tofsee | 87a0db19083558b7383108d51b80eb6505f25d869dfd6c36ba9e66292d74a490

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 21:19

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General

Target

2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe
Size

12.9MB
MD5

99c64ff1e1f52348d4b7dbbf5a0632f9
SHA1

12eece8338d93ed9dd22903f4e6c64d8e6f6531a
SHA256

87a0db19083558b7383108d51b80eb6505f25d869dfd6c36ba9e66292d74a490
SHA512

7eabb767096cb2cd25a019470018f7e69a8bb75872970eea7cb5aabb4bffb84d11261df95e7f619a4c5562ab893928ef69d38d40ed87c65d360eba3594d3176e
SSDEEP

24576:W6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQY:XWdLQk

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\yajlqunl = "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
2740	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\yajlqunl\ImagePath = "C:\\Windows\\SysWOW64\\yajlqunl\\sxhcwifh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2732	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2888	sxhcwifh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 2732	2888	sxhcwifh.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2148	sc.exe
2460	sc.exe
2756	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	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	sxhcwifh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 1216	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	30
PID 1804 wrote to memory of 1216	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	30
PID 1804 wrote to memory of 1216	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	30
PID 1804 wrote to memory of 1216	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	30
PID 1804 wrote to memory of 2528	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	32
PID 1804 wrote to memory of 2528	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	32
PID 1804 wrote to memory of 2528	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	32
PID 1804 wrote to memory of 2528	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	32
PID 1804 wrote to memory of 2148	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	34
PID 1804 wrote to memory of 2148	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	34
PID 1804 wrote to memory of 2148	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	34
PID 1804 wrote to memory of 2148	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	34
PID 1804 wrote to memory of 2460	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	36
PID 1804 wrote to memory of 2460	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	36
PID 1804 wrote to memory of 2460	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	36
PID 1804 wrote to memory of 2460	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	36
PID 1804 wrote to memory of 2756	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	38
PID 1804 wrote to memory of 2756	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	38
PID 1804 wrote to memory of 2756	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	38
PID 1804 wrote to memory of 2756	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	38
PID 2888 wrote to memory of 2732	2888	sxhcwifh.exe	41
PID 2888 wrote to memory of 2732	2888	sxhcwifh.exe	41
PID 2888 wrote to memory of 2732	2888	sxhcwifh.exe	41
PID 2888 wrote to memory of 2732	2888	sxhcwifh.exe	41
PID 2888 wrote to memory of 2732	2888	sxhcwifh.exe	41
PID 2888 wrote to memory of 2732	2888	sxhcwifh.exe	41
PID 1804 wrote to memory of 2740	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	42
PID 1804 wrote to memory of 2740	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	42
PID 1804 wrote to memory of 2740	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	42
PID 1804 wrote to memory of 2740	1804	2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yajlqunl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sxhcwifh.exe" C:\Windows\SysWOW64\yajlqunl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yajlqunl binPath= "C:\Windows\SysWOW64\yajlqunl\sxhcwifh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_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 yajlqunl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2460
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yajlqunl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- 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:2740

C:\Windows\SysWOW64\yajlqunl\sxhcwifh.exe
C:\Windows\SysWOW64\yajlqunl\sxhcwifh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_99c64ff1e1f52348d4b7dbbf5a0632f9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- 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:2732

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\sxhcwifh.exe

Filesize
12.1MB

MD5
6ef744b569934cae1f6926adfda93898

SHA1
d5eee0b354e1620d36eb443e956983daa9e2fcc0

SHA256
cf0ddb339a6b97285bfb7c16f6a6be25587b9d16c6741801980c243f8e425cbd

SHA512
9ce5d612d7523f0ca55b7344a2543ca4b18d93ff88759fd01e173233fdb79999dc97d6c9f58993343dceb87a1ece3a942e7e18bcb80337ac6a08ed0ede31dcb6

Download Submit
memory/1804-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1804-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1804-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1804-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1804-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1804-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2732-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2732-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2732-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2732-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2732-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads