tofsee | b80c11b49dbc53292afd6a4749a61ed5f0ceeadd3f0b6c1f56516bac82a4a3c5

General

Target

2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe
Size

11.6MB
MD5

ceaaf95f3018751179edd1ab5135602d
SHA1

65a3f4a21eb43af3e706261b96b9dd26e266d405
SHA256

b80c11b49dbc53292afd6a4749a61ed5f0ceeadd3f0b6c1f56516bac82a4a3c5
SHA512

46515f511973f910405258fbc15a78ed9fc953737855dd00e44959b6a59500e42d381e376df5864ad985a80bdee75b4b721d3927cc7da6fc2388968d3cfea573
SSDEEP

24576:aEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZr:zfot

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
4452	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\nwfiulvc\ImagePath = "C:\\Windows\\SysWOW64\\nwfiulvc\\zzalghfn.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe

Deletes itself 1 IoCs

pid	Process
3472	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2512	zzalghfn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2512 set thread context of 3472	2512	zzalghfn.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1484	sc.exe
3160	sc.exe
1408	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2552	640	WerFault.exe	82
3384	2512	WerFault.exe	96

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zzalghfn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 3184	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	86
PID 640 wrote to memory of 3184	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	86
PID 640 wrote to memory of 3184	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	86
PID 640 wrote to memory of 4288	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	88
PID 640 wrote to memory of 4288	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	88
PID 640 wrote to memory of 4288	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	88
PID 640 wrote to memory of 1484	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	90
PID 640 wrote to memory of 1484	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	90
PID 640 wrote to memory of 1484	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	90
PID 640 wrote to memory of 3160	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	92
PID 640 wrote to memory of 3160	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	92
PID 640 wrote to memory of 3160	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	92
PID 640 wrote to memory of 1408	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	94
PID 640 wrote to memory of 1408	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	94
PID 640 wrote to memory of 1408	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	94
PID 640 wrote to memory of 4452	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	97
PID 640 wrote to memory of 4452	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	97
PID 640 wrote to memory of 4452	640	2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe	97
PID 2512 wrote to memory of 3472	2512	zzalghfn.exe	102
PID 2512 wrote to memory of 3472	2512	zzalghfn.exe	102
PID 2512 wrote to memory of 3472	2512	zzalghfn.exe	102
PID 2512 wrote to memory of 3472	2512	zzalghfn.exe	102
PID 2512 wrote to memory of 3472	2512	zzalghfn.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nwfiulvc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zzalghfn.exe" C:\Windows\SysWOW64\nwfiulvc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nwfiulvc binPath= "C:\Windows\SysWOW64\nwfiulvc\zzalghfn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nwfiulvc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nwfiulvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1408
- 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:4452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 640 -s 1252
  2⤵
  - Program crash
  PID:2552

C:\Windows\SysWOW64\nwfiulvc\zzalghfn.exe
C:\Windows\SysWOW64\nwfiulvc\zzalghfn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_ceaaf95f3018751179edd1ab5135602d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 532
  2⤵
  - Program crash
  PID:3384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 640 -ip 640
1⤵
PID:1656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2512 -ip 2512
1⤵
PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
14.2MB

MD5
aaffd2a64c8a04e4ae8ee718e7b5338f

SHA1
d1b5260f8fee477fe58e706512ffc729a897b2e0

SHA256
e7d8718b87a480d6c052ed7f96cc051f3094ee0c080f885be8b0d215393379db

SHA512
449fe03d6c0ac7bc0b31c412089858e4e26081533de16774b7d7a228e8a44d4175602fb553458e13b88ec856b15ed231e1a68ff137e00d3f794c03eecccfa9e6

Download Submit
memory/640-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/640-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/640-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/640-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/640-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/640-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/2512-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2512-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2512-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2512-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3472-14-0x0000000000660000-0x0000000000675000-memory.dmp

Filesize
84KB

Download
memory/3472-16-0x0000000000660000-0x0000000000675000-memory.dmp

Filesize
84KB

Download
memory/3472-17-0x0000000000660000-0x0000000000675000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads