tofsee | 559c410ca07465f980fe946fe7517ea1ffd2e563c6fbef784d782fb3892e6e25

Analysis

max time kernel
143s
max time network
120s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
12/02/2025, 20:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-02-12_459990a478006f968803790876c825aa_mafia.exe
Size

15.0MB
MD5

459990a478006f968803790876c825aa
SHA1

2874e831bce1a7d5f57e1c239bf1aec101a9b68f
SHA256

559c410ca07465f980fe946fe7517ea1ffd2e563c6fbef784d782fb3892e6e25
SHA512

a8757384515aad1f1ab8cd43aed0db61773f7c9f7e281999086f92f70b97405e9656a2d144b41efca4025527113f11fddcbeaa9f9abc5d5dc4c1162e60095f94
SSDEEP

6144:TLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ4:oTYe+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\dfhrsgg = "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
3056	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\dfhrsgg\ImagePath = "C:\\Windows\\SysWOW64\\dfhrsgg\\mrbwqczb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2996	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2536	mrbwqczb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2536 set thread context of 2996	2536	mrbwqczb.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2740	sc.exe
2548	sc.exe
2580	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	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	2025-02-12_459990a478006f968803790876c825aa_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	mrbwqczb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2672	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	31
PID 2756 wrote to memory of 2672	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	31
PID 2756 wrote to memory of 2672	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	31
PID 2756 wrote to memory of 2672	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	31
PID 2756 wrote to memory of 2728	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	33
PID 2756 wrote to memory of 2728	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	33
PID 2756 wrote to memory of 2728	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	33
PID 2756 wrote to memory of 2728	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	33
PID 2756 wrote to memory of 2740	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	35
PID 2756 wrote to memory of 2740	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	35
PID 2756 wrote to memory of 2740	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	35
PID 2756 wrote to memory of 2740	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	35
PID 2756 wrote to memory of 2548	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	37
PID 2756 wrote to memory of 2548	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	37
PID 2756 wrote to memory of 2548	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	37
PID 2756 wrote to memory of 2548	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	37
PID 2756 wrote to memory of 2580	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	39
PID 2756 wrote to memory of 2580	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	39
PID 2756 wrote to memory of 2580	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	39
PID 2756 wrote to memory of 2580	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	39
PID 2756 wrote to memory of 3056	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	42
PID 2756 wrote to memory of 3056	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	42
PID 2756 wrote to memory of 3056	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	42
PID 2756 wrote to memory of 3056	2756	2025-02-12_459990a478006f968803790876c825aa_mafia.exe	42
PID 2536 wrote to memory of 2996	2536	mrbwqczb.exe	44
PID 2536 wrote to memory of 2996	2536	mrbwqczb.exe	44
PID 2536 wrote to memory of 2996	2536	mrbwqczb.exe	44
PID 2536 wrote to memory of 2996	2536	mrbwqczb.exe	44
PID 2536 wrote to memory of 2996	2536	mrbwqczb.exe	44
PID 2536 wrote to memory of 2996	2536	mrbwqczb.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-02-12_459990a478006f968803790876c825aa_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_459990a478006f968803790876c825aa_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dfhrsgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mrbwqczb.exe" C:\Windows\SysWOW64\dfhrsgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dfhrsgg binPath= "C:\Windows\SysWOW64\dfhrsgg\mrbwqczb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_459990a478006f968803790876c825aa_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dfhrsgg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dfhrsgg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2580
- 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:3056

C:\Windows\SysWOW64\dfhrsgg\mrbwqczb.exe
C:\Windows\SysWOW64\dfhrsgg\mrbwqczb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_459990a478006f968803790876c825aa_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- 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:2996

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
10.8MB

MD5
63301dbfc6759b6d866338576b0b6258

SHA1
a6425f4616768c3a8d2355525abb504fd30ebab0

SHA256
f6c381515279637461354da1e085f750a8114d630b8618e2801f0ea46a4b7272

SHA512
79cb2044497668b61fe405935850a36d1a6698f6af8bbdb47caf049ec4058506010b7488358419bde48309a6a86b795ce5c873b1f740c1679500dfa88625c9c9

Download Submit
memory/2536-18-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2756-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2756-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2756-10-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2756-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2756-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2756-3-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2996-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2996-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2996-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2996-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2996-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads