tofsee | ddff17d8b9a979139a8fc51673bd6cdf13d41a6212412410a361170525144de3

General

Target

2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe
Size

11.6MB
MD5

f042f43e6fbf7b7fdc1d39b013541d43
SHA1

d73b396426e9a66f9a8528eee49462aedb97c8cf
SHA256

ddff17d8b9a979139a8fc51673bd6cdf13d41a6212412410a361170525144de3
SHA512

19c92a2015b1e63fe90840106453a12219e921a168c3a2d9338a15c9a24bc90eaeaef056c5274427ca788aa2475f837d4dde34f1fada02890e6d19b9b2038561
SSDEEP

24576:mEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZn:ffot

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
4996	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\fonlngzd\ImagePath = "C:\\Windows\\SysWOW64\\fonlngzd\\dfagzmw.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-1-5-21-805940606-1861219160-370298170-1000\Control Panel\International\Geo\Nation	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe

Deletes itself 1 IoCs

pid	Process
768	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2176	dfagzmw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2176 set thread context of 768	2176	dfagzmw.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
1200	sc.exe
2688	sc.exe
2632	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
2064	4852	WerFault.exe	84
4240	2176	WerFault.exe	98

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	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_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	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	dfagzmw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4852 wrote to memory of 2608	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	88
PID 4852 wrote to memory of 2608	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	88
PID 4852 wrote to memory of 2608	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	88
PID 4852 wrote to memory of 3332	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	90
PID 4852 wrote to memory of 3332	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	90
PID 4852 wrote to memory of 3332	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	90
PID 4852 wrote to memory of 1200	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	92
PID 4852 wrote to memory of 1200	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	92
PID 4852 wrote to memory of 1200	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	92
PID 4852 wrote to memory of 2688	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	94
PID 4852 wrote to memory of 2688	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	94
PID 4852 wrote to memory of 2688	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	94
PID 4852 wrote to memory of 2632	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	96
PID 4852 wrote to memory of 2632	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	96
PID 4852 wrote to memory of 2632	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	96
PID 4852 wrote to memory of 4996	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	99
PID 4852 wrote to memory of 4996	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	99
PID 4852 wrote to memory of 4996	4852	2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe	99
PID 2176 wrote to memory of 768	2176	dfagzmw.exe	104
PID 2176 wrote to memory of 768	2176	dfagzmw.exe	104
PID 2176 wrote to memory of 768	2176	dfagzmw.exe	104
PID 2176 wrote to memory of 768	2176	dfagzmw.exe	104
PID 2176 wrote to memory of 768	2176	dfagzmw.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4852
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fonlngzd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2608
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dfagzmw.exe" C:\Windows\SysWOW64\fonlngzd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fonlngzd binPath= "C:\Windows\SysWOW64\fonlngzd\dfagzmw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fonlngzd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fonlngzd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2632
- 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:4996
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4852 -s 1048
  2⤵
  - Program crash
  PID:2064

C:\Windows\SysWOW64\fonlngzd\dfagzmw.exe
C:\Windows\SysWOW64\fonlngzd\dfagzmw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_f042f43e6fbf7b7fdc1d39b013541d43_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2176 -s 512
  2⤵
  - Program crash
  PID:4240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4852 -ip 4852
1⤵
PID:3944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2176 -ip 2176
1⤵
PID:4476

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\dfagzmw.exe

Filesize
12.9MB

MD5
ee3f05bf53a0c400433fc8cfcfee1bed

SHA1
b1d75b494b3d247d19e6bbd6a756a60836a558f4

SHA256
f53031c979d932096dd0a831188a651a10fe267b03af2f2ce305aa701e7512a5

SHA512
7a0ce253aab9e8b4e5a2892abc779709c477a5f3d8f4954d2ed570714906e1ebd84b7f42b4260c81fd8c18620847e9da9199a1ce01da76bb67adb15f2c8bb3d5

Download Submit
memory/768-14-0x00000000005D0000-0x00000000005E5000-memory.dmp

Filesize
84KB

Download
memory/768-17-0x00000000005D0000-0x00000000005E5000-memory.dmp

Filesize
84KB

Download
memory/768-16-0x00000000005D0000-0x00000000005E5000-memory.dmp

Filesize
84KB

Download
memory/2176-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2176-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2176-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2176-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4852-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4852-8-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/4852-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/4852-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4852-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4852-2-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads