tofsee | ca7f5c52ddcc9e02484ca03eef51b4e5f1b5227e0bf4284c0b013117d1c11fa1

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 10:24

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General

Target

2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe
Size

10.5MB
MD5

4fdb0e5442821a0a286a00fda90b53a7
SHA1

ae748a664c3fd546ec1d233b12ebbf134a32cee9
SHA256

ca7f5c52ddcc9e02484ca03eef51b4e5f1b5227e0bf4284c0b013117d1c11fa1
SHA512

36c1d87cba7328a4eea8caebb95a066bfce3865459d3a336bd87323439fd4de56167a683c0dfdcf72f8b7a24a1e483039e632ddf50c0926b433e82d44303b0f1
SSDEEP

6144:GLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQd:XTYe+D2jFu+iZoUFhAz

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\sdeoxewh = "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
2688	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\sdeoxewh\ImagePath = "C:\\Windows\\SysWOW64\\sdeoxewh\\bvvmxgxz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2388	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2800	bvvmxgxz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 2388	2800	bvvmxgxz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2184	sc.exe
2372	sc.exe
2812	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	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	bvvmxgxz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2088	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	31
PID 2028 wrote to memory of 2088	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	31
PID 2028 wrote to memory of 2088	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	31
PID 2028 wrote to memory of 2088	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	31
PID 2028 wrote to memory of 2640	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	33
PID 2028 wrote to memory of 2640	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	33
PID 2028 wrote to memory of 2640	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	33
PID 2028 wrote to memory of 2640	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	33
PID 2028 wrote to memory of 2184	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	35
PID 2028 wrote to memory of 2184	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	35
PID 2028 wrote to memory of 2184	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	35
PID 2028 wrote to memory of 2184	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	35
PID 2028 wrote to memory of 2372	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	37
PID 2028 wrote to memory of 2372	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	37
PID 2028 wrote to memory of 2372	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	37
PID 2028 wrote to memory of 2372	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	37
PID 2028 wrote to memory of 2812	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	39
PID 2028 wrote to memory of 2812	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	39
PID 2028 wrote to memory of 2812	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	39
PID 2028 wrote to memory of 2812	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	39
PID 2028 wrote to memory of 2688	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	42
PID 2028 wrote to memory of 2688	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	42
PID 2028 wrote to memory of 2688	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	42
PID 2028 wrote to memory of 2688	2028	2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe	42
PID 2800 wrote to memory of 2388	2800	bvvmxgxz.exe	43
PID 2800 wrote to memory of 2388	2800	bvvmxgxz.exe	43
PID 2800 wrote to memory of 2388	2800	bvvmxgxz.exe	43
PID 2800 wrote to memory of 2388	2800	bvvmxgxz.exe	43
PID 2800 wrote to memory of 2388	2800	bvvmxgxz.exe	43
PID 2800 wrote to memory of 2388	2800	bvvmxgxz.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sdeoxewh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bvvmxgxz.exe" C:\Windows\SysWOW64\sdeoxewh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sdeoxewh binPath= "C:\Windows\SysWOW64\sdeoxewh\bvvmxgxz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sdeoxewh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sdeoxewh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:2688

C:\Windows\SysWOW64\sdeoxewh\bvvmxgxz.exe
C:\Windows\SysWOW64\sdeoxewh\bvvmxgxz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_4fdb0e5442821a0a286a00fda90b53a7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- 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:2388

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\bvvmxgxz.exe

Filesize
11.2MB

MD5
07259828667f931fd15933050de55ae0

SHA1
4d11d76009037135c20746b4eae0dace651bfe07

SHA256
05a815a80795120628611346f732279e5b34627fa2d8e2583e16a1b6908ab256

SHA512
e52793070c5be40d5758d740bcb38d670b736e74f04408c930175312e7cfa547ce52bf46e2b38ffdd21b0c5e5382d7bcceed6e268380e3581614e0a1c4c0ba78

Download Submit
memory/2028-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2028-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2028-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2028-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2028-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2028-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2388-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2388-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2388-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads