tofsee | 91c46b2cafc037c13f3cc3f28b09af4abf9db3b1b5793a0d3a89d42b2a44f2ea

General

Target

2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe
Size

12.7MB
MD5

3984de03446668e2855f8a137422130e
SHA1

86477a07c4adb55a4f1cd6bfcdff69af4784c0d7
SHA256

91c46b2cafc037c13f3cc3f28b09af4abf9db3b1b5793a0d3a89d42b2a44f2ea
SHA512

e87d0d6f7fbeef21eeacb75a57407169f70425f0272efc92dd8ca84167372f537414cb7f594cc363ffa224d57d247d1ee0640d6a43ddb442d4e829852a4a0d13
SSDEEP

12288:TQy+PKMBWNKZ8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8L:TQy+Pcy

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
3108	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\cqjzhyhz\ImagePath = "C:\\Windows\\SysWOW64\\cqjzhyhz\\jddufofh.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-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
1564	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3740	jddufofh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3740 set thread context of 1564	3740	jddufofh.exe	114

Launches sc.exe 3 IoCs

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

pid	Process
3264	sc.exe
1528	sc.exe
4488	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
532	3980	WerFault.exe	86
4172	3740	WerFault.exe	108

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_3984de03446668e2855f8a137422130e_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jddufofh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 4212	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	97
PID 3980 wrote to memory of 4212	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	97
PID 3980 wrote to memory of 4212	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	97
PID 3980 wrote to memory of 3272	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	100
PID 3980 wrote to memory of 3272	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	100
PID 3980 wrote to memory of 3272	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	100
PID 3980 wrote to memory of 3264	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	102
PID 3980 wrote to memory of 3264	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	102
PID 3980 wrote to memory of 3264	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	102
PID 3980 wrote to memory of 1528	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	104
PID 3980 wrote to memory of 1528	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	104
PID 3980 wrote to memory of 1528	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	104
PID 3980 wrote to memory of 4488	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	106
PID 3980 wrote to memory of 4488	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	106
PID 3980 wrote to memory of 4488	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	106
PID 3980 wrote to memory of 3108	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	109
PID 3980 wrote to memory of 3108	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	109
PID 3980 wrote to memory of 3108	3980	2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe	109
PID 3740 wrote to memory of 1564	3740	jddufofh.exe	114
PID 3740 wrote to memory of 1564	3740	jddufofh.exe	114
PID 3740 wrote to memory of 1564	3740	jddufofh.exe	114
PID 3740 wrote to memory of 1564	3740	jddufofh.exe	114
PID 3740 wrote to memory of 1564	3740	jddufofh.exe	114

C:\Users\Admin\AppData\Local\Temp\2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cqjzhyhz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4212
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jddufofh.exe" C:\Windows\SysWOW64\cqjzhyhz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3272
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cqjzhyhz binPath= "C:\Windows\SysWOW64\cqjzhyhz\jddufofh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cqjzhyhz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cqjzhyhz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4488
- 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:3108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 1260
  2⤵
  - Program crash
  PID:532

C:\Windows\SysWOW64\cqjzhyhz\jddufofh.exe
C:\Windows\SysWOW64\cqjzhyhz\jddufofh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3740
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 532
  2⤵
  - Program crash
  PID:4172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3980 -ip 3980
1⤵
PID:2416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3740 -ip 3740
1⤵
PID:4864

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

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Downloads

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

Filesize
12.0MB

MD5
22669ffbec4732c8de192132c0114608

SHA1
18b4da261e8c2766777f02e450351ee549b3be0c

SHA256
8ff4b30f8db4ad43b500d501c73caf9b581768f8c101d3fc1d7936165a11fc5b

SHA512
35aef9c9629ade6f033acae5004d92f87ae970ed02126e5096f1ecdf1fa8c669597288564dea7c807faae32aff26e63ec22bf94b9a1117e7cdd99776992c727a

Download Submit
memory/1564-19-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/1564-13-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/1564-15-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/3740-12-0x0000000000400000-0x0000000000862000-memory.dmp

Filesize
4.4MB

Download
memory/3740-17-0x0000000000400000-0x0000000000862000-memory.dmp

Filesize
4.4MB

Download
memory/3740-16-0x0000000000400000-0x0000000000862000-memory.dmp

Filesize
4.4MB

Download
memory/3980-5-0x0000000000400000-0x0000000000862000-memory.dmp

Filesize
4.4MB

Download
memory/3980-8-0x0000000000400000-0x0000000000862000-memory.dmp

Filesize
4.4MB

Download
memory/3980-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3980-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3980-1-0x0000000000BD0000-0x0000000000CD0000-memory.dmp

Filesize
1024KB

Download
memory/3980-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3980-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads