tofsee | 10f5f76b6fce2de585f0ee72990c0d4eeb065c0dcbc13b20c7205abbd4acb0c7

General

Target

2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe
Size

12.1MB
MD5

345d5622052f8b631231e989b5c85efd
SHA1

e90c3bd6d1a5ad151007256374a9fce44ce77c37
SHA256

10f5f76b6fce2de585f0ee72990c0d4eeb065c0dcbc13b20c7205abbd4acb0c7
SHA512

b2af695e19f13313b30c5821076b6ef32c190ac242627f0be5e9d2d8673587ff32f79cf9257f31a4db2dbc3c7b03d649cbbb3fc20ebef88b70f38496084272c8
SSDEEP

6144:aLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQI:bTYe+D2jFu+iZoUFhAz

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
2612	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\rgzehuge\ImagePath = "C:\\Windows\\SysWOW64\\rgzehuge\\npkqjwg.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-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe

Deletes itself 1 IoCs

pid	Process
3660	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	npkqjwg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 3660	2768	npkqjwg.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4524	sc.exe
2828	sc.exe
4284	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
2108	1836	WerFault.exe	82
4708	2768	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	npkqjwg.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.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 1836 wrote to memory of 4552	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	86
PID 1836 wrote to memory of 4552	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	86
PID 1836 wrote to memory of 4552	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	86
PID 1836 wrote to memory of 4792	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	88
PID 1836 wrote to memory of 4792	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	88
PID 1836 wrote to memory of 4792	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	88
PID 1836 wrote to memory of 4524	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	90
PID 1836 wrote to memory of 4524	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	90
PID 1836 wrote to memory of 4524	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	90
PID 1836 wrote to memory of 2828	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	92
PID 1836 wrote to memory of 2828	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	92
PID 1836 wrote to memory of 2828	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	92
PID 1836 wrote to memory of 4284	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	94
PID 1836 wrote to memory of 4284	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	94
PID 1836 wrote to memory of 4284	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	94
PID 1836 wrote to memory of 2612	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	97
PID 1836 wrote to memory of 2612	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	97
PID 1836 wrote to memory of 2612	1836	2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe	97
PID 2768 wrote to memory of 3660	2768	npkqjwg.exe	100
PID 2768 wrote to memory of 3660	2768	npkqjwg.exe	100
PID 2768 wrote to memory of 3660	2768	npkqjwg.exe	100
PID 2768 wrote to memory of 3660	2768	npkqjwg.exe	100
PID 2768 wrote to memory of 3660	2768	npkqjwg.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rgzehuge\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\npkqjwg.exe" C:\Windows\SysWOW64\rgzehuge\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rgzehuge binPath= "C:\Windows\SysWOW64\rgzehuge\npkqjwg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rgzehuge "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rgzehuge
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4284
- 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:2612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 1036
  2⤵
  - Program crash
  PID:2108

C:\Windows\SysWOW64\rgzehuge\npkqjwg.exe
C:\Windows\SysWOW64\rgzehuge\npkqjwg.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_345d5622052f8b631231e989b5c85efd_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 560
  2⤵
  - Program crash
  PID:4708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2768 -ip 2768
1⤵
PID:4208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1836 -ip 1836
1⤵
PID:608

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\npkqjwg.exe

Filesize
12.2MB

MD5
ba8004dfd224f958d2472d564945e3fe

SHA1
b6ca365b14cc1ed03ae03d4e2c3280afeac300cd

SHA256
125980d562698bd4a8f4b9f5fa5c2c2dee1b5092b1233719692ddbda4dbd50aa

SHA512
4a4a99362a7f025249058f4d83cb8dd224ebe9a598a23a002fde0f230713f6bd30788201b63516beca3dec97f18d1302e9d00e116762fe7e84ff436706a56509

Download Submit
memory/1836-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1836-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1836-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/1836-16-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/1836-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/1836-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2768-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2768-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3660-9-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/3660-12-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/3660-18-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/3660-19-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/3660-20-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads