tofsee | aa213d778920a7df22810ff2b3e343056f54df60e2c2d56eb65c1617ed6be3df

General

Target

2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe
Size

14.7MB
MD5

1a06c568553494d8ac8fed199bc3f643
SHA1

444d0e357f71486bf1f48b0ff36a87a7015380fc
SHA256

aa213d778920a7df22810ff2b3e343056f54df60e2c2d56eb65c1617ed6be3df
SHA512

499edb398cf25d1b8fab15c367bd87278010b8de2948a02bd582001523ff82999f034edbd1019df850fcbdc777d5c59eca0076cc93e218f05102b8f00c908a60
SSDEEP

24576:opomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttv:Eoo

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
4452	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\voxmtotk\ImagePath = "C:\\Windows\\SysWOW64\\voxmtotk\\kntncnye.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	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe

Deletes itself 1 IoCs

pid	Process
1472	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
548	kntncnye.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 548 set thread context of 1472	548	kntncnye.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2136	sc.exe
3512	sc.exe
4804	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4680	312	WerFault.exe	83
4944	548	WerFault.exe	96

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.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	kntncnye.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 312 wrote to memory of 3080	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	86
PID 312 wrote to memory of 3080	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	86
PID 312 wrote to memory of 3080	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	86
PID 312 wrote to memory of 1764	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	88
PID 312 wrote to memory of 1764	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	88
PID 312 wrote to memory of 1764	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	88
PID 312 wrote to memory of 2136	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	90
PID 312 wrote to memory of 2136	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	90
PID 312 wrote to memory of 2136	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	90
PID 312 wrote to memory of 3512	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	92
PID 312 wrote to memory of 3512	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	92
PID 312 wrote to memory of 3512	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	92
PID 312 wrote to memory of 4804	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	94
PID 312 wrote to memory of 4804	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	94
PID 312 wrote to memory of 4804	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	94
PID 312 wrote to memory of 4452	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	97
PID 312 wrote to memory of 4452	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	97
PID 312 wrote to memory of 4452	312	2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe	97
PID 548 wrote to memory of 1472	548	kntncnye.exe	102
PID 548 wrote to memory of 1472	548	kntncnye.exe	102
PID 548 wrote to memory of 1472	548	kntncnye.exe	102
PID 548 wrote to memory of 1472	548	kntncnye.exe	102
PID 548 wrote to memory of 1472	548	kntncnye.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\voxmtotk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kntncnye.exe" C:\Windows\SysWOW64\voxmtotk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create voxmtotk binPath= "C:\Windows\SysWOW64\voxmtotk\kntncnye.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description voxmtotk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3512
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start voxmtotk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4804
- 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:4452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 312 -s 1040
  2⤵
  - Program crash
  PID:4680

C:\Windows\SysWOW64\voxmtotk\kntncnye.exe
C:\Windows\SysWOW64\voxmtotk\kntncnye.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 548 -s 508
  2⤵
  - Program crash
  PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 312 -ip 312
1⤵
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 548 -ip 548
1⤵
PID:3484

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\kntncnye.exe

Filesize
12.2MB

MD5
6a34d7283d0c6279f8c3a5bdc9006aea

SHA1
91e8f6b31ff10ba14e772df79965850df2d19406

SHA256
187e2d5a95f41b01316e84b826e4148598d7c9210b699d26d52888a402f01d80

SHA512
f18e39cea10fcd88bd898dc6ea78117d4b6034d41e309635bd6c75ff02f5c33e5d3078846aaa490930ba7e3bcaf48176413fbcbd67d1334e1dae75de4c292cd7

Download Submit
memory/312-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/312-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/312-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/312-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/312-8-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/312-2-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/548-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/548-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/548-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1472-13-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/1472-15-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/1472-16-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads