tofsee | d3e803eeb70ddbfc8156b770fd62b409c6f0041e04eb7a6bd83ada319ac1a03c

General

Target

2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe
Size

10.7MB
MD5

25f6954599436d8d8a90d50e0c3f0641
SHA1

e592d127dc719a07390093839714c6049267956d
SHA256

d3e803eeb70ddbfc8156b770fd62b409c6f0041e04eb7a6bd83ada319ac1a03c
SHA512

661df871289cbc313baf82ee32e38a8a5ce57b43682b2e21cffcb33f9b40b21fdf1d43554bc514dde04beb6a08dc3fb4b032d81dd8b59309c302384fc0487af5
SSDEEP

6144:V2MDRs+9skCSisUPOdxJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJx:V2y6eCSio

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
5932	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\uwfnysxn\ImagePath = "C:\\Windows\\SysWOW64\\uwfnysxn\\zmyvobgq.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-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
3692	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3160	zmyvobgq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3160 set thread context of 3692	3160	zmyvobgq.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
4464	sc.exe
4760	sc.exe
2528	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
856	3160	WerFault.exe	105
6068	2872	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	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.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	zmyvobgq.exe
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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 216	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	90
PID 2872 wrote to memory of 216	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	90
PID 2872 wrote to memory of 216	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	90
PID 2872 wrote to memory of 6080	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	94
PID 2872 wrote to memory of 6080	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	94
PID 2872 wrote to memory of 6080	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	94
PID 2872 wrote to memory of 4464	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	96
PID 2872 wrote to memory of 4464	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	96
PID 2872 wrote to memory of 4464	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	96
PID 2872 wrote to memory of 4760	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	99
PID 2872 wrote to memory of 4760	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	99
PID 2872 wrote to memory of 4760	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	99
PID 2872 wrote to memory of 2528	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	103
PID 2872 wrote to memory of 2528	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	103
PID 2872 wrote to memory of 2528	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	103
PID 3160 wrote to memory of 3692	3160	zmyvobgq.exe	106
PID 3160 wrote to memory of 3692	3160	zmyvobgq.exe	106
PID 3160 wrote to memory of 3692	3160	zmyvobgq.exe	106
PID 3160 wrote to memory of 3692	3160	zmyvobgq.exe	106
PID 3160 wrote to memory of 3692	3160	zmyvobgq.exe	106
PID 2872 wrote to memory of 5932	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	109
PID 2872 wrote to memory of 5932	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	109
PID 2872 wrote to memory of 5932	2872	2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe	109

C:\Users\Admin\AppData\Local\Temp\2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uwfnysxn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zmyvobgq.exe" C:\Windows\SysWOW64\uwfnysxn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:6080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uwfnysxn binPath= "C:\Windows\SysWOW64\uwfnysxn\zmyvobgq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4464
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uwfnysxn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uwfnysxn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2528
- 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:5932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 652
  2⤵
  - Program crash
  PID:6068

C:\Windows\SysWOW64\uwfnysxn\zmyvobgq.exe
C:\Windows\SysWOW64\uwfnysxn\zmyvobgq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_25f6954599436d8d8a90d50e0c3f0641_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3160
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 440
  2⤵
  - Program crash
  PID:856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3160 -ip 3160
1⤵
PID:2428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2872 -ip 2872
1⤵
PID:620

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\zmyvobgq.exe

Filesize
12.2MB

MD5
5f8a48a6e253a52d4571411f75e71dfb

SHA1
78dff4bab04d86e7bb8acd19951a58036af00acc

SHA256
004dc9d56ae26597c7769afce19acf55f332514879c260f716aefd5357cfda88

SHA512
a4da1b56458cb5c0ddf226ecc6577c8d57a683e2be270f877541952dc4a7c3eff435cd6826e5c1e751c9d83bfc08e67a4f4a57f7fef7314461a302494cbbb7ad

Download Submit
memory/2872-1-0x0000000006E40000-0x0000000006F40000-memory.dmp

Filesize
1024KB

Download
memory/2872-2-0x0000000006DB0000-0x0000000006DC3000-memory.dmp

Filesize
76KB

Download
memory/2872-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-11-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2872-12-0x0000000006DB0000-0x0000000006DC3000-memory.dmp

Filesize
76KB

Download
memory/3160-10-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/3692-8-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download
memory/3692-14-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download
memory/3692-15-0x0000000000610000-0x0000000000625000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads