tofsee | eae749dc9f2c8db978c02519580c11f054a9488ca1e0670264426456d39c2f0c

General

Target

2025-01-30_698be4176839635901979195d952680b_mafia.exe
Size

11.1MB
MD5

698be4176839635901979195d952680b
SHA1

bf18881e6d848bfb4a69c650d543c2f4fc6eb6c7
SHA256

eae749dc9f2c8db978c02519580c11f054a9488ca1e0670264426456d39c2f0c
SHA512

a3aa5959e5aad9b9ace273bf6ecc048133ab02cc24b3d2f5db64ffa5f7dbe2f50a4bb5fdc5d8b271623cd33a219d831feb1faa15cb7bbee4471f32767c43e2ac
SSDEEP

24576:UEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZl:xfot

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
3612	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\rumhtowe\ImagePath = "C:\\Windows\\SysWOW64\\rumhtowe\\frqepzhb.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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	2025-01-30_698be4176839635901979195d952680b_mafia.exe

Deletes itself 1 IoCs

pid	Process
2884	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1444	frqepzhb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1444 set thread context of 2884	1444	frqepzhb.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3296	sc.exe
5012	sc.exe
2472	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
2268	1776	WerFault.exe	82
1988	1444	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	frqepzhb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_698be4176839635901979195d952680b_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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 980	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	86
PID 1776 wrote to memory of 980	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	86
PID 1776 wrote to memory of 980	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	86
PID 1776 wrote to memory of 964	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	88
PID 1776 wrote to memory of 964	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	88
PID 1776 wrote to memory of 964	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	88
PID 1776 wrote to memory of 3296	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	90
PID 1776 wrote to memory of 3296	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	90
PID 1776 wrote to memory of 3296	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	90
PID 1776 wrote to memory of 5012	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	92
PID 1776 wrote to memory of 5012	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	92
PID 1776 wrote to memory of 5012	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	92
PID 1776 wrote to memory of 2472	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	94
PID 1776 wrote to memory of 2472	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	94
PID 1776 wrote to memory of 2472	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	94
PID 1776 wrote to memory of 3612	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	97
PID 1776 wrote to memory of 3612	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	97
PID 1776 wrote to memory of 3612	1776	2025-01-30_698be4176839635901979195d952680b_mafia.exe	97
PID 1444 wrote to memory of 2884	1444	frqepzhb.exe	102
PID 1444 wrote to memory of 2884	1444	frqepzhb.exe	102
PID 1444 wrote to memory of 2884	1444	frqepzhb.exe	102
PID 1444 wrote to memory of 2884	1444	frqepzhb.exe	102
PID 1444 wrote to memory of 2884	1444	frqepzhb.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-30_698be4176839635901979195d952680b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_698be4176839635901979195d952680b_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rumhtowe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\frqepzhb.exe" C:\Windows\SysWOW64\rumhtowe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rumhtowe binPath= "C:\Windows\SysWOW64\rumhtowe\frqepzhb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_698be4176839635901979195d952680b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3296
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rumhtowe "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rumhtowe
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2472
- 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:3612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1776 -s 1040
  2⤵
  - Program crash
  PID:2268

C:\Windows\SysWOW64\rumhtowe\frqepzhb.exe
C:\Windows\SysWOW64\rumhtowe\frqepzhb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_698be4176839635901979195d952680b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1444
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1444 -s 512
  2⤵
  - Program crash
  PID:1988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1776 -ip 1776
1⤵
PID:1608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1444 -ip 1444
1⤵
PID:2264

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\frqepzhb.exe

Filesize
14.1MB

MD5
2bb6dc52c863a64b825cb6d87e0d4107

SHA1
9b89eac7700a0cf3ae0353f3a619987f87864371

SHA256
b5be7ee4e60a358e28c42016df8b46ce0ac06e24ad10a8a05be7f946d8bdd42e

SHA512
640a1ae0453bf9121515d1337528958b21d6039b65f40917eb878c95571b7df3abeaf70d01190dfd2bfb7240b72fe588cc89b7c29031400a8084f9cb36fe3c7a

Download Submit
memory/1444-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1444-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1444-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1444-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1776-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1776-2-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/1776-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1776-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1776-8-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/1776-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/2884-14-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/2884-16-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download
memory/2884-17-0x0000000000650000-0x0000000000665000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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