tofsee | bb393cf9bbb120a19a336bd850f23d92d0cca7aa70556d8f27cbdd64f2cef23e

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
02-02-2025 01:17

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General

Target

2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe
Size

10.4MB
MD5

f41889aa43d1fcdf7f1f7547f53b2bd3
SHA1

1e13ed50aec8bb2bd2b129135ff85043fabe4f92
SHA256

bb393cf9bbb120a19a336bd850f23d92d0cca7aa70556d8f27cbdd64f2cef23e
SHA512

c53bbf159ce09f67b0802b2f0b175331dcbaa47005b859f7f409df65ff6b03c167446b781f7ba40e0b21cb4c45178c96580efd09f931d1807460a8e823f2dfc3
SSDEEP

24576:96WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ:sWdLQk

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\vkezrjts = "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
2984	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\vkezrjts\ImagePath = "C:\\Windows\\SysWOW64\\vkezrjts\\evdblgnb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2648	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	evdblgnb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2648	2788	evdblgnb.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2128	sc.exe
2780	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 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	svchost.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	evdblgnb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.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	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	31
PID 2108 wrote to memory of 1704	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	31
PID 2108 wrote to memory of 1704	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	31
PID 2108 wrote to memory of 1704	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	31
PID 2108 wrote to memory of 2188	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	33
PID 2108 wrote to memory of 2188	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	33
PID 2108 wrote to memory of 2188	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	33
PID 2108 wrote to memory of 2188	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	33
PID 2108 wrote to memory of 2128	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	35
PID 2108 wrote to memory of 2128	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	35
PID 2108 wrote to memory of 2128	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	35
PID 2108 wrote to memory of 2128	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	35
PID 2108 wrote to memory of 2780	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	37
PID 2108 wrote to memory of 2780	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	37
PID 2108 wrote to memory of 2780	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	37
PID 2108 wrote to memory of 2780	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	37
PID 2108 wrote to memory of 2684	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	39
PID 2108 wrote to memory of 2684	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	39
PID 2108 wrote to memory of 2684	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	39
PID 2108 wrote to memory of 2684	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	39
PID 2788 wrote to memory of 2648	2788	evdblgnb.exe	42
PID 2788 wrote to memory of 2648	2788	evdblgnb.exe	42
PID 2788 wrote to memory of 2648	2788	evdblgnb.exe	42
PID 2788 wrote to memory of 2648	2788	evdblgnb.exe	42
PID 2788 wrote to memory of 2648	2788	evdblgnb.exe	42
PID 2788 wrote to memory of 2648	2788	evdblgnb.exe	42
PID 2108 wrote to memory of 2984	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	43
PID 2108 wrote to memory of 2984	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	43
PID 2108 wrote to memory of 2984	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	43
PID 2108 wrote to memory of 2984	2108	2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_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\vkezrjts\
  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\evdblgnb.exe" C:\Windows\SysWOW64\vkezrjts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2188
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vkezrjts binPath= "C:\Windows\SysWOW64\vkezrjts\evdblgnb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vkezrjts "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vkezrjts
  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:2984

C:\Windows\SysWOW64\vkezrjts\evdblgnb.exe
C:\Windows\SysWOW64\vkezrjts\evdblgnb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_f41889aa43d1fcdf7f1f7547f53b2bd3_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:2648

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\evdblgnb.exe

Filesize
10.5MB

MD5
c7b076c225f8ff1e0d7d16879a39d055

SHA1
e25a80f21e51c8887e4635a44c37af98ff71659e

SHA256
457df6dbb876f0f373c90d933384c9f17c30c1d62ba4ade355403e74c0dda455

SHA512
bdda1c1a5b3f8c3795864704cc08007b1acd89859f5904b17bafd89c609190052ce380042532ae7b27473a6e9ee2222deee54e04ac2f8a7f5b29acec6f943ab0

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

Filesize
76KB

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

Filesize
84KB

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

Filesize
76KB

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

Filesize
84KB

Download
memory/2108-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2108-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2648-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2648-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2648-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2648-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2788-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads