tofsee | 0a43c7e574ee0e2926b5f7f880ba70a616dab5cb6c0c693b7f6f1a5ae2127a5a

General

Target

2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe
Size

10.6MB
MD5

5a4fe3f6da01219a35bfe8add5648df4
SHA1

fa8a7940a662ea09e885b0efdc5607c4c1742f94
SHA256

0a43c7e574ee0e2926b5f7f880ba70a616dab5cb6c0c693b7f6f1a5ae2127a5a
SHA512

d46c0e0df186ee643a665ccc0cc461e3bb6eb896923dc4cae22139047e6a2ddcae325301e434251a042be9f108474260a5946fcfbadaaac5b4f5603da6f6228c
SSDEEP

3072:i9x1GKheCvFRd3t4Zi/4fCcw6B0VzBNUlK59KDt7HiF+E9/E9/E9/E9/E9/E9/Eu:gx1GKFNRd32ZRf/aDtKp0e

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
4904	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\ajhlutqu\ImagePath = "C:\\Windows\\SysWOW64\\ajhlutqu\\ctpwnmqu.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-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
5000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5432	ctpwnmqu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5432 set thread context of 5000	5432	ctpwnmqu.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4852	sc.exe
4124	sc.exe
4688	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
4808	5432	WerFault.exe	101
5032	468	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ctpwnmqu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 468 wrote to memory of 6048	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	88
PID 468 wrote to memory of 6048	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	88
PID 468 wrote to memory of 6048	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	88
PID 468 wrote to memory of 4300	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	91
PID 468 wrote to memory of 4300	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	91
PID 468 wrote to memory of 4300	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	91
PID 468 wrote to memory of 4688	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	93
PID 468 wrote to memory of 4688	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	93
PID 468 wrote to memory of 4688	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	93
PID 468 wrote to memory of 4852	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	95
PID 468 wrote to memory of 4852	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	95
PID 468 wrote to memory of 4852	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	95
PID 468 wrote to memory of 4124	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	99
PID 468 wrote to memory of 4124	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	99
PID 468 wrote to memory of 4124	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	99
PID 5432 wrote to memory of 5000	5432	ctpwnmqu.exe	102
PID 5432 wrote to memory of 5000	5432	ctpwnmqu.exe	102
PID 5432 wrote to memory of 5000	5432	ctpwnmqu.exe	102
PID 5432 wrote to memory of 5000	5432	ctpwnmqu.exe	102
PID 5432 wrote to memory of 5000	5432	ctpwnmqu.exe	102
PID 468 wrote to memory of 4904	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	105
PID 468 wrote to memory of 4904	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	105
PID 468 wrote to memory of 4904	468	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ajhlutqu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:6048
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ctpwnmqu.exe" C:\Windows\SysWOW64\ajhlutqu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ajhlutqu binPath= "C:\Windows\SysWOW64\ajhlutqu\ctpwnmqu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ajhlutqu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ajhlutqu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4124
- 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:4904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 468 -s 648
  2⤵
  - Program crash
  PID:5032

C:\Windows\SysWOW64\ajhlutqu\ctpwnmqu.exe
C:\Windows\SysWOW64\ajhlutqu\ctpwnmqu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5432
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5432 -s 512
  2⤵
  - Program crash
  PID:4808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5432 -ip 5432
1⤵
PID:4776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 468 -ip 468
1⤵
PID:4920

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\ctpwnmqu.exe

Filesize
10.2MB

MD5
0809fed1e02cc3845e7d0f43c880e499

SHA1
99f3059e9a01a512cc2143882fd204abf43ab7f5

SHA256
da0bd5054be14d9a7e64af81fbbb15fb062a3351c7a924352234d64b4d2c96b1

SHA512
c482728c975cee8cc9d0edac1b85a5156f82b6d953f8a1870a9046e8c047f170eef413d6fddfb145d164ceb68f3b7c133a5461075cddf48e3a3c35f9fd3b68a8

Download Submit
memory/468-1-0x0000000006DC0000-0x0000000006EC0000-memory.dmp

Filesize
1024KB

Download
memory/468-2-0x0000000008960000-0x0000000008973000-memory.dmp

Filesize
76KB

Download
memory/468-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/468-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/468-12-0x0000000008960000-0x0000000008973000-memory.dmp

Filesize
76KB

Download
memory/468-11-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/5000-8-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/5000-14-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/5000-15-0x00000000007B0000-0x00000000007C5000-memory.dmp

Filesize
84KB

Download
memory/5432-10-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads