tofsee | e30dc001c43316682366ba827b5e9b83cf5e316ac06ea82b72607cc8400fd0e8

General

Target

2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe
Size

12.2MB
MD5

d1dca4137b545cb6fa5221de89f5b392
SHA1

0a31a33baa0f43563ee91a75df82d220750d63fd
SHA256

e30dc001c43316682366ba827b5e9b83cf5e316ac06ea82b72607cc8400fd0e8
SHA512

b2709c878f0ef1267c3c58b3d469640ae058aca242d2bec773e888074ee606bd585d666da37ef44d5852f4388a3a0b842abe0722859999f735886e01b1856d75
SSDEEP

24576:EpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttH:Qoo

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
1256	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\rqujtdxl\ImagePath = "C:\\Windows\\SysWOW64\\rqujtdxl\\ezdvlwyw.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe

Deletes itself 1 IoCs

pid	Process
3896	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2040	ezdvlwyw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 3896	2040	ezdvlwyw.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2088	sc.exe
3292	sc.exe
4244	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
2012	4804	WerFault.exe	81
3332	2040	WerFault.exe	92

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	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	ezdvlwyw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 2732	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	82
PID 4804 wrote to memory of 2732	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	82
PID 4804 wrote to memory of 2732	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	82
PID 4804 wrote to memory of 980	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	84
PID 4804 wrote to memory of 980	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	84
PID 4804 wrote to memory of 980	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	84
PID 4804 wrote to memory of 4244	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	86
PID 4804 wrote to memory of 4244	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	86
PID 4804 wrote to memory of 4244	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	86
PID 4804 wrote to memory of 2088	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	88
PID 4804 wrote to memory of 2088	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	88
PID 4804 wrote to memory of 2088	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	88
PID 4804 wrote to memory of 3292	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	90
PID 4804 wrote to memory of 3292	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	90
PID 4804 wrote to memory of 3292	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	90
PID 4804 wrote to memory of 1256	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	93
PID 4804 wrote to memory of 1256	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	93
PID 4804 wrote to memory of 1256	4804	2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe	93
PID 2040 wrote to memory of 3896	2040	ezdvlwyw.exe	98
PID 2040 wrote to memory of 3896	2040	ezdvlwyw.exe	98
PID 2040 wrote to memory of 3896	2040	ezdvlwyw.exe	98
PID 2040 wrote to memory of 3896	2040	ezdvlwyw.exe	98
PID 2040 wrote to memory of 3896	2040	ezdvlwyw.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rqujtdxl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ezdvlwyw.exe" C:\Windows\SysWOW64\rqujtdxl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rqujtdxl binPath= "C:\Windows\SysWOW64\rqujtdxl\ezdvlwyw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rqujtdxl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rqujtdxl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3292
- 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:1256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 1044
  2⤵
  - Program crash
  PID:2012

C:\Windows\SysWOW64\rqujtdxl\ezdvlwyw.exe
C:\Windows\SysWOW64\rqujtdxl\ezdvlwyw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_d1dca4137b545cb6fa5221de89f5b392_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 532
  2⤵
  - Program crash
  PID:3332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4804 -ip 4804
1⤵
PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2040 -ip 2040
1⤵
PID:1996

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\ezdvlwyw.exe

Filesize
13.1MB

MD5
69ad3ecb47540a01f703ed4b14fbfaf0

SHA1
c39d25e56e45f9ccb2c8866f0f134f1d3b0fed62

SHA256
3c9ea8236605c00122d46cfa3422fb99025b6b594b04ab4e16eadfef84d17793

SHA512
4168100218e1efd88c9ee9ef6985d34dcfe71932daa7e533aa119daf475f97fd101eb6ad89cc7302723d1e4b319f8dfc68fca905d1467ac6a513259f04945cf1

Download Submit
memory/2040-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2040-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2040-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2040-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3896-14-0x0000000000DC0000-0x0000000000DD5000-memory.dmp

Filesize
84KB

Download
memory/3896-16-0x0000000000DC0000-0x0000000000DD5000-memory.dmp

Filesize
84KB

Download
memory/3896-17-0x0000000000DC0000-0x0000000000DD5000-memory.dmp

Filesize
84KB

Download
memory/4804-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4804-8-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download
memory/4804-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4804-1-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/4804-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4804-2-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads