tofsee | d1254107245e25bc26376e9913ae204fb0d1992455e809aa03f51eec910294da

General

Target

2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe
Size

12.4MB
MD5

611a439c5a29846e90960d247620c30d
SHA1

ac34d80dec401c12d05a196385e8ffd4dd02f43e
SHA256

d1254107245e25bc26376e9913ae204fb0d1992455e809aa03f51eec910294da
SHA512

60f373125ee2bec44027b369715e80293c75c450cd3ec54681f920118f2b35365eaa9af3cf8b5d13c14be35d681d42badeb81a7aa837a94dc5f9bbe07777a8f8
SSDEEP

24576:ipomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttE:GooC

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
4884	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\vgwlspor\ImagePath = "C:\\Windows\\SysWOW64\\vgwlspor\\myxlwgoi.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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe

Deletes itself 1 IoCs

pid	Process
4724	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2804	myxlwgoi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2804 set thread context of 4724	2804	myxlwgoi.exe	112

Launches sc.exe 3 IoCs

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

pid	Process
1224	sc.exe
3752	sc.exe
4944	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3076	2352	WerFault.exe	83
4772	2804	WerFault.exe	105

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	myxlwgoi.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	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 3424	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	94
PID 2352 wrote to memory of 3424	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	94
PID 2352 wrote to memory of 3424	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	94
PID 2352 wrote to memory of 2256	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	96
PID 2352 wrote to memory of 2256	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	96
PID 2352 wrote to memory of 2256	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	96
PID 2352 wrote to memory of 1224	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	99
PID 2352 wrote to memory of 1224	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	99
PID 2352 wrote to memory of 1224	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	99
PID 2352 wrote to memory of 3752	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	101
PID 2352 wrote to memory of 3752	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	101
PID 2352 wrote to memory of 3752	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	101
PID 2352 wrote to memory of 4944	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	103
PID 2352 wrote to memory of 4944	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	103
PID 2352 wrote to memory of 4944	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	103
PID 2352 wrote to memory of 4884	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	106
PID 2352 wrote to memory of 4884	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	106
PID 2352 wrote to memory of 4884	2352	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	106
PID 2804 wrote to memory of 4724	2804	myxlwgoi.exe	112
PID 2804 wrote to memory of 4724	2804	myxlwgoi.exe	112
PID 2804 wrote to memory of 4724	2804	myxlwgoi.exe	112
PID 2804 wrote to memory of 4724	2804	myxlwgoi.exe	112
PID 2804 wrote to memory of 4724	2804	myxlwgoi.exe	112

C:\Users\Admin\AppData\Local\Temp\2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vgwlspor\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3424
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\myxlwgoi.exe" C:\Windows\SysWOW64\vgwlspor\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vgwlspor binPath= "C:\Windows\SysWOW64\vgwlspor\myxlwgoi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vgwlspor "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vgwlspor
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4944
- 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:4884
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1192
  2⤵
  - Program crash
  PID:3076

C:\Windows\SysWOW64\vgwlspor\myxlwgoi.exe
C:\Windows\SysWOW64\vgwlspor\myxlwgoi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 528
  2⤵
  - Program crash
  PID:4772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2352 -ip 2352
1⤵
PID:860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2804 -ip 2804
1⤵
PID:4664

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\myxlwgoi.exe

Filesize
12.0MB

MD5
f3db2dd081f07fe882df2601b77418ee

SHA1
53c1d064e5e9cdd43f21954c3c6a9cf81ed2839b

SHA256
f49c781df752efda1c844e1b4f5f23f69c7eda41114a5129ec5ff92cae7229a6

SHA512
021fad09c565b371654c3a0ca49d772c0f0029622d35f1b705e02e50e785085058ac40f2ebafd5262222dd975765bbce6bf6509cc32b80f4a3975f55865bf3eb

Download Submit
memory/2352-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2352-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2352-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2352-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2352-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2352-1-0x00000000006F0000-0x00000000007F0000-memory.dmp

Filesize
1024KB

Download
memory/2804-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2804-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2804-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2804-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4724-14-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download
memory/4724-16-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download
memory/4724-17-0x00000000012F0000-0x0000000001305000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads