tofsee | 67354b31b1847a125b832183dd256f7b66ad4879a328bdccdc920d0fba5b8839

Analysis

max time kernel
147s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 21:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe
Size

10.2MB
MD5

e8749f4125656b64d35444950d07b83e
SHA1

b6b4996217f862d3945cf72c036884dc3cd77d39
SHA256

67354b31b1847a125b832183dd256f7b66ad4879a328bdccdc920d0fba5b8839
SHA512

5af6ad357b0e46811822aff5690418b71ff8cecc00da9e63f872396a4754099f809f23cf412cea04ba305a87bc1484baf45b3d557326d94b663d85177cc38c6a
SSDEEP

24576:BpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttX:boo

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\owjilefd = "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
2756	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\owjilefd\ImagePath = "C:\\Windows\\SysWOW64\\owjilefd\\vuikyvwo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2780	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	vuikyvwo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2780	2852	vuikyvwo.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
2136	sc.exe
2744	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	vuikyvwo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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
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	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2860	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	29
PID 2304 wrote to memory of 2860	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	29
PID 2304 wrote to memory of 2860	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	29
PID 2304 wrote to memory of 2860	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	29
PID 2304 wrote to memory of 2992	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	31
PID 2304 wrote to memory of 2992	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	31
PID 2304 wrote to memory of 2992	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	31
PID 2304 wrote to memory of 2992	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	31
PID 2304 wrote to memory of 2848	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	33
PID 2304 wrote to memory of 2848	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	33
PID 2304 wrote to memory of 2848	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	33
PID 2304 wrote to memory of 2848	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	33
PID 2304 wrote to memory of 2136	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	35
PID 2304 wrote to memory of 2136	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	35
PID 2304 wrote to memory of 2136	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	35
PID 2304 wrote to memory of 2136	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	35
PID 2304 wrote to memory of 2744	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	37
PID 2304 wrote to memory of 2744	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	37
PID 2304 wrote to memory of 2744	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	37
PID 2304 wrote to memory of 2744	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	37
PID 2304 wrote to memory of 2756	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	39
PID 2304 wrote to memory of 2756	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	39
PID 2304 wrote to memory of 2756	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	39
PID 2304 wrote to memory of 2756	2304	2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe	39
PID 2852 wrote to memory of 2780	2852	vuikyvwo.exe	42
PID 2852 wrote to memory of 2780	2852	vuikyvwo.exe	42
PID 2852 wrote to memory of 2780	2852	vuikyvwo.exe	42
PID 2852 wrote to memory of 2780	2852	vuikyvwo.exe	42
PID 2852 wrote to memory of 2780	2852	vuikyvwo.exe	42
PID 2852 wrote to memory of 2780	2852	vuikyvwo.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\owjilefd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vuikyvwo.exe" C:\Windows\SysWOW64\owjilefd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create owjilefd binPath= "C:\Windows\SysWOW64\owjilefd\vuikyvwo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description owjilefd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start owjilefd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- 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:2756

C:\Windows\SysWOW64\owjilefd\vuikyvwo.exe
C:\Windows\SysWOW64\owjilefd\vuikyvwo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_e8749f4125656b64d35444950d07b83e_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2852
- 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:2780

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\vuikyvwo.exe

Filesize
13.9MB

MD5
a2f3d4023e4a91df07e12efde6dc7f32

SHA1
1bbfbc23cce0113e7dbb151d6a82f44c9c120a3f

SHA256
8f66b0583f82c0f88f9932e02d44da7027fafeb0ab1bff6bce0eae7a6f0995eb

SHA512
5875826a44f3e950dd3673b471e7cc13053b062123d698759e574dc64f650038592c6f5f1d9a361f874af8e4a901026df1b0fd795d499b7c5266b9f6bbf64184

Download Submit
memory/2304-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2304-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2304-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2304-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2780-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2780-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2780-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2780-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2780-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads