tofsee | 854f50a2d4a6ada7ae92eab917f9d65b9f8663eeaa90b0b801863b3e4e624423

General

Target

2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe
Size

14.1MB
MD5

9da290c096c7a961d9e45b092e14fc4d
SHA1

639cbddfaddefafb549b7241e100cdd4c9fedb27
SHA256

854f50a2d4a6ada7ae92eab917f9d65b9f8663eeaa90b0b801863b3e4e624423
SHA512

76c960bb83651e70cffb4e736670b650e3d1362a6461e268913b7036e071823edf6070a5f567feb055899534fa793d6aa11a9dc60d98d6427b9a406c558e489f
SSDEEP

24576:z6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQn:+WdLQk

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
2372	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\rtvoadhn\ImagePath = "C:\\Windows\\SysWOW64\\rtvoadhn\\nwqvnmhd.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe

Deletes itself 1 IoCs

pid	Process
676	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3536	nwqvnmhd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3536 set thread context of 676	3536	nwqvnmhd.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2880	sc.exe
3736	sc.exe
2964	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2572	2008	WerFault.exe	82
3692	3536	WerFault.exe	94

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	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.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	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	nwqvnmhd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 4920	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	84
PID 2008 wrote to memory of 4920	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	84
PID 2008 wrote to memory of 4920	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	84
PID 2008 wrote to memory of 4940	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	86
PID 2008 wrote to memory of 4940	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	86
PID 2008 wrote to memory of 4940	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	86
PID 2008 wrote to memory of 2880	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	88
PID 2008 wrote to memory of 2880	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	88
PID 2008 wrote to memory of 2880	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	88
PID 2008 wrote to memory of 3736	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	90
PID 2008 wrote to memory of 3736	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	90
PID 2008 wrote to memory of 3736	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	90
PID 2008 wrote to memory of 2964	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	92
PID 2008 wrote to memory of 2964	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	92
PID 2008 wrote to memory of 2964	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	92
PID 2008 wrote to memory of 2372	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	95
PID 2008 wrote to memory of 2372	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	95
PID 2008 wrote to memory of 2372	2008	2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe	95
PID 3536 wrote to memory of 676	3536	nwqvnmhd.exe	101
PID 3536 wrote to memory of 676	3536	nwqvnmhd.exe	101
PID 3536 wrote to memory of 676	3536	nwqvnmhd.exe	101
PID 3536 wrote to memory of 676	3536	nwqvnmhd.exe	101
PID 3536 wrote to memory of 676	3536	nwqvnmhd.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rtvoadhn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4920
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nwqvnmhd.exe" C:\Windows\SysWOW64\rtvoadhn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rtvoadhn binPath= "C:\Windows\SysWOW64\rtvoadhn\nwqvnmhd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rtvoadhn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rtvoadhn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- 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:2372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 792
  2⤵
  - Program crash
  PID:2572

C:\Windows\SysWOW64\rtvoadhn\nwqvnmhd.exe
C:\Windows\SysWOW64\rtvoadhn\nwqvnmhd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_9da290c096c7a961d9e45b092e14fc4d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3536
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 560
  2⤵
  - Program crash
  PID:3692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2008 -ip 2008
1⤵
PID:4744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3536 -ip 3536
1⤵
PID:8

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\nwqvnmhd.exe

Filesize
13.1MB

MD5
a1e5dcaa897871c3f76f9c2bb4da412a

SHA1
df61ae8bd3093ff06376af8444e503116ad05335

SHA256
871ab2406f6468adb4e580ebe4f7d2ee9b7954ecb95786baa2bd3a5d380f8e5f

SHA512
156a1b844781f1b576c2fe908846b83a8ee3019c7e420dee828fb3a2483b4d147b17e55a1d698ad3cafd4316adc7bd1452927ebf3f82bcc2578051611a4088b6

Download Submit
memory/676-14-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/676-17-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/676-16-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/2008-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2008-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2008-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/2008-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2008-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2008-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3536-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3536-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3536-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3536-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads