tofsee | 14eb214a2f3fb3385fdc544cfeda6fbcccab2af6728b58683f53a597b9260e6d

Analysis

max time kernel
145s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 23:33

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General

Target

2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe
Size

14.6MB
MD5

eaaa33fba165a45395a43fc7ec05b1bc
SHA1

4ab77efaa1c8ad37cd8c605fb684d467f06d0db4
SHA256

14eb214a2f3fb3385fdc544cfeda6fbcccab2af6728b58683f53a597b9260e6d
SHA512

7d01895d08632def6e9d8bdbdedee9853be716c03b20be6b296ad1141c442d461d5f5c83fc4ef7def960bb6cf357d8848d3148ee38c4af60bc53fd3dac625e14
SSDEEP

24576:cEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZl:Zfot

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\fukfhdxw = "0"	svchost.exe

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
2308	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\fukfhdxw\ImagePath = "C:\\Windows\\SysWOW64\\fukfhdxw\\njbbynma.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1836	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2816	njbbynma.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 1836	2816	njbbynma.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2536	sc.exe
3004	sc.exe
2900	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

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	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	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	njbbynma.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 3028	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	30
PID 2484 wrote to memory of 3028	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	30
PID 2484 wrote to memory of 3028	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	30
PID 2484 wrote to memory of 3028	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	30
PID 2484 wrote to memory of 2752	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	32
PID 2484 wrote to memory of 2752	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	32
PID 2484 wrote to memory of 2752	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	32
PID 2484 wrote to memory of 2752	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	32
PID 2484 wrote to memory of 2536	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	34
PID 2484 wrote to memory of 2536	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	34
PID 2484 wrote to memory of 2536	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	34
PID 2484 wrote to memory of 2536	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	34
PID 2484 wrote to memory of 3004	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	36
PID 2484 wrote to memory of 3004	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	36
PID 2484 wrote to memory of 3004	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	36
PID 2484 wrote to memory of 3004	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	36
PID 2484 wrote to memory of 2900	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	38
PID 2484 wrote to memory of 2900	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	38
PID 2484 wrote to memory of 2900	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	38
PID 2484 wrote to memory of 2900	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	38
PID 2816 wrote to memory of 1836	2816	njbbynma.exe	41
PID 2816 wrote to memory of 1836	2816	njbbynma.exe	41
PID 2816 wrote to memory of 1836	2816	njbbynma.exe	41
PID 2816 wrote to memory of 1836	2816	njbbynma.exe	41
PID 2816 wrote to memory of 1836	2816	njbbynma.exe	41
PID 2816 wrote to memory of 1836	2816	njbbynma.exe	41
PID 2484 wrote to memory of 2308	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	42
PID 2484 wrote to memory of 2308	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	42
PID 2484 wrote to memory of 2308	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	42
PID 2484 wrote to memory of 2308	2484	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fukfhdxw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\njbbynma.exe" C:\Windows\SysWOW64\fukfhdxw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fukfhdxw binPath= "C:\Windows\SysWOW64\fukfhdxw\njbbynma.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fukfhdxw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fukfhdxw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:2308

C:\Windows\SysWOW64\fukfhdxw\njbbynma.exe
C:\Windows\SysWOW64\fukfhdxw\njbbynma.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\njbbynma.exe

Filesize
13.4MB

MD5
a42bb837c006aa205c2d6c60fb00ec5e

SHA1
9ca4348e11927e91ff24f710b148e6f779186678

SHA256
15d36e25ae1df3064cf021d0c22cfb8a8e319b96a7dc4087300d874bd4946bd2

SHA512
900a69fd32418a6acbd610f1033b9a8bca05fb1f4c099cedd1e02a296e236616b8d21d05d12f8d4a9d5099a2b9681cbdad8dbb8e48098d201cc20ae9a46270e8

Download Submit
memory/1836-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1836-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1836-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1836-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1836-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2484-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/2484-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2484-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2484-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2484-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2816-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads