tofsee | b3c4edebec065074e88647ba2c02f93c20a5bab29b615c49b046d8131ea2b555

Analysis

max time kernel
145s
max time network
117s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02/02/2025, 01:16

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General

Target

2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe
Size

11.5MB
MD5

e7d0e588a247415d623d2fcaf07fb3d4
SHA1

1255c46341eb6e623dbccbd07ed09b5d621e3a28
SHA256

b3c4edebec065074e88647ba2c02f93c20a5bab29b615c49b046d8131ea2b555
SHA512

639f519639269ad93c970d39ee515ce436dd87707109a6fe04feceb1126312b31e907f09106cd1a863cb0e0e7bbdc14cc4265636d4e442c591a717e21b04b00c
SSDEEP

24576:nEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZd:Efot

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\mnacsoch = "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
2944	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\mnacsoch\ImagePath = "C:\\Windows\\SysWOW64\\mnacsoch\\joytnzwy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2712	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2932	joytnzwy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 2712	2932	joytnzwy.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2912	sc.exe
2816	sc.exe
2928	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	sc.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	joytnzwy.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	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2380	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	30
PID 2652 wrote to memory of 2380	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	30
PID 2652 wrote to memory of 2380	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	30
PID 2652 wrote to memory of 2380	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	30
PID 2652 wrote to memory of 612	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	32
PID 2652 wrote to memory of 612	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	32
PID 2652 wrote to memory of 612	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	32
PID 2652 wrote to memory of 612	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	32
PID 2652 wrote to memory of 2912	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	34
PID 2652 wrote to memory of 2912	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	34
PID 2652 wrote to memory of 2912	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	34
PID 2652 wrote to memory of 2912	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	34
PID 2652 wrote to memory of 2816	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	36
PID 2652 wrote to memory of 2816	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	36
PID 2652 wrote to memory of 2816	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	36
PID 2652 wrote to memory of 2816	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	36
PID 2652 wrote to memory of 2928	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	38
PID 2652 wrote to memory of 2928	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	38
PID 2652 wrote to memory of 2928	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	38
PID 2652 wrote to memory of 2928	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	38
PID 2932 wrote to memory of 2712	2932	joytnzwy.exe	41
PID 2932 wrote to memory of 2712	2932	joytnzwy.exe	41
PID 2932 wrote to memory of 2712	2932	joytnzwy.exe	41
PID 2932 wrote to memory of 2712	2932	joytnzwy.exe	41
PID 2932 wrote to memory of 2712	2932	joytnzwy.exe	41
PID 2932 wrote to memory of 2712	2932	joytnzwy.exe	41
PID 2652 wrote to memory of 2944	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	42
PID 2652 wrote to memory of 2944	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	42
PID 2652 wrote to memory of 2944	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	42
PID 2652 wrote to memory of 2944	2652	2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mnacsoch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\joytnzwy.exe" C:\Windows\SysWOW64\mnacsoch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mnacsoch binPath= "C:\Windows\SysWOW64\mnacsoch\joytnzwy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mnacsoch "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mnacsoch
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- 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:2944

C:\Windows\SysWOW64\mnacsoch\joytnzwy.exe
C:\Windows\SysWOW64\mnacsoch\joytnzwy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e7d0e588a247415d623d2fcaf07fb3d4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- 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:2712

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\joytnzwy.exe

Filesize
10.9MB

MD5
c3b751fc23428eff03b53f34970d7997

SHA1
11edada946ac7b5b3a969b0616812bd4955a4f5a

SHA256
24084d169cade484f552b1f79070d90444e8cff3b9813696676070630a87be4a

SHA512
14474d17efc352a51c76f189a635c4c2838c656967f9c9391a41e25026c9ae8876a7ff809ac9dbbd953c179f8ce047c46ff81b9dfea48208fafdb6c159886e67

Download Submit
memory/2652-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2652-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2652-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/2652-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2652-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2652-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2712-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2932-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads