tofsee | ba2d6e98aa3eecb49c8f607224c64c4d6d0af080244f2320d81fdcc926452d2e

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-01-2025 17:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe
Size

11.2MB
MD5

2dfe303a8bce485655bbee496bdda343
SHA1

879b61d37204ee1b2bb55674e2bc2b187c6f57a9
SHA256

ba2d6e98aa3eecb49c8f607224c64c4d6d0af080244f2320d81fdcc926452d2e
SHA512

3c5c0ab522de386301c2275358ee1dda2a7e285e8b19ad32f249f26eb8c5b91ba65a46d12d1ad1dcc0b56eff4f455b8833795a5829ca85a7f5edef912b95a13f
SSDEEP

24576:GpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttl:Koo

Score

10^/10

tofsee discovery evasion 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

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\fxryztvc = "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
2244	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\fxryztvc\ImagePath = "C:\\Windows\\SysWOW64\\fxryztvc\\gtfcvinx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2976	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	gtfcvinx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2976	2828	gtfcvinx.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2784	sc.exe
1952	sc.exe
2796	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.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	gtfcvinx.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 2240 wrote to memory of 2564	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	30
PID 2240 wrote to memory of 2564	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	30
PID 2240 wrote to memory of 2564	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	30
PID 2240 wrote to memory of 2564	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	30
PID 2240 wrote to memory of 2128	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	32
PID 2240 wrote to memory of 2128	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	32
PID 2240 wrote to memory of 2128	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	32
PID 2240 wrote to memory of 2128	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	32
PID 2240 wrote to memory of 2784	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	34
PID 2240 wrote to memory of 2784	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	34
PID 2240 wrote to memory of 2784	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	34
PID 2240 wrote to memory of 2784	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	34
PID 2240 wrote to memory of 1952	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	36
PID 2240 wrote to memory of 1952	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	36
PID 2240 wrote to memory of 1952	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	36
PID 2240 wrote to memory of 1952	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	36
PID 2240 wrote to memory of 2796	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	38
PID 2240 wrote to memory of 2796	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	38
PID 2240 wrote to memory of 2796	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	38
PID 2240 wrote to memory of 2796	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	38
PID 2828 wrote to memory of 2976	2828	gtfcvinx.exe	41
PID 2828 wrote to memory of 2976	2828	gtfcvinx.exe	41
PID 2828 wrote to memory of 2976	2828	gtfcvinx.exe	41
PID 2828 wrote to memory of 2976	2828	gtfcvinx.exe	41
PID 2828 wrote to memory of 2976	2828	gtfcvinx.exe	41
PID 2828 wrote to memory of 2976	2828	gtfcvinx.exe	41
PID 2240 wrote to memory of 2244	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	42
PID 2240 wrote to memory of 2244	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	42
PID 2240 wrote to memory of 2244	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	42
PID 2240 wrote to memory of 2244	2240	2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fxryztvc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gtfcvinx.exe" C:\Windows\SysWOW64\fxryztvc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fxryztvc binPath= "C:\Windows\SysWOW64\fxryztvc\gtfcvinx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fxryztvc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fxryztvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:2244

C:\Windows\SysWOW64\fxryztvc\gtfcvinx.exe
C:\Windows\SysWOW64\fxryztvc\gtfcvinx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-11_2dfe303a8bce485655bbee496bdda343_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:2976

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\gtfcvinx.exe

Filesize
13.9MB

MD5
1d48bed592aa48b1936b37d1e8472b96

SHA1
49187729ba0c7dd9e59a9b33bbd844ab57d1deb8

SHA256
5ef04d7f7a2c355d9f2d4edb3b850937cb7d63c80e9d92fb31c7fd380ef550be

SHA512
64a87b82ab9e3cd1c131ad45c0b311c7de788acb03fc666ed0eaeaea15d56cfc782958f517f18bbadd7c78845b9d5d0f3def24441bedc0052f3ef390460bb986

Download Submit
memory/2240-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2240-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2240-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2240-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2240-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2240-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2828-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2976-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2976-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2976-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2976-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2976-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads