tofsee | 0a43c7e574ee0e2926b5f7f880ba70a616dab5cb6c0c693b7f6f1a5ae2127a5a

Analysis

max time kernel
144s
max time network
118s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
30/03/2025, 09:23

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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

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\yzeczuvp = "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
2672	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\yzeczuvp\ImagePath = "C:\\Windows\\SysWOW64\\yzeczuvp\\faewmxzx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2980	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	faewmxzx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2776 set thread context of 2980	2776	faewmxzx.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2984	sc.exe
2792	sc.exe
2248	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	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	sc.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	faewmxzx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 2012	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	30
PID 1644 wrote to memory of 2012	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	30
PID 1644 wrote to memory of 2012	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	30
PID 1644 wrote to memory of 2012	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	30
PID 1644 wrote to memory of 1612	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	32
PID 1644 wrote to memory of 1612	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	32
PID 1644 wrote to memory of 1612	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	32
PID 1644 wrote to memory of 1612	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	32
PID 1644 wrote to memory of 2248	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	34
PID 1644 wrote to memory of 2248	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	34
PID 1644 wrote to memory of 2248	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	34
PID 1644 wrote to memory of 2248	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	34
PID 1644 wrote to memory of 2984	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	36
PID 1644 wrote to memory of 2984	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	36
PID 1644 wrote to memory of 2984	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	36
PID 1644 wrote to memory of 2984	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	36
PID 1644 wrote to memory of 2792	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	38
PID 1644 wrote to memory of 2792	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	38
PID 1644 wrote to memory of 2792	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	38
PID 1644 wrote to memory of 2792	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	38
PID 2776 wrote to memory of 2980	2776	faewmxzx.exe	41
PID 2776 wrote to memory of 2980	2776	faewmxzx.exe	41
PID 2776 wrote to memory of 2980	2776	faewmxzx.exe	41
PID 2776 wrote to memory of 2980	2776	faewmxzx.exe	41
PID 2776 wrote to memory of 2980	2776	faewmxzx.exe	41
PID 2776 wrote to memory of 2980	2776	faewmxzx.exe	41
PID 1644 wrote to memory of 2672	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	42
PID 1644 wrote to memory of 2672	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	42
PID 1644 wrote to memory of 2672	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	42
PID 1644 wrote to memory of 2672	1644	2025-03-30_5a4fe3f6da01219a35bfe8add5648df4_amadey_rhadamanthys_smoke-loader.exe	42

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⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yzeczuvp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\faewmxzx.exe" C:\Windows\SysWOW64\yzeczuvp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yzeczuvp binPath= "C:\Windows\SysWOW64\yzeczuvp\faewmxzx.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:2248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yzeczuvp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yzeczuvp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2792
- 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:2672

C:\Windows\SysWOW64\yzeczuvp\faewmxzx.exe
C:\Windows\SysWOW64\yzeczuvp\faewmxzx.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:2776
- 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:2980

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\faewmxzx.exe

Filesize
14.0MB

MD5
b33fcb6d8d7fca7be05df09627d791b6

SHA1
588d13f1c246c557461f8848fe5b5412b02e271d

SHA256
d73f7a44ab6541c08c5c4eba4b7278eaca7a491fb89d7b31426a95f0b7a74d6a

SHA512
fb8f0d712eb650280e7d6b40c06f91357065396e0d381a11bdfe89a8a97f5d26f14c563c6326a8b4ebf9ea44a455231bb1d34f82fea9bcab2d640b93ab35ce78

Download Submit
memory/1644-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1644-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1644-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1644-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1644-1-0x0000000006D00000-0x0000000006E00000-memory.dmp

Filesize
1024KB

Download
memory/1644-14-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2776-12-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2980-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2980-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads