tofsee | db9bda7c977f649da2c0c5b871f7a459a84f3f56cfdbf422f5c8185f05a31895

General

Target

2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe
Size

14.5MB
MD5

7e1d94086970fff96cad7928e9b18a8a
SHA1

af71636d08b7d1036ad238cdae3fe4df2232a063
SHA256

db9bda7c977f649da2c0c5b871f7a459a84f3f56cfdbf422f5c8185f05a31895
SHA512

2f0029a26f9cbeb79b96d2ece5f73ed6308c8c40aa0f08346ad71af5b59b676a84a3ee6043188d832c1f2c65e1b8e256ee3566cd44085856c1f382d7048f0477
SSDEEP

24576:6EfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZb:Tfott

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
4604	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\vtgipban\ImagePath = "C:\\Windows\\SysWOW64\\vtgipban\\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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe

Deletes itself 1 IoCs

pid	Process
2944	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5096	kntncnye.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5096 set thread context of 2944	5096	kntncnye.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1472	sc.exe
1584	sc.exe
1784	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
1244	5064	WerFault.exe	82
2920	5096	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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
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	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 1076	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	86
PID 5064 wrote to memory of 1076	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	86
PID 5064 wrote to memory of 1076	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	86
PID 5064 wrote to memory of 4680	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	88
PID 5064 wrote to memory of 4680	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	88
PID 5064 wrote to memory of 4680	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	88
PID 5064 wrote to memory of 1472	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	90
PID 5064 wrote to memory of 1472	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	90
PID 5064 wrote to memory of 1472	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	90
PID 5064 wrote to memory of 1584	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	92
PID 5064 wrote to memory of 1584	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	92
PID 5064 wrote to memory of 1584	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	92
PID 5064 wrote to memory of 1784	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	94
PID 5064 wrote to memory of 1784	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	94
PID 5064 wrote to memory of 1784	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	94
PID 5064 wrote to memory of 4604	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	97
PID 5064 wrote to memory of 4604	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	97
PID 5064 wrote to memory of 4604	5064	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	97
PID 5096 wrote to memory of 2944	5096	kntncnye.exe	102
PID 5096 wrote to memory of 2944	5096	kntncnye.exe	102
PID 5096 wrote to memory of 2944	5096	kntncnye.exe	102
PID 5096 wrote to memory of 2944	5096	kntncnye.exe	102
PID 5096 wrote to memory of 2944	5096	kntncnye.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vtgipban\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kntncnye.exe" C:\Windows\SysWOW64\vtgipban\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vtgipban binPath= "C:\Windows\SysWOW64\vtgipban\kntncnye.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vtgipban "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1584
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vtgipban
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1784
- 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:4604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5064 -s 1204
  2⤵
  - Program crash
  PID:1244

C:\Windows\SysWOW64\vtgipban\kntncnye.exe
C:\Windows\SysWOW64\vtgipban\kntncnye.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5096
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 560
  2⤵
  - Program crash
  PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5064 -ip 5064
1⤵
PID:4424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5096 -ip 5096
1⤵
PID:640

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
14.4MB

MD5
0db1476a4c3fee73d3836036a076bfdd

SHA1
afc59f2b7ca2772330e9dbcd9776912d3a6bb043

SHA256
9d259bcefc553fdc88ba449d2f43ccaf99bb32a8c60e61117a1b9fbde824bba3

SHA512
9425d74c11d1eca8d87e6f8285e96c1a677561bc20cace49963fd1bd0d6e33d0b79ef592b1cd9c1528089b10f8b5a86969f59cb38eb72fa7d38808fb03b74ca4

Download Submit
memory/2944-14-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/2944-17-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/2944-16-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/5064-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/5064-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5064-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/5064-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5064-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5064-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/5096-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5096-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5096-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5096-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads