tofsee | 0652a5f8a2fffb7fd3ce53a5895c5a550b2d755825e6a70369aee019cedb33c3

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 18:50

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General

Target

2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe
Size

12.2MB
MD5

43a80b8b886a686d81d1d75ae7a660c0
SHA1

2599837bcc0f0c22909ca28c5bf04da844b48433
SHA256

0652a5f8a2fffb7fd3ce53a5895c5a550b2d755825e6a70369aee019cedb33c3
SHA512

8d4ed21b7c40fe3df69de4f45ae94578f0fc0e6648337d2be0c1aaeac84f3181c895f25fa420ae98e280d6a118fa9d0825923fb72c063180467dbfd5e571535e
SSDEEP

24576:sEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZD:pfot

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\xojnykvp = "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
2888	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\xojnykvp\ImagePath = "C:\\Windows\\SysWOW64\\xojnykvp\\clfkcbws.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2772	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	clfkcbws.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 2772	2892	clfkcbws.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
1684	sc.exe
3044	sc.exe
2704	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	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	clfkcbws.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 3004	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	31
PID 2316 wrote to memory of 3004	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	31
PID 2316 wrote to memory of 3004	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	31
PID 2316 wrote to memory of 3004	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	31
PID 2316 wrote to memory of 2104	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	33
PID 2316 wrote to memory of 2104	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	33
PID 2316 wrote to memory of 2104	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	33
PID 2316 wrote to memory of 2104	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	33
PID 2316 wrote to memory of 1684	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	35
PID 2316 wrote to memory of 1684	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	35
PID 2316 wrote to memory of 1684	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	35
PID 2316 wrote to memory of 1684	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	35
PID 2316 wrote to memory of 3044	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	37
PID 2316 wrote to memory of 3044	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	37
PID 2316 wrote to memory of 3044	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	37
PID 2316 wrote to memory of 3044	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	37
PID 2316 wrote to memory of 2704	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	39
PID 2316 wrote to memory of 2704	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	39
PID 2316 wrote to memory of 2704	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	39
PID 2316 wrote to memory of 2704	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	39
PID 2892 wrote to memory of 2772	2892	clfkcbws.exe	42
PID 2892 wrote to memory of 2772	2892	clfkcbws.exe	42
PID 2892 wrote to memory of 2772	2892	clfkcbws.exe	42
PID 2892 wrote to memory of 2772	2892	clfkcbws.exe	42
PID 2892 wrote to memory of 2772	2892	clfkcbws.exe	42
PID 2892 wrote to memory of 2772	2892	clfkcbws.exe	42
PID 2316 wrote to memory of 2888	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	43
PID 2316 wrote to memory of 2888	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	43
PID 2316 wrote to memory of 2888	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	43
PID 2316 wrote to memory of 2888	2316	2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xojnykvp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\clfkcbws.exe" C:\Windows\SysWOW64\xojnykvp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xojnykvp binPath= "C:\Windows\SysWOW64\xojnykvp\clfkcbws.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xojnykvp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xojnykvp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- 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:2888

C:\Windows\SysWOW64\xojnykvp\clfkcbws.exe
C:\Windows\SysWOW64\xojnykvp\clfkcbws.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_43a80b8b886a686d81d1d75ae7a660c0_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892
- 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:2772

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\clfkcbws.exe

Filesize
10.8MB

MD5
f9bb03eb55595fa59b764ba785e26bd7

SHA1
42457b052dc5470a99c4e5e51c69b4bd78648129

SHA256
6b05d7e9814e6b2bd812b5ef1b323a1fbc64db76d379043d21d4c763b32667db

SHA512
504d3f0b49cf8f0da9a2f8db7c55dc2f5920e8340347185f08daf14bc823d95640bb7c6314eb685c9c307f08dd9c6c8b5895bfaeb457526a925b20418f05fe0d

Download Submit
memory/2316-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2316-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2316-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2316-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2316-1-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download
memory/2316-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2772-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads