxxx\
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4644
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cdmmbxxx binPath= "C:\Windows\SysWOW64\cdmmbxxx\amvjiens.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-08-08_c3354516d8d5262e9371d180e545b685_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:1268
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cdmmbxxx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2512
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cdmmbxxx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1860
- 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:2376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 1096
  2⤵
  - Program crash
  PID:784

C:\Windows\SysWOW64\cdmmbxxx\amvjiens.exe
C:\Windows\SysWOW64\cdmmbxxx\amvjiens.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-08-08_c3354516d8d5262e9371d180e545b685_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:5676
- 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:1980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5676 -s 592
  2⤵
  - Program crash
  PID:264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 5676 -ip 5676
1⤵
PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 3564 -ip 3564
1⤵
PID:1144

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

amvjiens.exe

Path C:\Users\Admin\AppData\Local\Temp\amvjiens.exe
Size 10.7MB
SHA256 00ddcc31713b1992700dd9c2342eba36fbe73c06de1d9a767ea25e211353225b
MD5 c2b8d10ab26ca056c8b396ad0d9608c8
SHA1 08803037ca47ea642c9e7f37189d2563f64a0ba9
SHA512 cf6ccc646c5048d0cb0ed9078fc23925f64b3f2690a88ad7175cba4024b4731e4dcc057aed63c98f759de30c9f345db79ed52e40cd2e62b8e0deca4e6f9db225
SSDEEP 49152:di2222222222222222222222222222222222222222222222222222222222222X:
TLSH
T14CB63B12C623CE2EE4B4933EFB9C77BE68DD8AF142C0154BA935B4E0EC2915D49D560B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1980-9-0x0000000000590000-0x00000000005A5000-memory.dmp

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memory/1980-12-0x0000000000590000-0x00000000005A5000-memory.dmp

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memory/1980-15-0x0000000000590000-0x00000000005A5000-memory.dmp

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memory/1980-16-0x0000000000590000-0x00000000005A5000-memory.dmp

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memory/1980-17-0x0000000000590000-0x00000000005A5000-memory.dmp

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memory/3564-1-0x0000000000930000-0x0000000000A30000-memory.dmp

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memory/3564-2-0x00000000022D0000-0x00000000022E3000-memory.dmp

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memory/3564-14-0x0000000000400000-0x000000000056A000-memory.dmp

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memory/5676-8-0x0000000000830000-0x0000000000843000-memory.dmp

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memory/5676-7-0x00000000008B0000-0x00000000009B0000-memory.dmp

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memory/5676-13-0x0000000000400000-0x000000000056A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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