tofsee | 78f39346063c30c9acfc8970bad09ecaa63f3efd635b4a5d152efc0499142fa8

General

Target

2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe
Size

11.5MB
MD5

4b33ef6f694d930df29b0f4ab56c6032
SHA1

667b568962798668bbb322b9036f0e414b4f5350
SHA256

78f39346063c30c9acfc8970bad09ecaa63f3efd635b4a5d152efc0499142fa8
SHA512

30b707986fb39038e1209f006f5a9f11459ce9c30b6d3b5b1aa4c6de2d9eca54c2643c6e1a0efdc66e59d60d724f01e3e1004a8cdd27bee6c3070ddb2be731e3
SSDEEP

3072:R/IS72NPLnCwVm85Vuv63c7sVvuFImzMWcdUf87sIHtU18:ySIPuS3c7sSzMZdnQc68

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4780	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\qbdxnvzn\ImagePath = "C:\\Windows\\SysWOW64\\qbdxnvzn\\qcbpaksm.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-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
3740	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4596	qcbpaksm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4596 set thread context of 3740	4596	qcbpaksm.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
764	sc.exe
4452	sc.exe
4672	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
5472	4596	WerFault.exe	99
4740	740	WerFault.exe	85

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qcbpaksm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 4068	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	89
PID 740 wrote to memory of 4068	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	89
PID 740 wrote to memory of 4068	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	89
PID 740 wrote to memory of 1432	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	91
PID 740 wrote to memory of 1432	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	91
PID 740 wrote to memory of 1432	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	91
PID 740 wrote to memory of 764	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	93
PID 740 wrote to memory of 764	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	93
PID 740 wrote to memory of 764	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	93
PID 740 wrote to memory of 4452	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	95
PID 740 wrote to memory of 4452	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	95
PID 740 wrote to memory of 4452	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	95
PID 740 wrote to memory of 4672	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	97
PID 740 wrote to memory of 4672	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	97
PID 740 wrote to memory of 4672	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	97
PID 4596 wrote to memory of 3740	4596	qcbpaksm.exe	102
PID 4596 wrote to memory of 3740	4596	qcbpaksm.exe	102
PID 4596 wrote to memory of 3740	4596	qcbpaksm.exe	102
PID 4596 wrote to memory of 3740	4596	qcbpaksm.exe	102
PID 4596 wrote to memory of 3740	4596	qcbpaksm.exe	102
PID 740 wrote to memory of 4780	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	105
PID 740 wrote to memory of 4780	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	105
PID 740 wrote to memory of 4780	740	2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qbdxnvzn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4068
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qcbpaksm.exe" C:\Windows\SysWOW64\qbdxnvzn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qbdxnvzn binPath= "C:\Windows\SysWOW64\qbdxnvzn\qcbpaksm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qbdxnvzn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qbdxnvzn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4672
- 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:4780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 1188
  2⤵
  - Program crash
  PID:4740

C:\Windows\SysWOW64\qbdxnvzn\qcbpaksm.exe
C:\Windows\SysWOW64\qbdxnvzn\qcbpaksm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_4b33ef6f694d930df29b0f4ab56c6032_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4596
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 512
  2⤵
  - Program crash
  PID:5472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4596 -ip 4596
1⤵
PID:4652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 740 -ip 740
1⤵
PID:4668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\qcbpaksm.exe

Filesize
10.8MB

MD5
e05548ea47a9bbd318f7399837a11a76

SHA1
cc927e3892a4c28fc8c795294050972bc954f2bb

SHA256
34bf141193c2b5e795ae36abdcb239a8daecb57e76d3c60b5aec00d5b395b5ab

SHA512
c2c0cfd8842046e29c419613de9b24fe0226143c03f355c8740920d11714264235325333182e2ec25ade79035034b91b8856bf73159d434d8943fb0849017ccf

Download Submit
memory/740-2-0x0000000006FB0000-0x0000000006FC3000-memory.dmp

Filesize
76KB

Download
memory/740-1-0x0000000006FF0000-0x00000000070F0000-memory.dmp

Filesize
1024KB

Download
memory/740-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/740-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/740-12-0x0000000006FB0000-0x0000000006FC3000-memory.dmp

Filesize
76KB

Download
memory/740-11-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/3740-8-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/3740-14-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/3740-15-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/4596-10-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads