tofsee | 91f1a926f468016df323494e05f10cd9599caace8a2763855317583a1304ec91

General

Target

2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe
Size

13.3MB
MD5

70d5445aff643254820787e3d9d98fd7
SHA1

05a3e621f1ff47a109c7e96b93c51a7691ff122e
SHA256

91f1a926f468016df323494e05f10cd9599caace8a2763855317583a1304ec91
SHA512

669fee94508138f34d52478a40fb78ac8fd3994e991e30204b4edfd5160c21b87d77720079603a1548d79f91fb00e074dc38dd24da3a6b9a9ab2fd37e537b744
SSDEEP

393216:vXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:

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
1140	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\yduigbhu\ImagePath = "C:\\Windows\\SysWOW64\\yduigbhu\\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-1-5-21-805940606-1861219160-370298170-1000\Control Panel\International\Geo\Nation	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe

Deletes itself 1 IoCs

pid	Process
3148	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4816	ezdvlwyw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4816 set thread context of 3148	4816	ezdvlwyw.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3484	sc.exe
776	sc.exe
3572	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	2025-02-02_70d5445aff643254820787e3d9d98fd7_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	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	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 1716 wrote to memory of 3136	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	86
PID 1716 wrote to memory of 3136	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	86
PID 1716 wrote to memory of 3136	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	86
PID 1716 wrote to memory of 1620	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	88
PID 1716 wrote to memory of 1620	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	88
PID 1716 wrote to memory of 1620	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	88
PID 1716 wrote to memory of 3484	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	91
PID 1716 wrote to memory of 3484	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	91
PID 1716 wrote to memory of 3484	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	91
PID 1716 wrote to memory of 776	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	94
PID 1716 wrote to memory of 776	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	94
PID 1716 wrote to memory of 776	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	94
PID 1716 wrote to memory of 3572	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	97
PID 1716 wrote to memory of 3572	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	97
PID 1716 wrote to memory of 3572	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	97
PID 1716 wrote to memory of 1140	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	100
PID 1716 wrote to memory of 1140	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	100
PID 1716 wrote to memory of 1140	1716	2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe	100
PID 4816 wrote to memory of 3148	4816	ezdvlwyw.exe	102
PID 4816 wrote to memory of 3148	4816	ezdvlwyw.exe	102
PID 4816 wrote to memory of 3148	4816	ezdvlwyw.exe	102
PID 4816 wrote to memory of 3148	4816	ezdvlwyw.exe	102
PID 4816 wrote to memory of 3148	4816	ezdvlwyw.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yduigbhu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3136
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ezdvlwyw.exe" C:\Windows\SysWOW64\yduigbhu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yduigbhu binPath= "C:\Windows\SysWOW64\yduigbhu\ezdvlwyw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yduigbhu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yduigbhu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3572
- 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:1140

C:\Windows\SysWOW64\yduigbhu\ezdvlwyw.exe
C:\Windows\SysWOW64\yduigbhu\ezdvlwyw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_70d5445aff643254820787e3d9d98fd7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3148

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
10.8MB

MD5
538af626ce6fd98c266024a58fbe7fdf

SHA1
43227c5c8a1bb5a965d2f948457f46c2669988c1

SHA256
1a131bac385d692d3c4eb6397031e6566eccee8e05dbbd47da48c4c5301a8eab

SHA512
53fa0d0d7b7b3f4c3991b87c16fd7db1317820c7a0806dda25e27d90d9e1b712e5e5e41d18a42bd5b2fe1b8a6b59126fd064b68e80f9155c039737a498def530

Download Submit
memory/1716-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1716-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1716-2-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/1716-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1716-10-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/1716-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/3148-13-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/3148-19-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/3148-18-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/3148-20-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/3148-21-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/4816-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4816-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4816-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads