tofsee | 615e9edf386d8a484622e15125f5c6b668feb7659a981604263b9ccaf6e8e9d8

Analysis

max time kernel
147s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/02/2025, 23:16

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General

Target

2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe
Size

13.0MB
MD5

267b587929ea02da4a1e0cad41f211c5
SHA1

40a97098b95398d173d700ac1865ab3947bb51df
SHA256

615e9edf386d8a484622e15125f5c6b668feb7659a981604263b9ccaf6e8e9d8
SHA512

933b6229e41e73115df7d8963aea219055ea8fbe2903e4e5176a196399be34d7ccea496fd31578a7501ffb44014b28a13e038a7354fd446935928032711f0e8a
SSDEEP

6144:DLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQT:4TYe+D2jFu+iZoUFhAza

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\yodjpceu = "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
2736	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\yodjpceu\ImagePath = "C:\\Windows\\SysWOW64\\yodjpceu\\nscxrdac.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2584	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2588	nscxrdac.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2588 set thread context of 2584	2588	nscxrdac.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2600	sc.exe
2880	sc.exe
2808	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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nscxrdac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 2672	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	30
PID 2892 wrote to memory of 2672	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	30
PID 2892 wrote to memory of 2672	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	30
PID 2892 wrote to memory of 2672	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	30
PID 2892 wrote to memory of 2828	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	32
PID 2892 wrote to memory of 2828	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	32
PID 2892 wrote to memory of 2828	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	32
PID 2892 wrote to memory of 2828	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	32
PID 2892 wrote to memory of 2880	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	34
PID 2892 wrote to memory of 2880	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	34
PID 2892 wrote to memory of 2880	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	34
PID 2892 wrote to memory of 2880	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	34
PID 2892 wrote to memory of 2808	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	36
PID 2892 wrote to memory of 2808	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	36
PID 2892 wrote to memory of 2808	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	36
PID 2892 wrote to memory of 2808	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	36
PID 2892 wrote to memory of 2600	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	38
PID 2892 wrote to memory of 2600	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	38
PID 2892 wrote to memory of 2600	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	38
PID 2892 wrote to memory of 2600	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	38
PID 2892 wrote to memory of 2736	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	41
PID 2892 wrote to memory of 2736	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	41
PID 2892 wrote to memory of 2736	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	41
PID 2892 wrote to memory of 2736	2892	2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe	41
PID 2588 wrote to memory of 2584	2588	nscxrdac.exe	43
PID 2588 wrote to memory of 2584	2588	nscxrdac.exe	43
PID 2588 wrote to memory of 2584	2588	nscxrdac.exe	43
PID 2588 wrote to memory of 2584	2588	nscxrdac.exe	43
PID 2588 wrote to memory of 2584	2588	nscxrdac.exe	43
PID 2588 wrote to memory of 2584	2588	nscxrdac.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yodjpceu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nscxrdac.exe" C:\Windows\SysWOW64\yodjpceu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yodjpceu binPath= "C:\Windows\SysWOW64\yodjpceu\nscxrdac.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yodjpceu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yodjpceu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2600
- 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:2736

C:\Windows\SysWOW64\yodjpceu\nscxrdac.exe
C:\Windows\SysWOW64\yodjpceu\nscxrdac.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-13_267b587929ea02da4a1e0cad41f211c5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2588
- 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:2584

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\nscxrdac.exe

Filesize
14.8MB

MD5
681aef410adbd0bfcacacf3c33615085

SHA1
30d1a1b32694e6bd230c456845e74ff6303b7b3f

SHA256
fc82ac83332d46c2f8669bc6f8a66824584ed79e68819600113d51b14fad456a

SHA512
63d576c5424a1073657bd678b96b076137d85a5958cd3283fbd5b3689559b6044d5eda827ac9a158cc745977e3b4112dc27f4c0bdea2dbb08b1b7d41e1ce8c48

Download Submit
memory/2584-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2584-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2584-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2584-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2584-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2892-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2892-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2892-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2892-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2892-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2892-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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