tofsee | 6f0e1e995f076fae089a915ed7cf6063a12c9ea942979da0fa1e07b94e29169a

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 20:13

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General

Target

2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe
Size

10.4MB
MD5

ea6a79472c1a6baf04ad2dd54187b0f8
SHA1

36f78e2b7ca99d0ab92a2f15f101624845a41bcb
SHA256

6f0e1e995f076fae089a915ed7cf6063a12c9ea942979da0fa1e07b94e29169a
SHA512

8d8c0892601deaba2ad3c8abc6cb4e9f84c8fa0c0a400471906571f314729ee02e1018033c093ee4a067c13439b53092fbc78cba59f766731e77c9ffc44fd51c
SSDEEP

3072:tLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:wOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\usrslxrn = "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
2632	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\usrslxrn\ImagePath = "C:\\Windows\\SysWOW64\\usrslxrn\\lgkcsdfd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2616	lgkcsdfd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2616 set thread context of 2816	2616	lgkcsdfd.exe	39

Launches sc.exe 3 IoCs

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

pid	Process
804	sc.exe
2436	sc.exe
2000	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	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lgkcsdfd.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 2024 wrote to memory of 2452	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	28
PID 2024 wrote to memory of 2452	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	28
PID 2024 wrote to memory of 2452	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	28
PID 2024 wrote to memory of 2452	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	28
PID 2024 wrote to memory of 2244	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	30
PID 2024 wrote to memory of 2244	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	30
PID 2024 wrote to memory of 2244	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	30
PID 2024 wrote to memory of 2244	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	30
PID 2024 wrote to memory of 804	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	32
PID 2024 wrote to memory of 804	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	32
PID 2024 wrote to memory of 804	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	32
PID 2024 wrote to memory of 804	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	32
PID 2024 wrote to memory of 2436	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	34
PID 2024 wrote to memory of 2436	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	34
PID 2024 wrote to memory of 2436	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	34
PID 2024 wrote to memory of 2436	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	34
PID 2024 wrote to memory of 2000	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	36
PID 2024 wrote to memory of 2000	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	36
PID 2024 wrote to memory of 2000	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	36
PID 2024 wrote to memory of 2000	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	36
PID 2616 wrote to memory of 2816	2616	lgkcsdfd.exe	39
PID 2616 wrote to memory of 2816	2616	lgkcsdfd.exe	39
PID 2616 wrote to memory of 2816	2616	lgkcsdfd.exe	39
PID 2616 wrote to memory of 2816	2616	lgkcsdfd.exe	39
PID 2616 wrote to memory of 2816	2616	lgkcsdfd.exe	39
PID 2616 wrote to memory of 2816	2616	lgkcsdfd.exe	39
PID 2024 wrote to memory of 2632	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	40
PID 2024 wrote to memory of 2632	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	40
PID 2024 wrote to memory of 2632	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	40
PID 2024 wrote to memory of 2632	2024	2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe	40

C:\Users\Admin\AppData\Local\Temp\2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\usrslxrn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lgkcsdfd.exe" C:\Windows\SysWOW64\usrslxrn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create usrslxrn binPath= "C:\Windows\SysWOW64\usrslxrn\lgkcsdfd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description usrslxrn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start usrslxrn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2000
- 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:2632

C:\Windows\SysWOW64\usrslxrn\lgkcsdfd.exe
C:\Windows\SysWOW64\usrslxrn\lgkcsdfd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_ea6a79472c1a6baf04ad2dd54187b0f8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2616
- 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:2816

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\lgkcsdfd.exe

Filesize
14.7MB

MD5
cefa326578af18c66f2c75bba882cdaa

SHA1
cefe24ea2c91be5d71ca7663d69bccd0660e4372

SHA256
919feaeb0db9bae7672165a0fa874f4104ee782bd10b3a7e81fd604784a09042

SHA512
357c163c326958e4d9ca18cac11a51bf25e0e16ef2697c4856d04d0d8f250d890f1da96b637a63e97be51946cdc95d3d8ea1b824d154c6550a7013e8b8aa6560

Download Submit
memory/2024-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2024-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2024-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2024-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2024-1-0x00000000008B0000-0x00000000009B0000-memory.dmp

Filesize
1024KB

Download
memory/2024-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2616-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2816-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2816-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2816-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2816-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads