tofsee | a8786e809db0f73eb45a3751cc5adeed5a3f298de5e9d79ed1833a4177ed12a5

General

Target

2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe
Size

11.7MB
MD5

8b2bfd98f7a67be7cf3cca77f60b2c77
SHA1

d5137cd797229cf309edaea9e77c9e840d564d7c
SHA256

a8786e809db0f73eb45a3751cc5adeed5a3f298de5e9d79ed1833a4177ed12a5
SHA512

c52a4a295e7dd38d4f6e2f8df7fb73c6fb65ae8776d9acdba53bd1989fad22d86984ada35a193feece095000ae6f9e158cf436e76461b54a39560db31814fe96
SSDEEP

196608:IyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:tXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
1812	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\lqpmjhja\ImagePath = "C:\\Windows\\SysWOW64\\lqpmjhja\\kshlywff.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe

Deletes itself 1 IoCs

pid	Process
4920	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3008	kshlywff.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3008 set thread context of 4920	3008	kshlywff.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1948	sc.exe
4208	sc.exe
1268	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kshlywff.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	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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 3144	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	81
PID 4716 wrote to memory of 3144	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	81
PID 4716 wrote to memory of 3144	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	81
PID 4716 wrote to memory of 4092	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	83
PID 4716 wrote to memory of 4092	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	83
PID 4716 wrote to memory of 4092	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	83
PID 4716 wrote to memory of 1948	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	89
PID 4716 wrote to memory of 1948	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	89
PID 4716 wrote to memory of 1948	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	89
PID 4716 wrote to memory of 4208	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	92
PID 4716 wrote to memory of 4208	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	92
PID 4716 wrote to memory of 4208	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	92
PID 4716 wrote to memory of 1268	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	94
PID 4716 wrote to memory of 1268	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	94
PID 4716 wrote to memory of 1268	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	94
PID 3008 wrote to memory of 4920	3008	kshlywff.exe	97
PID 3008 wrote to memory of 4920	3008	kshlywff.exe	97
PID 3008 wrote to memory of 4920	3008	kshlywff.exe	97
PID 3008 wrote to memory of 4920	3008	kshlywff.exe	97
PID 3008 wrote to memory of 4920	3008	kshlywff.exe	97
PID 4716 wrote to memory of 1812	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	98
PID 4716 wrote to memory of 1812	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	98
PID 4716 wrote to memory of 1812	4716	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lqpmjhja\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kshlywff.exe" C:\Windows\SysWOW64\lqpmjhja\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lqpmjhja binPath= "C:\Windows\SysWOW64\lqpmjhja\kshlywff.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lqpmjhja "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lqpmjhja
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1268
- 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:1812

C:\Windows\SysWOW64\lqpmjhja\kshlywff.exe
C:\Windows\SysWOW64\lqpmjhja\kshlywff.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kshlywff.exe

Filesize
13.7MB

MD5
f34517a782500d46bc34be4040d56288

SHA1
a4774898733818331df7293181290cc526c3d2c0

SHA256
1c2575607f7f0c65321a118c49ec295a80d988a4bfc9fb69345c877df88426b2

SHA512
ec4c192df19067a3811f86d42b006024df251e3015edd50c3ae834b9685625e804622a7d92db5ebb5f3144994bca64d31aaa2b6e09ebdcccd51dff98e339ccfb

Download Submit
memory/3008-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3008-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3008-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3008-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4716-18-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4716-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4716-2-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/4716-16-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/4716-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/4716-20-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4716-19-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/4920-10-0x0000000000EF0000-0x0000000000F05000-memory.dmp

Filesize
84KB

Download
memory/4920-17-0x0000000000EF0000-0x0000000000F05000-memory.dmp

Filesize
84KB

Download
memory/4920-21-0x0000000000EF0000-0x0000000000F05000-memory.dmp

Filesize
84KB

Download
memory/4920-22-0x0000000000EF0000-0x0000000000F05000-memory.dmp

Filesize
84KB

Download
memory/4920-23-0x0000000000EF0000-0x0000000000F05000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads