tofsee | f05feea6a054d056065071fa7082af87dc344af42a02c8f08edac5af6df11d21

Analysis

max time kernel
146s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
30/03/2025, 09:13

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General

Target

2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe
Size

13.8MB
MD5

1c164e228395b76537d9c5f3cb6d1e17
SHA1

5a3d0f03dd794f846cb8935d3fef26211b568be6
SHA256

f05feea6a054d056065071fa7082af87dc344af42a02c8f08edac5af6df11d21
SHA512

8375c040b4ce4f2a9b8615f35e6abebe5463be78268ab6564928b546412c09fe28a18bbdfade8c401e8510c70035a8e268f04b6e8b7ea3f469663da0d1bd3406
SSDEEP

6144:W8yAzuf/YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYK:Drzufv

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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
1612	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\cplkhlzt\ImagePath = "C:\\Windows\\SysWOW64\\cplkhlzt\\kwvjuemg.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_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
4464	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
208	kwvjuemg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 208 set thread context of 4464	208	kwvjuemg.exe	143

Launches sc.exe 3 IoCs

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

pid	Process
3672	sc.exe
2680	sc.exe
2060	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 21 IoCs

pid	pid_target	Process	procid_target
4256	5424	WerFault.exe	85
5316	5424	WerFault.exe	85
5800	5424	WerFault.exe	85
3784	5424	WerFault.exe	85
1148	5424	WerFault.exe	85
2660	5424	WerFault.exe	85
4364	5424	WerFault.exe	85
4448	5424	WerFault.exe	85
4568	5424	WerFault.exe	85
4656	5424	WerFault.exe	85
5908	5424	WerFault.exe	85
1820	5424	WerFault.exe	85
2596	5424	WerFault.exe	85
3908	5424	WerFault.exe	85
5992	5424	WerFault.exe	85
2152	5424	WerFault.exe	85
3276	5424	WerFault.exe	85
448	208	WerFault.exe	137
3572	5424	WerFault.exe	85
4804	208	WerFault.exe	137
2136	208	WerFault.exe	137

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	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	kwvjuemg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5424 wrote to memory of 4520	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	105
PID 5424 wrote to memory of 4520	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	105
PID 5424 wrote to memory of 4520	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	105
PID 5424 wrote to memory of 4608	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	111
PID 5424 wrote to memory of 4608	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	111
PID 5424 wrote to memory of 4608	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	111
PID 5424 wrote to memory of 3672	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	119
PID 5424 wrote to memory of 3672	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	119
PID 5424 wrote to memory of 3672	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	119
PID 5424 wrote to memory of 2680	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	125
PID 5424 wrote to memory of 2680	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	125
PID 5424 wrote to memory of 2680	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	125
PID 5424 wrote to memory of 2060	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	132
PID 5424 wrote to memory of 2060	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	132
PID 5424 wrote to memory of 2060	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	132
PID 5424 wrote to memory of 1612	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	142
PID 5424 wrote to memory of 1612	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	142
PID 5424 wrote to memory of 1612	5424	2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe	142
PID 208 wrote to memory of 4464	208	kwvjuemg.exe	143
PID 208 wrote to memory of 4464	208	kwvjuemg.exe	143
PID 208 wrote to memory of 4464	208	kwvjuemg.exe	143
PID 208 wrote to memory of 4464	208	kwvjuemg.exe	143
PID 208 wrote to memory of 4464	208	kwvjuemg.exe	143

C:\Users\Admin\AppData\Local\Temp\2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 592
  2⤵
  - Program crash
  PID:4256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 716
  2⤵
  - Program crash
  PID:5316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 808
  2⤵
  - Program crash
  PID:5800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 952
  2⤵
  - Program crash
  PID:3784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 972
  2⤵
  - Program crash
  PID:1148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 984
  2⤵
  - Program crash
  PID:2660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 996
  2⤵
  - Program crash
  PID:4364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cplkhlzt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4520
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 784
  2⤵
  - Program crash
  PID:4448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 576
  2⤵
  - Program crash
  PID:4568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kwvjuemg.exe" C:\Windows\SysWOW64\cplkhlzt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 844
  2⤵
  - Program crash
  PID:4656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 844
  2⤵
  - Program crash
  PID:5908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cplkhlzt binPath= "C:\Windows\SysWOW64\cplkhlzt\kwvjuemg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 1196
  2⤵
  - Program crash
  PID:1820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 1164
  2⤵
  - Program crash
  PID:2596
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cplkhlzt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 656
  2⤵
  - Program crash
  PID:3908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 716
  2⤵
  - Program crash
  PID:5992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cplkhlzt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 644
  2⤵
  - Program crash
  PID:2152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 716
  2⤵
  - Program crash
  PID:3276
- 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:1612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5424 -s 668
  2⤵
  - Program crash
  PID:3572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5424 -ip 5424
1⤵
PID:4884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 5424 -ip 5424
1⤵
PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5424 -ip 5424
1⤵
PID:5636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 5424 -ip 5424
1⤵
PID:1948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5424 -ip 5424
1⤵
PID:1092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5424 -ip 5424
1⤵
PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 5424 -ip 5424
1⤵
PID:4728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5424 -ip 5424
1⤵
PID:4392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 5424 -ip 5424
1⤵
PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5424 -ip 5424
1⤵
PID:4756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5424 -ip 5424
1⤵
PID:3488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5424 -ip 5424
1⤵
PID:2672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 5424 -ip 5424
1⤵
PID:1884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 5424 -ip 5424
1⤵
PID:4032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5424 -ip 5424
1⤵
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 5424 -ip 5424
1⤵
PID:1144

C:\Windows\SysWOW64\cplkhlzt\kwvjuemg.exe
C:\Windows\SysWOW64\cplkhlzt\kwvjuemg.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_1c164e228395b76537d9c5f3cb6d1e17_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 520
  2⤵
  - Program crash
  PID:448
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 528
  2⤵
  - Program crash
  PID:4804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 208 -s 520
  2⤵
  - Program crash
  PID:2136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5424 -ip 5424
1⤵
PID:2948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 208 -ip 208
1⤵
PID:1716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5424 -ip 5424
1⤵
PID:2088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 208 -ip 208
1⤵
PID:1848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 208 -ip 208
1⤵
PID:4020

Network

MITRE ATT&CK Enterprise v15

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

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Downloads

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

Filesize
12.1MB

MD5
d47b5ee49c6c888d0b0de5d3a080a674

SHA1
f0c0ce16a2774d05be086350d2859cc22f88706f

SHA256
ede5998bc9936a2b6d7e909481d98262ada3b0fdc750872421caae288f624958

SHA512
9725bb94f8f36b546294386b768fd96b5c9cbf05dce69f6ce613cd89453dca69f3bff3ac7c51be79a2e1e369a029ae7be090d025278a15003009714d29468a8a

Download Submit
memory/208-8-0x0000000000400000-0x0000000000B7C000-memory.dmp

Filesize
7.5MB

Download
memory/208-18-0x0000000000400000-0x0000000000B7C000-memory.dmp

Filesize
7.5MB

Download
memory/208-9-0x0000000000400000-0x0000000000B7C000-memory.dmp

Filesize
7.5MB

Download
memory/4464-10-0x0000000001210000-0x0000000001225000-memory.dmp

Filesize
84KB

Download
memory/4464-13-0x0000000001210000-0x0000000001225000-memory.dmp

Filesize
84KB

Download
memory/4464-19-0x0000000001210000-0x0000000001225000-memory.dmp

Filesize
84KB

Download
memory/4464-20-0x0000000001210000-0x0000000001225000-memory.dmp

Filesize
84KB

Download
memory/4464-21-0x0000000001210000-0x0000000001225000-memory.dmp

Filesize
84KB

Download
memory/5424-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5424-1-0x0000000000BC0000-0x0000000000CC0000-memory.dmp

Filesize
1024KB

Download
memory/5424-14-0x0000000000400000-0x0000000000B7C000-memory.dmp

Filesize
7.5MB

Download
memory/5424-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5424-15-0x0000000001110000-0x0000000001123000-memory.dmp

Filesize
76KB

Download
memory/5424-2-0x0000000001110000-0x0000000001123000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads