tofsee | 61ae4532d70c8ea72ad9739ade04758e2eb34b9d6333a7879517550bdcc1a26b

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 07:22

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General

Target

786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe
Size

312KB
MD5

62b75bff0859e20c5a8a2ec94ec1ebdc
SHA1

2385c826549d8e526229e081173ec54fb9498be0
SHA256

786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007
SHA512

1f056472c5d90b791af941ba97d252c7f4c7aee1a95128e273be7e4f41445321707a478f64c0e1e209bea6f666662e1a82e315a01c777f0308015d416c18f0e4
SSDEEP

3072:zk0/LshkyJORLxH6dgiOxO2IYDWxT7qwA3OEQf9ltLCWrxpzbgqruJnfed:Q0/LsnORGhrxTqrKeuzbgwuJG

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

patmushta.info

parubey.info

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

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\xknhgplt = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1548	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\xknhgplt\ImagePath = "C:\\Windows\\SysWOW64\\xknhgplt\\mtxwxen.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1348	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2600	mtxwxen.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2600 set thread context of 1348	2600	mtxwxen.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2724	sc.exe
2544	sc.exe
2732	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.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	mtxwxen.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 30 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 2812	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	30
PID 2748 wrote to memory of 2812	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	30
PID 2748 wrote to memory of 2812	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	30
PID 2748 wrote to memory of 2812	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	30
PID 2748 wrote to memory of 2668	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	32
PID 2748 wrote to memory of 2668	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	32
PID 2748 wrote to memory of 2668	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	32
PID 2748 wrote to memory of 2668	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	32
PID 2748 wrote to memory of 2732	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	34
PID 2748 wrote to memory of 2732	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	34
PID 2748 wrote to memory of 2732	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	34
PID 2748 wrote to memory of 2732	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	34
PID 2748 wrote to memory of 2724	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	36
PID 2748 wrote to memory of 2724	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	36
PID 2748 wrote to memory of 2724	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	36
PID 2748 wrote to memory of 2724	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	36
PID 2748 wrote to memory of 2544	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	38
PID 2748 wrote to memory of 2544	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	38
PID 2748 wrote to memory of 2544	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	38
PID 2748 wrote to memory of 2544	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	38
PID 2748 wrote to memory of 1548	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	41
PID 2748 wrote to memory of 1548	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	41
PID 2748 wrote to memory of 1548	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	41
PID 2748 wrote to memory of 1548	2748	786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe	41
PID 2600 wrote to memory of 1348	2600	mtxwxen.exe	43
PID 2600 wrote to memory of 1348	2600	mtxwxen.exe	43
PID 2600 wrote to memory of 1348	2600	mtxwxen.exe	43
PID 2600 wrote to memory of 1348	2600	mtxwxen.exe	43
PID 2600 wrote to memory of 1348	2600	mtxwxen.exe	43
PID 2600 wrote to memory of 1348	2600	mtxwxen.exe	43

C:\Users\Admin\AppData\Local\Temp\786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe
"C:\Users\Admin\AppData\Local\Temp\786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xknhgplt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mtxwxen.exe" C:\Windows\SysWOW64\xknhgplt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xknhgplt binPath= "C:\Windows\SysWOW64\xknhgplt\mtxwxen.exe /d\"C:\Users\Admin\AppData\Local\Temp\786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xknhgplt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xknhgplt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2544
- 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:1548

C:\Windows\SysWOW64\xknhgplt\mtxwxen.exe
C:\Windows\SysWOW64\xknhgplt\mtxwxen.exe /d"C:\Users\Admin\AppData\Local\Temp\786f5910ef3eb2b58bc6795067a0ee8f7a318bc09354e167220c81712087a007.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- 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:1348

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\mtxwxen.exe

Filesize
10.5MB

MD5
ef3f522f302261d0c98d74a3527ca937

SHA1
09ea5154324f26f8eba3ce37ab2984b89a96463f

SHA256
81d617dfbfeb0ac21f5405b63ca63909941244e31adb6696c09bba085f25a789

SHA512
ec22de1a786d86e5c8e80b9c2fb233e94cf6e75fc080ea588767da922b9f9e1ada1f60904d4a1fcabfc6fd54deb06bbfd236329ad143324d28e60f8d6886b3a4

Download Submit
memory/1348-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1348-10-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/1348-16-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/1348-13-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/1348-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2600-15-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2748-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2748-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2748-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2748-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2748-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2748-6-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2748-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads