tofsee | 65746616ce1a98e6c66240aed7eafafc1b00d11b8abbee7dc6adcc8d36d8aebf

Analysis

max time kernel
145s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/01/2025, 09:48

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General

Target

2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe
Size

11.9MB
MD5

55b2bf14613a4eaba102c56e35b48354
SHA1

40e400f46bdc4dab10f8e8c98af32ffa8fab298e
SHA256

65746616ce1a98e6c66240aed7eafafc1b00d11b8abbee7dc6adcc8d36d8aebf
SHA512

ea8882e8bf71935d65c5313ebad2ae2a8cb48dd32c5b816bf622879c7b33aa391f93eadf8d02113e2d6feba8d1cb9572c24c2170f08bffc291537b650385576f
SSDEEP

3072:HLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/G:eOMdRQr7OB0ypmMXnl8XEPM3noSWOCf

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\scdndlsl = "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
2760	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\scdndlsl\ImagePath = "C:\\Windows\\SysWOW64\\scdndlsl\\ypxvfahv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2660	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3036	ypxvfahv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3036 set thread context of 2660	3036	ypxvfahv.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2292	sc.exe
2816	sc.exe
2844	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.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	cmd.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	ypxvfahv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 1628	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	30
PID 1992 wrote to memory of 1628	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	30
PID 1992 wrote to memory of 1628	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	30
PID 1992 wrote to memory of 1628	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	30
PID 1992 wrote to memory of 2936	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	32
PID 1992 wrote to memory of 2936	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	32
PID 1992 wrote to memory of 2936	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	32
PID 1992 wrote to memory of 2936	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	32
PID 1992 wrote to memory of 2292	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	34
PID 1992 wrote to memory of 2292	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	34
PID 1992 wrote to memory of 2292	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	34
PID 1992 wrote to memory of 2292	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	34
PID 1992 wrote to memory of 2816	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	36
PID 1992 wrote to memory of 2816	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	36
PID 1992 wrote to memory of 2816	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	36
PID 1992 wrote to memory of 2816	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	36
PID 1992 wrote to memory of 2844	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	38
PID 1992 wrote to memory of 2844	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	38
PID 1992 wrote to memory of 2844	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	38
PID 1992 wrote to memory of 2844	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	38
PID 1992 wrote to memory of 2760	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	41
PID 1992 wrote to memory of 2760	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	41
PID 1992 wrote to memory of 2760	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	41
PID 1992 wrote to memory of 2760	1992	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	41
PID 3036 wrote to memory of 2660	3036	ypxvfahv.exe	43
PID 3036 wrote to memory of 2660	3036	ypxvfahv.exe	43
PID 3036 wrote to memory of 2660	3036	ypxvfahv.exe	43
PID 3036 wrote to memory of 2660	3036	ypxvfahv.exe	43
PID 3036 wrote to memory of 2660	3036	ypxvfahv.exe	43
PID 3036 wrote to memory of 2660	3036	ypxvfahv.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\scdndlsl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ypxvfahv.exe" C:\Windows\SysWOW64\scdndlsl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create scdndlsl binPath= "C:\Windows\SysWOW64\scdndlsl\ypxvfahv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description scdndlsl "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 scdndlsl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- 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:2760

C:\Windows\SysWOW64\scdndlsl\ypxvfahv.exe
C:\Windows\SysWOW64\scdndlsl\ypxvfahv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- 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:2660

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\ypxvfahv.exe

Filesize
10.8MB

MD5
5f287648d2712dad7b0cbf43367b0ca0

SHA1
7b03107720cfeca375197ff6fa5404dd62442a53

SHA256
a011dfbeeb84807536db1fcbbb3ddbebfde4397de8e9532130e8d1cee0240ebe

SHA512
a2b9279fb0e63b209e912ff850cfa718b36e697d8805224bac076d80ca6347f247c5c21a8b1388174ad1ec4a75cdd157425f9017256c10c7fdc78a6c6cdd3ce3

Download Submit
memory/1992-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1992-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1992-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1992-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2660-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2660-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2660-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2660-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2660-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3036-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads