tofsee | d0db07b9932867d49ce538c4eda5355a7dd2e2c45793dc4f1f278b1539e902d0

Analysis

max time kernel
144s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03/02/2025, 23:55

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General

Target

2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe
Size

12.8MB
MD5

497ebec33e6649e6ccbe753e3e1a779d
SHA1

4061c414369e41657b46bced7b9cb839847fcd54
SHA256

d0db07b9932867d49ce538c4eda5355a7dd2e2c45793dc4f1f278b1539e902d0
SHA512

e1f0d7a8a0e07c9f1de9f24e145ea1644002f4e41e552b25ed8bc69f9c8880424ce659df107c9de13ec89e3cdd0adb4bd18c2b0439faf0443b5fbb52fc4eb970
SSDEEP

24576:NEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZJ:2fotT

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\wyhxfzbl = "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\wyhxfzbl\ImagePath = "C:\\Windows\\SysWOW64\\wyhxfzbl\\luotlkfb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	luotlkfb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2812	2788	luotlkfb.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
608	sc.exe
2756	sc.exe
2684	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	luotlkfb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 1704	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	31
PID 2108 wrote to memory of 1704	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	31
PID 2108 wrote to memory of 1704	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	31
PID 2108 wrote to memory of 1704	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	31
PID 2108 wrote to memory of 2188	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	33
PID 2108 wrote to memory of 2188	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	33
PID 2108 wrote to memory of 2188	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	33
PID 2108 wrote to memory of 2188	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	33
PID 2108 wrote to memory of 608	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	35
PID 2108 wrote to memory of 608	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	35
PID 2108 wrote to memory of 608	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	35
PID 2108 wrote to memory of 608	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	35
PID 2108 wrote to memory of 2756	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	37
PID 2108 wrote to memory of 2756	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	37
PID 2108 wrote to memory of 2756	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	37
PID 2108 wrote to memory of 2756	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	37
PID 2108 wrote to memory of 2684	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	39
PID 2108 wrote to memory of 2684	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	39
PID 2108 wrote to memory of 2684	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	39
PID 2108 wrote to memory of 2684	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	39
PID 2788 wrote to memory of 2812	2788	luotlkfb.exe	42
PID 2788 wrote to memory of 2812	2788	luotlkfb.exe	42
PID 2788 wrote to memory of 2812	2788	luotlkfb.exe	42
PID 2788 wrote to memory of 2812	2788	luotlkfb.exe	42
PID 2788 wrote to memory of 2812	2788	luotlkfb.exe	42
PID 2788 wrote to memory of 2812	2788	luotlkfb.exe	42
PID 2108 wrote to memory of 2560	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	43
PID 2108 wrote to memory of 2560	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	43
PID 2108 wrote to memory of 2560	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	43
PID 2108 wrote to memory of 2560	2108	2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wyhxfzbl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\luotlkfb.exe" C:\Windows\SysWOW64\wyhxfzbl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2188
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wyhxfzbl binPath= "C:\Windows\SysWOW64\wyhxfzbl\luotlkfb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wyhxfzbl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wyhxfzbl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- 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\wyhxfzbl\luotlkfb.exe
C:\Windows\SysWOW64\wyhxfzbl\luotlkfb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_497ebec33e6649e6ccbe753e3e1a779d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- 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:2812

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\luotlkfb.exe

Filesize
10.0MB

MD5
5078976a4aeb321f1205e5f89584aeff

SHA1
04c0ededfa93a869355069bac43d0584f785c148

SHA256
f23501dfb03763a7641a38118161b06fbc300e2d6e6442f508169b070ff670da

SHA512
df83b4a06537bc12ad2c2a6339f43af63a4dcbdbcfef5f93ce07944e0fa6082337953b28bae2c2077e925309de642ec653a5e15ee8db791a398c6a1e4afbf355

Download Submit
memory/2108-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2108-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2108-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2108-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2108-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2108-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2788-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2812-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads