tofsee | 5880ebc26222ca34e47612c63eb9cc398de042e2243527216bf009a7c3c75596

Analysis

max time kernel
148s
max time network
117s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:01

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General

Target

2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe
Size

14.4MB
MD5

2de255e3938415c2a4fba9560c69b8db
SHA1

e68dc1902ee4b39fe1edf2deeb7fc93d33f80887
SHA256

5880ebc26222ca34e47612c63eb9cc398de042e2243527216bf009a7c3c75596
SHA512

e578495daba40a41652ed8b6df44830a2d8c62d431879ecf3d12a1504f9448a14fa5a236e3c2a75bab748564a9c3421479ac63c3c8683f1889977cfab2bd02be
SSDEEP

3072:5LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:8OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\wezbziel = "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
1644	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\wezbziel\ImagePath = "C:\\Windows\\SysWOW64\\wezbziel\\enhmedyu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1060	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2616	enhmedyu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2616 set thread context of 1060	2616	enhmedyu.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2836	sc.exe
2348	sc.exe
2716	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_2de255e3938415c2a4fba9560c69b8db_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	enhmedyu.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2756	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	31
PID 2708 wrote to memory of 2756	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	31
PID 2708 wrote to memory of 2756	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	31
PID 2708 wrote to memory of 2756	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	31
PID 2708 wrote to memory of 2608	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	33
PID 2708 wrote to memory of 2608	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	33
PID 2708 wrote to memory of 2608	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	33
PID 2708 wrote to memory of 2608	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	33
PID 2708 wrote to memory of 2836	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	35
PID 2708 wrote to memory of 2836	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	35
PID 2708 wrote to memory of 2836	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	35
PID 2708 wrote to memory of 2836	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	35
PID 2708 wrote to memory of 2348	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	37
PID 2708 wrote to memory of 2348	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	37
PID 2708 wrote to memory of 2348	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	37
PID 2708 wrote to memory of 2348	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	37
PID 2708 wrote to memory of 2716	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	39
PID 2708 wrote to memory of 2716	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	39
PID 2708 wrote to memory of 2716	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	39
PID 2708 wrote to memory of 2716	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	39
PID 2616 wrote to memory of 1060	2616	enhmedyu.exe	42
PID 2616 wrote to memory of 1060	2616	enhmedyu.exe	42
PID 2616 wrote to memory of 1060	2616	enhmedyu.exe	42
PID 2616 wrote to memory of 1060	2616	enhmedyu.exe	42
PID 2616 wrote to memory of 1060	2616	enhmedyu.exe	42
PID 2616 wrote to memory of 1060	2616	enhmedyu.exe	42
PID 2708 wrote to memory of 1644	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	43
PID 2708 wrote to memory of 1644	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	43
PID 2708 wrote to memory of 1644	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	43
PID 2708 wrote to memory of 1644	2708	2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wezbziel\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\enhmedyu.exe" C:\Windows\SysWOW64\wezbziel\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wezbziel binPath= "C:\Windows\SysWOW64\wezbziel\enhmedyu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_2de255e3938415c2a4fba9560c69b8db_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wezbziel "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wezbziel
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- 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:1644

C:\Windows\SysWOW64\wezbziel\enhmedyu.exe
C:\Windows\SysWOW64\wezbziel\enhmedyu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_2de255e3938415c2a4fba9560c69b8db_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:1060

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\enhmedyu.exe

Filesize
10.1MB

MD5
28ef0503ad4185c7b934c52e81d6be4e

SHA1
0bcd5224b23836648cc77d79025a555604169794

SHA256
e2b644448b7a739d1f3718f6fd37bd7c4017e3f8b620d43368252d45e3905368

SHA512
0ef1a68be54fe1928dd96650102a949db3e0ac7d4d2855c94545a13eb1276bb67eb0032fc6d1d4d8ebbdf0f6ffdc261aa006d535ba44f3e4440195c7d792cb79

Download Submit
memory/1060-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1060-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1060-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1060-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1060-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

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

Filesize
312KB

Download
memory/2708-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2708-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2708-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2708-16-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2708-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads