tofsee | 987b38ac36fba4747933c3baa01a9f1b3012b35f9334093fcc79ec7a07279ff0

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 01:06

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General

Target

2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe
Size

11.1MB
MD5

bdfeca1c373b9383437d4ab439a9b022
SHA1

37798d79b99734005cf1862ce88129bde2d698a4
SHA256

987b38ac36fba4747933c3baa01a9f1b3012b35f9334093fcc79ec7a07279ff0
SHA512

79ac65823fea1447b99e4c1c3ba687bf1988a225d9097532a19c59781a5966475913c20c69ba4305b1909301dc8795ac3afa92a9eb15ff06ca8d995512b3c92a
SSDEEP

196608:IyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:tXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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\jqujrsqf = "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
1412	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\jqujrsqf\ImagePath = "C:\\Windows\\SysWOW64\\jqujrsqf\\yssjuduw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3008	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2560	yssjuduw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2560 set thread context of 3008	2560	yssjuduw.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2924	sc.exe
2680	sc.exe
2812	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	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.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	yssjuduw.exe
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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2744	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	30
PID 2688 wrote to memory of 2744	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	30
PID 2688 wrote to memory of 2744	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	30
PID 2688 wrote to memory of 2744	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	30
PID 2688 wrote to memory of 2780	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	32
PID 2688 wrote to memory of 2780	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	32
PID 2688 wrote to memory of 2780	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	32
PID 2688 wrote to memory of 2780	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	32
PID 2688 wrote to memory of 2924	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	34
PID 2688 wrote to memory of 2924	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	34
PID 2688 wrote to memory of 2924	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	34
PID 2688 wrote to memory of 2924	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	34
PID 2688 wrote to memory of 2680	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	36
PID 2688 wrote to memory of 2680	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	36
PID 2688 wrote to memory of 2680	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	36
PID 2688 wrote to memory of 2680	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	36
PID 2688 wrote to memory of 2812	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	38
PID 2688 wrote to memory of 2812	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	38
PID 2688 wrote to memory of 2812	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	38
PID 2688 wrote to memory of 2812	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	38
PID 2560 wrote to memory of 3008	2560	yssjuduw.exe	41
PID 2560 wrote to memory of 3008	2560	yssjuduw.exe	41
PID 2560 wrote to memory of 3008	2560	yssjuduw.exe	41
PID 2560 wrote to memory of 3008	2560	yssjuduw.exe	41
PID 2560 wrote to memory of 3008	2560	yssjuduw.exe	41
PID 2560 wrote to memory of 3008	2560	yssjuduw.exe	41
PID 2688 wrote to memory of 1412	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	42
PID 2688 wrote to memory of 1412	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	42
PID 2688 wrote to memory of 1412	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	42
PID 2688 wrote to memory of 1412	2688	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jqujrsqf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yssjuduw.exe" C:\Windows\SysWOW64\jqujrsqf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jqujrsqf binPath= "C:\Windows\SysWOW64\jqujrsqf\yssjuduw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jqujrsqf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jqujrsqf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:1412

C:\Windows\SysWOW64\jqujrsqf\yssjuduw.exe
C:\Windows\SysWOW64\jqujrsqf\yssjuduw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2560
- 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:3008

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\yssjuduw.exe

Filesize
11.5MB

MD5
d2223bb43c59bab6f64df04924340729

SHA1
55e18cfcda23ba1f5e074a2075b5395b9df79ce0

SHA256
fc2e90bc1f925c00c5736fe3c5c0f672e51627e7fdfe82528dfb1eab9dfda56a

SHA512
3a9c5e5d6a823f964c0931dd5738988b0437da0517d058d5e48bfaf752c524eef5597d43bb1fee30902de9c8f12445840e8bd590ba9ba23b278cb87f5c91d99d

Download Submit
memory/2560-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2688-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/2688-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2688-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3008-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3008-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3008-8-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3008-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3008-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads