tofsee | 92e052aaa171088403915bf4bb65510956008cbbcc52af5bf7ff88e4a870ef08

Analysis

max time kernel
147s
max time network
123s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
13/02/2025, 23:08

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General

Target

2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe
Size

12.7MB
MD5

21c57bc4f8f7d23ad1ded43862b20cd9
SHA1

95a7848cf77451144d1afe6f92d3f4956be8787b
SHA256

92e052aaa171088403915bf4bb65510956008cbbcc52af5bf7ff88e4a870ef08
SHA512

f37f4ca0a0ce36751ef200c9414f3488f896519a2a2302e594aebf1788b778f224b4b44475b1b025bf12f87d8ff27cf03493f255783d5b438d9bb568461a1057
SSDEEP

393216:6XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXD:S

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\vpybimem = "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
2932	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\vpybimem\ImagePath = "C:\\Windows\\SysWOW64\\vpybimem\\joytnzwy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2828	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2904	joytnzwy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2904 set thread context of 2828	2904	joytnzwy.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2348	sc.exe
1924	sc.exe
1040	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	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	joytnzwy.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 1284 wrote to memory of 1816	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	30
PID 1284 wrote to memory of 1816	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	30
PID 1284 wrote to memory of 1816	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	30
PID 1284 wrote to memory of 1816	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	30
PID 1284 wrote to memory of 2184	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	32
PID 1284 wrote to memory of 2184	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	32
PID 1284 wrote to memory of 2184	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	32
PID 1284 wrote to memory of 2184	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	32
PID 1284 wrote to memory of 2348	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	34
PID 1284 wrote to memory of 2348	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	34
PID 1284 wrote to memory of 2348	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	34
PID 1284 wrote to memory of 2348	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	34
PID 1284 wrote to memory of 1924	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	36
PID 1284 wrote to memory of 1924	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	36
PID 1284 wrote to memory of 1924	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	36
PID 1284 wrote to memory of 1924	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	36
PID 1284 wrote to memory of 1040	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	38
PID 1284 wrote to memory of 1040	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	38
PID 1284 wrote to memory of 1040	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	38
PID 1284 wrote to memory of 1040	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	38
PID 1284 wrote to memory of 2932	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	41
PID 1284 wrote to memory of 2932	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	41
PID 1284 wrote to memory of 2932	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	41
PID 1284 wrote to memory of 2932	1284	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	41
PID 2904 wrote to memory of 2828	2904	joytnzwy.exe	42
PID 2904 wrote to memory of 2828	2904	joytnzwy.exe	42
PID 2904 wrote to memory of 2828	2904	joytnzwy.exe	42
PID 2904 wrote to memory of 2828	2904	joytnzwy.exe	42
PID 2904 wrote to memory of 2828	2904	joytnzwy.exe	42
PID 2904 wrote to memory of 2828	2904	joytnzwy.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vpybimem\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\joytnzwy.exe" C:\Windows\SysWOW64\vpybimem\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vpybimem binPath= "C:\Windows\SysWOW64\vpybimem\joytnzwy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vpybimem "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vpybimem
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1040
- 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:2932

C:\Windows\SysWOW64\vpybimem\joytnzwy.exe
C:\Windows\SysWOW64\vpybimem\joytnzwy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- 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:2828

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\joytnzwy.exe

Filesize
13.6MB

MD5
9f6d6fb0bb1e3e49b86fddc7a2eb25c4

SHA1
b7e3986b8e6dbc3d49e9c4605911b91cff73a3c2

SHA256
6cd6d0638755c9b994455925ce8a6c1f3287482e43ef6140323b2570d6c38fbc

SHA512
9f7885cea3006028e1f8ced651eb798f6ca3a36987a2d352d700caf35858c2d75550b26bf2ba88476153ee02d7b4856a87ac97199dc7feb4c07d88c40d94fe48

Download Submit
memory/1284-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1284-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1284-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1284-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/1284-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1284-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2828-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2828-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2828-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2828-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2904-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads