tofsee | e476032fe0cba367b71fd6f1c888053cc057b1394afb08f061841ca057dfb074

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
03-02-2025 18:47

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General

Target

2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe
Size

13.2MB
MD5

f7b0719e0842ad06b11cea96fbbd8838
SHA1

b36d370f676eade7df6fdaa09ff47346ae8e01b3
SHA256

e476032fe0cba367b71fd6f1c888053cc057b1394afb08f061841ca057dfb074
SHA512

8a08d81099173a283add47f0865a016e39d6b68545e1dd5c0be96957d47a8cdc18addd12b8592f030f8babb7640ef7f186a4af3cb6e4ec37c05cfb9fad9ed0db
SSDEEP

6144:QLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQn:FTYe+D2jFu+iZoUFhAzG

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\lcscnvxi = "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
2064	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\lcscnvxi\ImagePath = "C:\\Windows\\SysWOW64\\lcscnvxi\\ykjxisau.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2932	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2908	ykjxisau.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2908 set thread context of 2932	2908	ykjxisau.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2740	sc.exe
2896	sc.exe
2148	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_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	netsh.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	ykjxisau.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 1736	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	30
PID 3012 wrote to memory of 1736	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	30
PID 3012 wrote to memory of 1736	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	30
PID 3012 wrote to memory of 1736	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	30
PID 3012 wrote to memory of 2232	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	32
PID 3012 wrote to memory of 2232	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	32
PID 3012 wrote to memory of 2232	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	32
PID 3012 wrote to memory of 2232	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	32
PID 3012 wrote to memory of 2148	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	34
PID 3012 wrote to memory of 2148	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	34
PID 3012 wrote to memory of 2148	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	34
PID 3012 wrote to memory of 2148	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	34
PID 3012 wrote to memory of 2740	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	36
PID 3012 wrote to memory of 2740	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	36
PID 3012 wrote to memory of 2740	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	36
PID 3012 wrote to memory of 2740	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	36
PID 3012 wrote to memory of 2896	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	38
PID 3012 wrote to memory of 2896	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	38
PID 3012 wrote to memory of 2896	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	38
PID 3012 wrote to memory of 2896	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	38
PID 3012 wrote to memory of 2064	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	41
PID 3012 wrote to memory of 2064	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	41
PID 3012 wrote to memory of 2064	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	41
PID 3012 wrote to memory of 2064	3012	2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe	41
PID 2908 wrote to memory of 2932	2908	ykjxisau.exe	43
PID 2908 wrote to memory of 2932	2908	ykjxisau.exe	43
PID 2908 wrote to memory of 2932	2908	ykjxisau.exe	43
PID 2908 wrote to memory of 2932	2908	ykjxisau.exe	43
PID 2908 wrote to memory of 2932	2908	ykjxisau.exe	43
PID 2908 wrote to memory of 2932	2908	ykjxisau.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lcscnvxi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ykjxisau.exe" C:\Windows\SysWOW64\lcscnvxi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lcscnvxi binPath= "C:\Windows\SysWOW64\lcscnvxi\ykjxisau.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lcscnvxi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lcscnvxi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- 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:2064

C:\Windows\SysWOW64\lcscnvxi\ykjxisau.exe
C:\Windows\SysWOW64\lcscnvxi\ykjxisau.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_f7b0719e0842ad06b11cea96fbbd8838_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2908
- 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:2932

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\ykjxisau.exe

Filesize
11.6MB

MD5
92d57619b4639537b4a85d2b38cf0124

SHA1
4bdb82937773f24c1e041f49a065c4d708d76ff1

SHA256
bee41c3b77f520d23555b871b7f84e4380cba17fbea370aab483ffd497b50574

SHA512
e386f5331709af0f12ffe02d319994db42702171f1a414fe2f350c9f8ba35ca923b06e447f93151ae9032048e1fbcf82b7798d538032a956809e3275d0bf362d

Download Submit
memory/2908-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2932-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2932-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2932-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2932-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2932-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3012-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3012-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3012-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3012-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3012-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3012-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads