tofsee | 12d4bc95b3a631de6f5087f8cc4080ae4382a0d5397612ac1fd87ed570b162a8

General

Target

2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe
Size

15.0MB
MD5

e4ebdc82b67d3ae68d35c44c001d69f2
SHA1

1ffedc166d7cc7f026d16ffc66ef654b395c79c9
SHA256

12d4bc95b3a631de6f5087f8cc4080ae4382a0d5397612ac1fd87ed570b162a8
SHA512

509ad39d0c25ea1db6d2463de4033b755f7a0e5b3fbfc1281a6c85fde284946261d0b6be89de50788bacfdebdce738c42e924ed479519d8af8aafd79acacfe71
SSDEEP

49152:4qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPj:4qtYc3k

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
3856	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\hkmvnvod\ImagePath = "C:\\Windows\\SysWOW64\\hkmvnvod\\xswoeprp.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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe

Deletes itself 1 IoCs

pid	Process
2124	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4800	xswoeprp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 2124	4800	xswoeprp.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4824	sc.exe
3768	sc.exe
1388	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
4064	4800	WerFault.exe	100
2208	404	WerFault.exe	83

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	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_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	xswoeprp.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 2520	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	87
PID 404 wrote to memory of 2520	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	87
PID 404 wrote to memory of 2520	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	87
PID 404 wrote to memory of 868	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	89
PID 404 wrote to memory of 868	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	89
PID 404 wrote to memory of 868	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	89
PID 404 wrote to memory of 4824	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	91
PID 404 wrote to memory of 4824	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	91
PID 404 wrote to memory of 4824	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	91
PID 404 wrote to memory of 3768	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	95
PID 404 wrote to memory of 3768	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	95
PID 404 wrote to memory of 3768	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	95
PID 404 wrote to memory of 1388	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	98
PID 404 wrote to memory of 1388	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	98
PID 404 wrote to memory of 1388	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	98
PID 4800 wrote to memory of 2124	4800	xswoeprp.exe	101
PID 4800 wrote to memory of 2124	4800	xswoeprp.exe	101
PID 4800 wrote to memory of 2124	4800	xswoeprp.exe	101
PID 4800 wrote to memory of 2124	4800	xswoeprp.exe	101
PID 4800 wrote to memory of 2124	4800	xswoeprp.exe	101
PID 404 wrote to memory of 3856	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	106
PID 404 wrote to memory of 3856	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	106
PID 404 wrote to memory of 3856	404	2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe	106

C:\Users\Admin\AppData\Local\Temp\2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:404
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hkmvnvod\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xswoeprp.exe" C:\Windows\SysWOW64\hkmvnvod\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hkmvnvod binPath= "C:\Windows\SysWOW64\hkmvnvod\xswoeprp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hkmvnvod "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hkmvnvod
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1388
- 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:3856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 652
  2⤵
  - Program crash
  PID:2208

C:\Windows\SysWOW64\hkmvnvod\xswoeprp.exe
C:\Windows\SysWOW64\hkmvnvod\xswoeprp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_e4ebdc82b67d3ae68d35c44c001d69f2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 560
  2⤵
  - Program crash
  PID:4064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4800 -ip 4800
1⤵
PID:3176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 404 -ip 404
1⤵
PID:2992

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\xswoeprp.exe

Filesize
10.3MB

MD5
6dd13a57c6a06a93be7ae34d9cb92a6a

SHA1
4a7551506dcd411a6385e2a985ba4429de2f63ea

SHA256
103f257a6c4a8617124389d69bc1ae7315e8c0d773548b1eed2d4a4044bdd2be

SHA512
8dfcb3439993a08c21330a926ef161ff0a81f05879a81baad13bfb025c414f161d18590717277ae0c34fd4113caa66cc524589ee919a572936273ad0fa105cc9

Download Submit
memory/404-1-0x0000000002F00000-0x0000000003000000-memory.dmp

Filesize
1024KB

Download
memory/404-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/404-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/404-12-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/404-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/404-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2124-8-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/2124-14-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/2124-15-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/4800-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads