tofsee | acd14cb5c52a0a884e5c2fb8f58661294cbc487c3d77b533f28e6d69e0cae07d

Analysis

max time kernel
145s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30/03/2025, 09:22

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General

Target

2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe
Size

14.6MB
MD5

5716d783576647769cb631aa50473982
SHA1

bf2e4f602ebcc16926eacbf3c9b9f26bab62d6f4
SHA256

acd14cb5c52a0a884e5c2fb8f58661294cbc487c3d77b533f28e6d69e0cae07d
SHA512

9db45db8595cb4afbd98eb73a3bdd94d50579d93ec6f271b5376525786d21f91079a8d1af1a6a7a7a18a96f9be2bb4c43f37963cc1101eaf533a24c9969a6b0a
SSDEEP

6144:x3PxF2dnDX4THRDbw4f4aiKCxRotUPRLI+HGbt4zl:x3zub4THRDbnf50xutUP5+izl

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\wzprsiup = "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
2692	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\wzprsiup\ImagePath = "C:\\Windows\\SysWOW64\\wzprsiup\\vyeynyjp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2312	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2912	vyeynyjp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 2312	2912	vyeynyjp.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2836	sc.exe
2700	sc.exe
2504	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_5716d783576647769cb631aa50473982_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vyeynyjp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2892	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	30
PID 1740 wrote to memory of 2892	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	30
PID 1740 wrote to memory of 2892	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	30
PID 1740 wrote to memory of 2892	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	30
PID 1740 wrote to memory of 2800	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	32
PID 1740 wrote to memory of 2800	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	32
PID 1740 wrote to memory of 2800	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	32
PID 1740 wrote to memory of 2800	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	32
PID 1740 wrote to memory of 2836	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	34
PID 1740 wrote to memory of 2836	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	34
PID 1740 wrote to memory of 2836	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	34
PID 1740 wrote to memory of 2836	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	34
PID 1740 wrote to memory of 2700	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	36
PID 1740 wrote to memory of 2700	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	36
PID 1740 wrote to memory of 2700	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	36
PID 1740 wrote to memory of 2700	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	36
PID 1740 wrote to memory of 2504	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	38
PID 1740 wrote to memory of 2504	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	38
PID 1740 wrote to memory of 2504	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	38
PID 1740 wrote to memory of 2504	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	38
PID 1740 wrote to memory of 2692	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	41
PID 1740 wrote to memory of 2692	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	41
PID 1740 wrote to memory of 2692	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	41
PID 1740 wrote to memory of 2692	1740	2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe	41
PID 2912 wrote to memory of 2312	2912	vyeynyjp.exe	43
PID 2912 wrote to memory of 2312	2912	vyeynyjp.exe	43
PID 2912 wrote to memory of 2312	2912	vyeynyjp.exe	43
PID 2912 wrote to memory of 2312	2912	vyeynyjp.exe	43
PID 2912 wrote to memory of 2312	2912	vyeynyjp.exe	43
PID 2912 wrote to memory of 2312	2912	vyeynyjp.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wzprsiup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vyeynyjp.exe" C:\Windows\SysWOW64\wzprsiup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wzprsiup binPath= "C:\Windows\SysWOW64\wzprsiup\vyeynyjp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wzprsiup "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wzprsiup
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2504
- 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:2692

C:\Windows\SysWOW64\wzprsiup\vyeynyjp.exe
C:\Windows\SysWOW64\wzprsiup\vyeynyjp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_5716d783576647769cb631aa50473982_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- 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:2312

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\vyeynyjp.exe

Filesize
10.2MB

MD5
713f648af28d92589b77e3e26d304a34

SHA1
c6dcd77d04ce300fc186d8a15119327d7363b4df

SHA256
9e1394172c0e24e3bb3842607386fcf678ebc404c4bfa6635a3f653474832476

SHA512
8d4f51662a8afa990c11afee78dce45e38165e555a164b879994f184bc471644f27aad0fabb61297550ce69640205a25f8f4cfa01bf0156927bc650ec7b61000

Download Submit
memory/1740-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1740-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1740-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1740-8-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1740-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1740-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2312-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2312-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2312-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2312-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2312-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-17-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads