tofsee | a735b4e6a9c85bb0a0cc09ab86095d8e83ce77f16524a100e9172d382555639d

General

Target

2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe
Size

11.6MB
MD5

ed370ba3b6740692720e2217108c74ad
SHA1

14c98933459b499033cecec22e7f83f327e2fb3b
SHA256

a735b4e6a9c85bb0a0cc09ab86095d8e83ce77f16524a100e9172d382555639d
SHA512

7ea28e8a41a11362776618b4202cc2cb0eacab032d297607bf259a3ed65b8933f79f4fc72af5cbae1d5867a9040cb5b51335fd40a82998d11640686ff8561c79
SSDEEP

24576:95iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiis:9N

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\jxmydcre\ImagePath = "C:\\Windows\\SysWOW64\\jxmydcre\\vxqbiqeu.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-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
4704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4620	vxqbiqeu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4620 set thread context of 4704	4620	vxqbiqeu.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4388	sc.exe
4644	sc.exe
4992	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
4832	4620	WerFault.exe	98
4776	4696	WerFault.exe	84

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vxqbiqeu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-30_ed370ba3b6740692720e2217108c74ad_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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 5748	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	88
PID 4696 wrote to memory of 5748	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	88
PID 4696 wrote to memory of 5748	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	88
PID 4696 wrote to memory of 1448	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	90
PID 4696 wrote to memory of 1448	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	90
PID 4696 wrote to memory of 1448	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	90
PID 4696 wrote to memory of 4992	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	92
PID 4696 wrote to memory of 4992	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	92
PID 4696 wrote to memory of 4992	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	92
PID 4696 wrote to memory of 4388	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	94
PID 4696 wrote to memory of 4388	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	94
PID 4696 wrote to memory of 4388	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	94
PID 4696 wrote to memory of 4644	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	96
PID 4696 wrote to memory of 4644	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	96
PID 4696 wrote to memory of 4644	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	96
PID 4620 wrote to memory of 4704	4620	vxqbiqeu.exe	101
PID 4620 wrote to memory of 4704	4620	vxqbiqeu.exe	101
PID 4620 wrote to memory of 4704	4620	vxqbiqeu.exe	101
PID 4620 wrote to memory of 4704	4620	vxqbiqeu.exe	101
PID 4620 wrote to memory of 4704	4620	vxqbiqeu.exe	101
PID 4696 wrote to memory of 4904	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	105
PID 4696 wrote to memory of 4904	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	105
PID 4696 wrote to memory of 4904	4696	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jxmydcre\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vxqbiqeu.exe" C:\Windows\SysWOW64\jxmydcre\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jxmydcre binPath= "C:\Windows\SysWOW64\jxmydcre\vxqbiqeu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jxmydcre "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jxmydcre
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4644
- 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 4696 -s 1044
  2⤵
  - Program crash
  PID:4776

C:\Windows\SysWOW64\jxmydcre\vxqbiqeu.exe
C:\Windows\SysWOW64\jxmydcre\vxqbiqeu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4620 -s 512
  2⤵
  - Program crash
  PID:4832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4620 -ip 4620
1⤵
PID:5812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4696 -ip 4696
1⤵
PID:4932

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\vxqbiqeu.exe

Filesize
14.8MB

MD5
fcce28282fe085cf5fa375b4cd3f207d

SHA1
8d1603c55e2a65090db398239b9b52cb00866086

SHA256
fee5eec11cddb80b10661b44f293ee602821b80e8fda5ff15a07f87289df3af1

SHA512
322ea574d8412c5202082a765f6c220d2294ab91eee5bad59550b675bdfe5b45fe1361c01cd3857aed322f09e578f6ef13c18aa0db46efed266449aa6c5ef659

Download Submit
memory/4620-15-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4620-8-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4620-9-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4620-10-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4696-17-0x00000000006A0000-0x00000000006B3000-memory.dmp

Filesize
76KB

Download
memory/4696-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4696-2-0x00000000006A0000-0x00000000006B3000-memory.dmp

Filesize
76KB

Download
memory/4696-16-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4696-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4696-1-0x00000000006F0000-0x00000000007F0000-memory.dmp

Filesize
1024KB

Download
memory/4704-11-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/4704-14-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/4704-19-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/4704-20-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/4704-21-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads