tofsee | 5163d719cbb762221cd05931f443fbe3212137ba8759d8847ba80aa0825a2f19

Analysis

max time kernel
143s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-02-2025 03:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe
Size

11.2MB
MD5

5be256baadf55aee357e68335fd616a2
SHA1

7bff3df1121620064e2fe0ad949c68bfe8d3cf3a
SHA256

5163d719cbb762221cd05931f443fbe3212137ba8759d8847ba80aa0825a2f19
SHA512

4e58a2cb7f1f72c0fa3f67f2a4b11375a70ae3ff84190aa82bdc46dc266b1588ce6d65550677844bf05106e7c72f0968edef4fda68521703ac64627100b8797d
SSDEEP

24576:kEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZU:BfotG

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\diccuocv = "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
2848	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\diccuocv\ImagePath = "C:\\Windows\\SysWOW64\\diccuocv\\lxwkvfnh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2772	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2880	lxwkvfnh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2880 set thread context of 2772	2880	lxwkvfnh.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1684	sc.exe
2132	sc.exe
2856	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lxwkvfnh.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1404	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	30
PID 1720 wrote to memory of 1404	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	30
PID 1720 wrote to memory of 1404	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	30
PID 1720 wrote to memory of 1404	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	30
PID 1720 wrote to memory of 2556	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	32
PID 1720 wrote to memory of 2556	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	32
PID 1720 wrote to memory of 2556	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	32
PID 1720 wrote to memory of 2556	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	32
PID 1720 wrote to memory of 1684	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	34
PID 1720 wrote to memory of 1684	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	34
PID 1720 wrote to memory of 1684	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	34
PID 1720 wrote to memory of 1684	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	34
PID 1720 wrote to memory of 2132	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	36
PID 1720 wrote to memory of 2132	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	36
PID 1720 wrote to memory of 2132	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	36
PID 1720 wrote to memory of 2132	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	36
PID 1720 wrote to memory of 2856	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	38
PID 1720 wrote to memory of 2856	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	38
PID 1720 wrote to memory of 2856	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	38
PID 1720 wrote to memory of 2856	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	38
PID 1720 wrote to memory of 2848	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	41
PID 1720 wrote to memory of 2848	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	41
PID 1720 wrote to memory of 2848	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	41
PID 1720 wrote to memory of 2848	1720	2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe	41
PID 2880 wrote to memory of 2772	2880	lxwkvfnh.exe	43
PID 2880 wrote to memory of 2772	2880	lxwkvfnh.exe	43
PID 2880 wrote to memory of 2772	2880	lxwkvfnh.exe	43
PID 2880 wrote to memory of 2772	2880	lxwkvfnh.exe	43
PID 2880 wrote to memory of 2772	2880	lxwkvfnh.exe	43
PID 2880 wrote to memory of 2772	2880	lxwkvfnh.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\diccuocv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1404
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lxwkvfnh.exe" C:\Windows\SysWOW64\diccuocv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create diccuocv binPath= "C:\Windows\SysWOW64\diccuocv\lxwkvfnh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description diccuocv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2132
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start diccuocv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2856
- 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:2848

C:\Windows\SysWOW64\diccuocv\lxwkvfnh.exe
C:\Windows\SysWOW64\diccuocv\lxwkvfnh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_5be256baadf55aee357e68335fd616a2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880
- 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:2772

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\lxwkvfnh.exe

Filesize
11.0MB

MD5
fe7f1f53b69aafe27507f2a4977bfd37

SHA1
1b8a64b9ec735aefcd6eaf64cf89194e72f975cb

SHA256
335dad7eba30b91743940a3009a1aa34a1fc0456696902f119cc429b1cbacee7

SHA512
3c3c44c1347fdfcb4213765ba500a7f59771c81a4643b5fa5a5a4da9653439bafc529b46f79a703934ee86fe0087061d726a1546f7a807c612d5d0d350ac0ccd

Download Submit
memory/1720-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1720-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1720-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1720-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1720-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1720-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2772-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2880-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads