tofsee | d5e651b38925b1b4b78855763b6c32835fad21aa11855cb96001a7d1eb2937fe

General

Target

2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe
Size

13.5MB
MD5

861e7f93d3c3d79d24b078e4374b973d
SHA1

3a70ea015c1aba48c3e285ed694a65e822af1d30
SHA256

d5e651b38925b1b4b78855763b6c32835fad21aa11855cb96001a7d1eb2937fe
SHA512

f8f73f705d3be465857becb4e44d4fec07afcd16bb0dbbae4d80b99f3c2b096740e644f7332c59ead8f9a557b5d43f82c3c21fe010e9d3ae22542176bdbec029
SSDEEP

49152:FVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGH:FVdrl/9zG

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\bnlygnxv = "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
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2936 netsh.exe

pid	process
2936	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\bnlygnxv\ImagePath = "C:\\Windows\\SysWOW64\\bnlygnxv\\dunqxkwv.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2992 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

dunqxkwv.exe

pid process

2916 dunqxkwv.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

dunqxkwv.exe

description pid process target process

PID 2916 set thread context of 2992 2916 dunqxkwv.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2320 sc.exe
2872 sc.exe
2540 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2992	svchost.exe

pid	process
2916	dunqxkwv.exe

description	pid	process	target process
PID 2916 set thread context of 2992	2916	dunqxkwv.exe	svchost.exe

pid	process
2320	sc.exe
2872	sc.exe
2540	sc.exe

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

Processes:

netsh.exe

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

Processes:

sc.exedunqxkwv.execmd.execmd.exesc.exesc.exe2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exenetsh.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dunqxkwv.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	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.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

Processes:

2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exedunqxkwv.exe

description	pid	process	target process
PID 772 wrote to memory of 2484	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 772 wrote to memory of 2484	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 772 wrote to memory of 2484	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 772 wrote to memory of 2484	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 772 wrote to memory of 2428	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 772 wrote to memory of 2428	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 772 wrote to memory of 2428	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 772 wrote to memory of 2428	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 772 wrote to memory of 2320	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2320	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2320	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2320	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2872	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2872	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2872	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2872	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2540	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2540	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2540	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2540	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 772 wrote to memory of 2936	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	netsh.exe
PID 772 wrote to memory of 2936	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	netsh.exe
PID 772 wrote to memory of 2936	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	netsh.exe
PID 772 wrote to memory of 2936	772	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	netsh.exe
PID 2916 wrote to memory of 2992	2916	dunqxkwv.exe	svchost.exe
PID 2916 wrote to memory of 2992	2916	dunqxkwv.exe	svchost.exe
PID 2916 wrote to memory of 2992	2916	dunqxkwv.exe	svchost.exe
PID 2916 wrote to memory of 2992	2916	dunqxkwv.exe	svchost.exe
PID 2916 wrote to memory of 2992	2916	dunqxkwv.exe	svchost.exe
PID 2916 wrote to memory of 2992	2916	dunqxkwv.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:772
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bnlygnxv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dunqxkwv.exe" C:\Windows\SysWOW64\bnlygnxv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bnlygnxv binPath= "C:\Windows\SysWOW64\bnlygnxv\dunqxkwv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bnlygnxv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bnlygnxv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2540
- 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:2936

C:\Windows\SysWOW64\bnlygnxv\dunqxkwv.exe
C:\Windows\SysWOW64\bnlygnxv\dunqxkwv.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- 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:2992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.4MB

MD5
89e6b834e3855017f707f87332d2dfbc

SHA1
06fcc6e8b0c83990f6d02a4769f1503f2a0133fd

SHA256
5b973e8ffb1f9e132a5ab228d93e6d540fb9b130f71411c4c57c0064c7cc1ec9

SHA512
1e27110f823344ca98916c1f84381563f1db79069fcaf8daee1abfc6b4579f13729ea13543801016c47b51d3956ed59ff5387bdff5edd85f7f7e4893d4835044

Download Submit
memory/772-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/772-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/772-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/772-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/772-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/772-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2916-16-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2992-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2992-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads