tofsee | 12d4bc95b3a631de6f5087f8cc4080ae4382a0d5397612ac1fd87ed570b162a8

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06-02-2025 03:07

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General

Target

2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe
Size

15.0MB
MD5

e4ebdc82b67d3ae68d35c44c001d69f2
SHA1

1ffedc166d7cc7f026d16ffc66ef654b395c79c9
SHA256

12d4bc95b3a631de6f5087f8cc4080ae4382a0d5397612ac1fd87ed570b162a8
SHA512

509ad39d0c25ea1db6d2463de4033b755f7a0e5b3fbfc1281a6c85fde284946261d0b6be89de50788bacfdebdce738c42e924ed479519d8af8aafd79acacfe71
SSDEEP

49152:4qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPj:4qtYc3k

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\yearuvir = "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
2560	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\yearuvir\ImagePath = "C:\\Windows\\SysWOW64\\yearuvir\\ttufabzh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
796	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	ttufabzh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 796	2784	ttufabzh.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2556	sc.exe
2908	sc.exe
2800	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	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	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.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	ttufabzh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2756	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	30
PID 2240 wrote to memory of 2756	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	30
PID 2240 wrote to memory of 2756	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	30
PID 2240 wrote to memory of 2756	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	30
PID 2240 wrote to memory of 2748	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	32
PID 2240 wrote to memory of 2748	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	32
PID 2240 wrote to memory of 2748	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	32
PID 2240 wrote to memory of 2748	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	32
PID 2240 wrote to memory of 2556	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	34
PID 2240 wrote to memory of 2556	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	34
PID 2240 wrote to memory of 2556	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	34
PID 2240 wrote to memory of 2556	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	34
PID 2240 wrote to memory of 2908	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	36
PID 2240 wrote to memory of 2908	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	36
PID 2240 wrote to memory of 2908	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	36
PID 2240 wrote to memory of 2908	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	36
PID 2240 wrote to memory of 2800	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	38
PID 2240 wrote to memory of 2800	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	38
PID 2240 wrote to memory of 2800	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	38
PID 2240 wrote to memory of 2800	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	38
PID 2240 wrote to memory of 2560	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	41
PID 2240 wrote to memory of 2560	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	41
PID 2240 wrote to memory of 2560	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	41
PID 2240 wrote to memory of 2560	2240	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	41
PID 2784 wrote to memory of 796	2784	ttufabzh.exe	43
PID 2784 wrote to memory of 796	2784	ttufabzh.exe	43
PID 2784 wrote to memory of 796	2784	ttufabzh.exe	43
PID 2784 wrote to memory of 796	2784	ttufabzh.exe	43
PID 2784 wrote to memory of 796	2784	ttufabzh.exe	43
PID 2784 wrote to memory of 796	2784	ttufabzh.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yearuvir\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ttufabzh.exe" C:\Windows\SysWOW64\yearuvir\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yearuvir binPath= "C:\Windows\SysWOW64\yearuvir\ttufabzh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yearuvir "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yearuvir
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- 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:2560

C:\Windows\SysWOW64\yearuvir\ttufabzh.exe
C:\Windows\SysWOW64\yearuvir\ttufabzh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- 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:796

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\ttufabzh.exe

Filesize
10.1MB

MD5
2de1b3894a1fb28a531cb9a54016f637

SHA1
db00fd57fdfab549e09b922dd50b2a73e87e326c

SHA256
10528d071103ee91e22e3fe7abf9f4ef356599b51c97796e2d90bd9686467704

SHA512
a52f2bff5006690b244efc82e59f4c85f5857368b5700c6c39ef9ba5e83c31b8488c3903dcceb6442c46d69b82062ddfdd691942657b8997399b297f993545a7

Download Submit
memory/796-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/796-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/796-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/796-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/796-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2240-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2240-1-0x0000000002E70000-0x0000000002F70000-memory.dmp

Filesize
1024KB

Download
memory/2240-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2240-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2240-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2240-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2784-17-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads