tofsee | a735b4e6a9c85bb0a0cc09ab86095d8e83ce77f16524a100e9172d382555639d

Analysis

max time kernel
145s
max time network
120s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
30/03/2025, 09:12

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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

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\qwnlsshl = "0"	svchost.exe

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
2980	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\qwnlsshl\ImagePath = "C:\\Windows\\SysWOW64\\qwnlsshl\\sxhcwifh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2944	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2916	sxhcwifh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2916 set thread context of 2944	2916	sxhcwifh.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
744	sc.exe
2564	sc.exe
2500	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

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_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	sxhcwifh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2256	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	30
PID 3048 wrote to memory of 2256	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	30
PID 3048 wrote to memory of 2256	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	30
PID 3048 wrote to memory of 2256	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	30
PID 3048 wrote to memory of 2756	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	32
PID 3048 wrote to memory of 2756	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	32
PID 3048 wrote to memory of 2756	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	32
PID 3048 wrote to memory of 2756	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	32
PID 3048 wrote to memory of 744	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	34
PID 3048 wrote to memory of 744	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	34
PID 3048 wrote to memory of 744	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	34
PID 3048 wrote to memory of 744	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	34
PID 3048 wrote to memory of 2564	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	36
PID 3048 wrote to memory of 2564	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	36
PID 3048 wrote to memory of 2564	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	36
PID 3048 wrote to memory of 2564	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	36
PID 3048 wrote to memory of 2500	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	38
PID 3048 wrote to memory of 2500	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	38
PID 3048 wrote to memory of 2500	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	38
PID 3048 wrote to memory of 2500	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	38
PID 2916 wrote to memory of 2944	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2944	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2944	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2944	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2944	2916	sxhcwifh.exe	41
PID 2916 wrote to memory of 2944	2916	sxhcwifh.exe	41
PID 3048 wrote to memory of 2980	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	42
PID 3048 wrote to memory of 2980	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	42
PID 3048 wrote to memory of 2980	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	42
PID 3048 wrote to memory of 2980	3048	2025-03-30_ed370ba3b6740692720e2217108c74ad_amadey_rhadamanthys_smoke-loader.exe	42

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⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qwnlsshl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sxhcwifh.exe" C:\Windows\SysWOW64\qwnlsshl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qwnlsshl binPath= "C:\Windows\SysWOW64\qwnlsshl\sxhcwifh.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:744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qwnlsshl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qwnlsshl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2500
- 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:2980

C:\Windows\SysWOW64\qwnlsshl\sxhcwifh.exe
C:\Windows\SysWOW64\qwnlsshl\sxhcwifh.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:2916
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2944

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

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

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\sxhcwifh.exe

Filesize
12.3MB

MD5
00a64557ae33ef0adfdd1af4e1e835ef

SHA1
cc02c856f93593f2088dab20ca04818b601fb62c

SHA256
f05db3e830c1cc84764f843887ca49772480aa43878468789b9f9ec21d271160

SHA512
d875a3204cd2d8ca83b75920ef52531cc5a386e08f5ab1442c48fd80fc0bf434e879d5f8a06c73da5bf5f95529517a12ebf9c4ae7f8d5b1ada5e126fcb497c86

Download Submit
memory/2916-12-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2944-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2944-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3048-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/3048-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3048-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3048-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3048-15-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads