tofsee | 6442bf4f348a56a3b20351fd4d7280647c3b92ed9aaf4729c6f770ded7e064b5

Analysis

max time kernel
148s
max time network
136s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07/02/2025, 21:39

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General

Target

2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe
Size

11.8MB
MD5

f3a8de9d208f180d270bb8351469a487
SHA1

5bf129cf1c45f7333cecf0b73c504cba71733deb
SHA256

6442bf4f348a56a3b20351fd4d7280647c3b92ed9aaf4729c6f770ded7e064b5
SHA512

2fde428aa8a9c3de49bfe004b59a8ec7f5ce4183bad9472de0bf2969efc5bd76e94b930b867735382f717b31ee3ac78dcbbfa2cac9a300363957646904932d8f
SSDEEP

6144:qLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQN:LTYe+D2jFu+iZoUFhAz

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\bwzdkgnp = "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
2972	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\bwzdkgnp\ImagePath = "C:\\Windows\\SysWOW64\\bwzdkgnp\\nimeufhf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2756	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2732	nimeufhf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2732 set thread context of 2756	2732	nimeufhf.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2948	sc.exe
2844	sc.exe
2836	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	nimeufhf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_f3a8de9d208f180d270bb8351469a487_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2772	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	29
PID 2280 wrote to memory of 2772	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	29
PID 2280 wrote to memory of 2772	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	29
PID 2280 wrote to memory of 2772	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	29
PID 2280 wrote to memory of 2880	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	31
PID 2280 wrote to memory of 2880	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	31
PID 2280 wrote to memory of 2880	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	31
PID 2280 wrote to memory of 2880	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	31
PID 2280 wrote to memory of 2836	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	33
PID 2280 wrote to memory of 2836	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	33
PID 2280 wrote to memory of 2836	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	33
PID 2280 wrote to memory of 2836	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	33
PID 2280 wrote to memory of 2948	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	35
PID 2280 wrote to memory of 2948	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	35
PID 2280 wrote to memory of 2948	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	35
PID 2280 wrote to memory of 2948	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	35
PID 2280 wrote to memory of 2844	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	37
PID 2280 wrote to memory of 2844	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	37
PID 2280 wrote to memory of 2844	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	37
PID 2280 wrote to memory of 2844	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	37
PID 2280 wrote to memory of 2972	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	39
PID 2280 wrote to memory of 2972	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	39
PID 2280 wrote to memory of 2972	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	39
PID 2280 wrote to memory of 2972	2280	2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe	39
PID 2732 wrote to memory of 2756	2732	nimeufhf.exe	42
PID 2732 wrote to memory of 2756	2732	nimeufhf.exe	42
PID 2732 wrote to memory of 2756	2732	nimeufhf.exe	42
PID 2732 wrote to memory of 2756	2732	nimeufhf.exe	42
PID 2732 wrote to memory of 2756	2732	nimeufhf.exe	42
PID 2732 wrote to memory of 2756	2732	nimeufhf.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bwzdkgnp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nimeufhf.exe" C:\Windows\SysWOW64\bwzdkgnp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bwzdkgnp binPath= "C:\Windows\SysWOW64\bwzdkgnp\nimeufhf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bwzdkgnp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bwzdkgnp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- 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:2972

C:\Windows\SysWOW64\bwzdkgnp\nimeufhf.exe
C:\Windows\SysWOW64\bwzdkgnp\nimeufhf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_f3a8de9d208f180d270bb8351469a487_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- 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:2756

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\nimeufhf.exe

Filesize
12.7MB

MD5
1bcc802b58d0820ca0e4c86fb45c075b

SHA1
9b1fa1a7692905f3a7119ddfcfc9ddd058dfdb7f

SHA256
ed95f5d9f03b46c5194228787ebbecf8ddafefb978f96071914417032b88ddb2

SHA512
198c0cd86d6ea64c8c91b3f250e4f3e75b4b782c72254731778f9cf20f28b46bc57b0bae3fdfccf8568a41fb9513fcbc51fa7e0fe9fda40449c07f5eb0602073

Download Submit
memory/2280-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2280-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2280-6-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2280-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2280-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2732-18-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2756-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2756-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-12-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2756-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2756-19-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads