tofsee | 7c587ad63305a2ee7c6449fc35b01fda6dc45ad84ee379b55baa7ce71473dc7b

Analysis

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

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
02/07/2026, 16:53

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General

Target
2026-07-02_a76ef331e8f9136783d281c3884b3f8a_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
Size 10.4MB
Sample260702-vd7eeaas2w
SHA256 7c587ad63305a2ee7c6449fc35b01fda6dc45ad84ee379b55baa7ce71473dc7b
MD5 a76ef331e8f9136783d281c3884b3f8a
SHA1 009619d99d28acc20fe7448637bced142b9149f3
SHA512 2a99defcc1b1c5c8cead78065a645ac7c14b655e377c11e7db176a65a66982767a08738d6fa60dc8e9f0b3cdedf2e1c688b8e5535a2151e347eea9c3d7bd07fd
SSDEEP 6144:H+DLnCQj29e/dCOhIctzibHYALvULoA14444444444444444444444444444444r:H+D7fj2816cteYLoA
TLSH
T194B62A785A962D56C3BF527CFE5CBB011DAC9FA2FA38A0156681EDC00013B951CA63DF
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
60	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\cpfvqvlp\ImagePath = "C:\\Windows\\SysWOW64\\cpfvqvlp\\ukqxcosh.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-1-5-21-2937465464-4167303362-2236413517-1000\Control Panel\International\Geo\Nation	2026-07-02_a76ef331e8f9136783d281c3884b3f8a_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
2688	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2332	ukqxcosh.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 2332 set thread context of 2688	2332	ukqxcosh.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4592	sc.exe
1364	sc.exe
1488	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3028	2128	WerFault.exe	84
1316	2332	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	netsh.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	ukqxcosh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-02_a76ef331e8f9136783d281c3884b3f8a_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	sc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 3972	2128	2026-07-02_a76ef331e8f9136783d281c3884b3f8a_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	85
PID 2128 wrote to memory of 3796	2128	2026-07-02_a76ef331e8f9136783d281c3884b3f8a_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	87
PID 2128 wrote to memory of 4592	2128	2026-07-02_a76ef331e8f9136783d281c3884b3f8a_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	89
PID 2128 wrote to memory of 1364	2128	2026-07-02_a76ef331e8f9136783d281c3884b3f8a_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	92
PID 2128 wrote to memory of 1488	2128	2026-07-02_a76ef331e8f9136783d281c3884b3f8a_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	94
PID 2128 wrote to memory of 60	2128	2026-07-02_a76ef331e8f9136783d281c3884b3f8a_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe	97
PID 2332 wrote to memory of 2688	2332	ukqxcosh.exe	102
PID 2332 wrote to memory of 2688	2332	ukqxcosh.exe	102

C:\Users\Admin\AppData\Local\Temp\2026-07-02_a76ef331e8f9136783d281c3884b3f8a_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-02_a76ef331e8f9136783d281c3884b3f8a_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:2128
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cpfvqvlp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3972
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ukqxcosh.exe" C:\Windows\SysWOW64\cpfvqvlp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cpfvqvlp binPath= "C:\Windows\SysWOW64\cpfvqvlp\ukqxcosh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-07-02_a76ef331e8f9136783d281c3884b3f8a_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:4592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cpfvqvlp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1364
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cpfvqvlp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1488
- 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:60
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2128 -s 1232
  2⤵
  - Program crash
  PID:3028

C:\Windows\SysWOW64\cpfvqvlp\ukqxcosh.exe
C:\Windows\SysWOW64\cpfvqvlp\ukqxcosh.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-07-02_a76ef331e8f9136783d281c3884b3f8a_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:2332
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 516
  2⤵
  - Program crash
  PID:1316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2128 -ip 2128
1⤵
PID:4676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2332 -ip 2332
1⤵
PID:2532

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

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

ukqxcosh.exe

Path C:\Users\Admin\AppData\Local\Temp\ukqxcosh.exe
Size 14.9MB
SHA256 0b3f2de3e70ccee330028eecdc043ce371e3d66dc518d85d54ca2ca436a14796
MD5 81cd91eaad36b481c1608fa78b6e3014
SHA1 790c3c05317d0e0bbf4729f3dd13cf14efea58b1
SHA512 1855e07b0100c23e920ca39486bb31cca19d6994832f3d28faa9cf7590c547ecd1593cf1b1bb91da32a1bc2682aee2257e615fc85a2b15d59283b89f345254a4
SSDEEP 6144:f+DLnCQj29e/dCOhIctzibHYALvULoA14444444444444444444444444444444E:f+D7fj2816cteYLoA
TLSH
T19CF62A785A962D56C3BF527CFE5CBB011DAC9FA2FA38A0156681EDC00013B951CA63DF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2128-0-0x0000000000400000-0x0000000000437000-memory.dmp

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memory/2128-2-0x0000000000790000-0x0000000000890000-memory.dmp

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memory/2128-3-0x0000000000590000-0x00000000005A3000-memory.dmp

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memory/2128-11-0x0000000000590000-0x00000000005A3000-memory.dmp

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memory/2128-10-0x0000000000400000-0x0000000000437000-memory.dmp

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memory/2332-7-0x0000000000400000-0x0000000000437000-memory.dmp

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memory/2332-12-0x00000000007F0000-0x00000000008F0000-memory.dmp

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memory/2332-16-0x0000000000400000-0x0000000000437000-memory.dmp

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memory/2688-13-0x0000000000890000-0x00000000008A5000-memory.dmp

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memory/2688-15-0x0000000000890000-0x00000000008A5000-memory.dmp

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memory/2688-17-0x0000000000890000-0x00000000008A5000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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