tofsee | b59aa4374a432455ceb42acd312ca1286148d06249b170cb7b8368d5b972d1a4

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/01/2025, 18:34

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General

Target

2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe
Size

11.4MB
MD5

5c6ae23b64fb57a3ebe7ecda833515a2
SHA1

6256587cfd31f1be773738ad6a4479f5e5a0917b
SHA256

b59aa4374a432455ceb42acd312ca1286148d06249b170cb7b8368d5b972d1a4
SHA512

1a26478d0b08a3b52247b1e24bbdf052ea7bf7e0e4e122f3f42fe93f335501b72942e88ad186901ca3cdc17d832265a6751b509baec0643be8f8fd5fdf345972
SSDEEP

24576:l6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQd:kWdLQkH

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\kotnvngh = "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
2816	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\kotnvngh\ImagePath = "C:\\Windows\\SysWOW64\\kotnvngh\\jiwymjkc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2720	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	jiwymjkc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2720	2772	jiwymjkc.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1124	sc.exe
2196	sc.exe
2712	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

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	svchost.exe
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	jiwymjkc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 1628	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	30
PID 2504 wrote to memory of 1628	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	30
PID 2504 wrote to memory of 1628	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	30
PID 2504 wrote to memory of 1628	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	30
PID 2504 wrote to memory of 2240	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	32
PID 2504 wrote to memory of 2240	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	32
PID 2504 wrote to memory of 2240	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	32
PID 2504 wrote to memory of 2240	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	32
PID 2504 wrote to memory of 1124	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	34
PID 2504 wrote to memory of 1124	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	34
PID 2504 wrote to memory of 1124	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	34
PID 2504 wrote to memory of 1124	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	34
PID 2504 wrote to memory of 2196	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	36
PID 2504 wrote to memory of 2196	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	36
PID 2504 wrote to memory of 2196	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	36
PID 2504 wrote to memory of 2196	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	36
PID 2504 wrote to memory of 2712	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	38
PID 2504 wrote to memory of 2712	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	38
PID 2504 wrote to memory of 2712	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	38
PID 2504 wrote to memory of 2712	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	38
PID 2772 wrote to memory of 2720	2772	jiwymjkc.exe	41
PID 2772 wrote to memory of 2720	2772	jiwymjkc.exe	41
PID 2772 wrote to memory of 2720	2772	jiwymjkc.exe	41
PID 2772 wrote to memory of 2720	2772	jiwymjkc.exe	41
PID 2772 wrote to memory of 2720	2772	jiwymjkc.exe	41
PID 2772 wrote to memory of 2720	2772	jiwymjkc.exe	41
PID 2504 wrote to memory of 2816	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	42
PID 2504 wrote to memory of 2816	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	42
PID 2504 wrote to memory of 2816	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	42
PID 2504 wrote to memory of 2816	2504	2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kotnvngh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jiwymjkc.exe" C:\Windows\SysWOW64\kotnvngh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kotnvngh binPath= "C:\Windows\SysWOW64\kotnvngh\jiwymjkc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1124
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kotnvngh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kotnvngh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- 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:2816

C:\Windows\SysWOW64\kotnvngh\jiwymjkc.exe
C:\Windows\SysWOW64\kotnvngh\jiwymjkc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c6ae23b64fb57a3ebe7ecda833515a2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2720

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\jiwymjkc.exe

Filesize
12.4MB

MD5
603857c091d26a7d9c0fe6b07552569f

SHA1
d722a1675d2ee064ab0cd688fde89c7778f24df3

SHA256
eebc4cb1312b99350a610af68a0692108e5c397e612e4b87f6f95f13956e35f5

SHA512
976347d93b7baf006aecb60ddb2fe232453bd1572ebeaa42dcc4e17c6f2b6c95a7c0c6a1b5c1782516f8be412aef6220001f8ea2674b2098c34240bf854ac2c1

Download Submit
memory/2504-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2504-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2504-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2504-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2504-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2504-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2720-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads