tofsee | faa27c56d471b15784ae7ccde9f7ae0ec110e6258f3f0aa1ca6acb5bd3d89094

Analysis

max time kernel
149s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08/02/2025, 03:12

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General

Target

2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe
Size

12.8MB
MD5

63d1d57985863177aff31922317e6a2d
SHA1

a9e1d61beb6148cfe8f34eb18cbd750a1fcc94f6
SHA256

faa27c56d471b15784ae7ccde9f7ae0ec110e6258f3f0aa1ca6acb5bd3d89094
SHA512

d10c1c6077eed6955cfc404f32cdd7a140e7eeed965f458692e7e3f59f90e565b76b46897f733af2971f2908dcda5d7795593a7b3fac08d53a8e298d0e3de9c2
SSDEEP

49152:dqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPY:dqtYc3v

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\nvzshnme = "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
2148	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\nvzshnme\ImagePath = "C:\\Windows\\SysWOW64\\nvzshnme\\wskkhwvj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2716	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	wskkhwvj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 2716	2876	wskkhwvj.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2980	sc.exe
2316	sc.exe
3004	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_63d1d57985863177aff31922317e6a2d_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wskkhwvj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2144	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	29
PID 2660 wrote to memory of 2144	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	29
PID 2660 wrote to memory of 2144	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	29
PID 2660 wrote to memory of 2144	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	29
PID 2660 wrote to memory of 2816	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	31
PID 2660 wrote to memory of 2816	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	31
PID 2660 wrote to memory of 2816	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	31
PID 2660 wrote to memory of 2816	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	31
PID 2660 wrote to memory of 2980	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	33
PID 2660 wrote to memory of 2980	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	33
PID 2660 wrote to memory of 2980	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	33
PID 2660 wrote to memory of 2980	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	33
PID 2660 wrote to memory of 2316	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	35
PID 2660 wrote to memory of 2316	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	35
PID 2660 wrote to memory of 2316	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	35
PID 2660 wrote to memory of 2316	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	35
PID 2660 wrote to memory of 3004	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	37
PID 2660 wrote to memory of 3004	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	37
PID 2660 wrote to memory of 3004	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	37
PID 2660 wrote to memory of 3004	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	37
PID 2660 wrote to memory of 2148	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	39
PID 2660 wrote to memory of 2148	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	39
PID 2660 wrote to memory of 2148	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	39
PID 2660 wrote to memory of 2148	2660	2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe	39
PID 2876 wrote to memory of 2716	2876	wskkhwvj.exe	42
PID 2876 wrote to memory of 2716	2876	wskkhwvj.exe	42
PID 2876 wrote to memory of 2716	2876	wskkhwvj.exe	42
PID 2876 wrote to memory of 2716	2876	wskkhwvj.exe	42
PID 2876 wrote to memory of 2716	2876	wskkhwvj.exe	42
PID 2876 wrote to memory of 2716	2876	wskkhwvj.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nvzshnme\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wskkhwvj.exe" C:\Windows\SysWOW64\nvzshnme\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nvzshnme binPath= "C:\Windows\SysWOW64\nvzshnme\wskkhwvj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nvzshnme "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nvzshnme
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3004
- 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:2148

C:\Windows\SysWOW64\nvzshnme\wskkhwvj.exe
C:\Windows\SysWOW64\nvzshnme\wskkhwvj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_63d1d57985863177aff31922317e6a2d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- 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:2716

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\wskkhwvj.exe

Filesize
12.8MB

MD5
8bdbca894376b8c9a864ac11879ddb58

SHA1
8edf0912d7a6574770ec52d56d89ced568d5c5ab

SHA256
0fa9658a9944e2a5fd88eb5fa7b9bd44cd065257f3aeaac1e645566f0fecd131

SHA512
974fbcdeaf2219b4fe8fcb4e95e740dbb705c6f8460147fd8f73f073fd387c0d70127a2bc9ed989310ddee9d21e2a1c4b1d319435dd73ce0c1ca364386a6690f

Download Submit
memory/2660-6-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2660-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2660-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2660-7-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2660-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2660-1-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

Filesize
1024KB

Download
memory/2716-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2876-17-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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