tofsee | 192386732793c770bb79aa48d08b07157d91ffbea0b8c160a375332449315427

Analysis

max time kernel
147s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-01-2025 18:34

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General

Target

2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe
Size

12.9MB
MD5

9c9b17f6b73a1ae4ba6aa8f18683baf6
SHA1

7c93481fdddda48753403d62faf2e624d126bbcc
SHA256

192386732793c770bb79aa48d08b07157d91ffbea0b8c160a375332449315427
SHA512

4a4775f3f14d81c5d050129ae08b43530361386e8cde310038201d8989d8067c3436432d7ff8508acb9a47ff774855086f608a87c28345a791d39f5b864ba46a
SSDEEP

3072:9LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:AOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\zndunagv = "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
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\zndunagv\ImagePath = "C:\\Windows\\SysWOW64\\zndunagv\\tkgnedhl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3016	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2560	tkgnedhl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2560 set thread context of 3016	2560	tkgnedhl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2812	sc.exe
2800	sc.exe
2680	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.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	tkgnedhl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2936	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	30
PID 2684 wrote to memory of 2936	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	30
PID 2684 wrote to memory of 2936	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	30
PID 2684 wrote to memory of 2936	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	30
PID 2684 wrote to memory of 2928	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	32
PID 2684 wrote to memory of 2928	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	32
PID 2684 wrote to memory of 2928	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	32
PID 2684 wrote to memory of 2928	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	32
PID 2684 wrote to memory of 2800	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	34
PID 2684 wrote to memory of 2800	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	34
PID 2684 wrote to memory of 2800	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	34
PID 2684 wrote to memory of 2800	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	34
PID 2684 wrote to memory of 2680	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	36
PID 2684 wrote to memory of 2680	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	36
PID 2684 wrote to memory of 2680	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	36
PID 2684 wrote to memory of 2680	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	36
PID 2684 wrote to memory of 2812	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	38
PID 2684 wrote to memory of 2812	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	38
PID 2684 wrote to memory of 2812	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	38
PID 2684 wrote to memory of 2812	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	38
PID 2684 wrote to memory of 2612	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	41
PID 2684 wrote to memory of 2612	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	41
PID 2684 wrote to memory of 2612	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	41
PID 2684 wrote to memory of 2612	2684	2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe	41
PID 2560 wrote to memory of 3016	2560	tkgnedhl.exe	43
PID 2560 wrote to memory of 3016	2560	tkgnedhl.exe	43
PID 2560 wrote to memory of 3016	2560	tkgnedhl.exe	43
PID 2560 wrote to memory of 3016	2560	tkgnedhl.exe	43
PID 2560 wrote to memory of 3016	2560	tkgnedhl.exe	43
PID 2560 wrote to memory of 3016	2560	tkgnedhl.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zndunagv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tkgnedhl.exe" C:\Windows\SysWOW64\zndunagv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zndunagv binPath= "C:\Windows\SysWOW64\zndunagv\tkgnedhl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zndunagv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zndunagv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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\zndunagv\tkgnedhl.exe
C:\Windows\SysWOW64\zndunagv\tkgnedhl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_9c9b17f6b73a1ae4ba6aa8f18683baf6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2560
- 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:3016

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\tkgnedhl.exe

Filesize
13.7MB

MD5
36ad0603776f34d90e13324ccdf9732b

SHA1
d8248c185a92b9318d70a71804ebca51553f23ed

SHA256
1f44bd12254ee5f6bb61ea433d76ab8e00a6f1d8c33e3a9e4abcaba508e1fefe

SHA512
63679de0e5bafc340ba3d739622f80d4195e65c1631f2e525ea1696a8d6ae3e4f19365e6083ae4bd45cf36796416cce53c650aeaa35d9ff9f85c45f56b27194d

Download Submit
memory/2560-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2684-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2684-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2684-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2684-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2684-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2684-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3016-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3016-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3016-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3016-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3016-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads