tofsee | e7913e2c847ac4473585f47cc1704415162535c27ea5b99795cc89142548c59c

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 11:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe
Size

11.9MB
MD5

5feeb78b75274e5678569bbc9ad05218
SHA1

0f7f76c3a85f5e4c6cffc2d9ac9161cea10b17b0
SHA256

e7913e2c847ac4473585f47cc1704415162535c27ea5b99795cc89142548c59c
SHA512

9576c7359ab39129046f73cd7c45e8350e7732c0ea964f1e629c17c6b5a20cd24982eb694e7e3a0e240149edef80f57b72601ddd7fb88f95ed84490d11752656
SSDEEP

3072:HLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/i:eOMdRQr7OB0ypmMXnl8XEPM3noSWOCV

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\pkeyzpen = "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
1888	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\pkeyzpen\ImagePath = "C:\\Windows\\SysWOW64\\pkeyzpen\\oaznyiqk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2344	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2040	oaznyiqk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 2344	2040	oaznyiqk.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2540	sc.exe
2972	sc.exe
2076	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	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	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	oaznyiqk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 1664	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	28
PID 2276 wrote to memory of 1664	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	28
PID 2276 wrote to memory of 1664	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	28
PID 2276 wrote to memory of 1664	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	28
PID 2276 wrote to memory of 2256	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	30
PID 2276 wrote to memory of 2256	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	30
PID 2276 wrote to memory of 2256	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	30
PID 2276 wrote to memory of 2256	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	30
PID 2276 wrote to memory of 2540	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	32
PID 2276 wrote to memory of 2540	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	32
PID 2276 wrote to memory of 2540	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	32
PID 2276 wrote to memory of 2540	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	32
PID 2276 wrote to memory of 2972	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	34
PID 2276 wrote to memory of 2972	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	34
PID 2276 wrote to memory of 2972	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	34
PID 2276 wrote to memory of 2972	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	34
PID 2276 wrote to memory of 2076	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	36
PID 2276 wrote to memory of 2076	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	36
PID 2276 wrote to memory of 2076	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	36
PID 2276 wrote to memory of 2076	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	36
PID 2276 wrote to memory of 1888	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	39
PID 2276 wrote to memory of 1888	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	39
PID 2276 wrote to memory of 1888	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	39
PID 2276 wrote to memory of 1888	2276	2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe	39
PID 2040 wrote to memory of 2344	2040	oaznyiqk.exe	41
PID 2040 wrote to memory of 2344	2040	oaznyiqk.exe	41
PID 2040 wrote to memory of 2344	2040	oaznyiqk.exe	41
PID 2040 wrote to memory of 2344	2040	oaznyiqk.exe	41
PID 2040 wrote to memory of 2344	2040	oaznyiqk.exe	41
PID 2040 wrote to memory of 2344	2040	oaznyiqk.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pkeyzpen\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oaznyiqk.exe" C:\Windows\SysWOW64\pkeyzpen\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pkeyzpen binPath= "C:\Windows\SysWOW64\pkeyzpen\oaznyiqk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pkeyzpen "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pkeyzpen
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2076
- 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:1888

C:\Windows\SysWOW64\pkeyzpen\oaznyiqk.exe
C:\Windows\SysWOW64\pkeyzpen\oaznyiqk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_5feeb78b75274e5678569bbc9ad05218_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2040
- 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:2344

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11.5MB

MD5
d0a25a41b028b175e44f9c822f8812ee

SHA1
5bfba41c437bb750a54968aecba15bf07819856c

SHA256
1ef50449ed3d1528da803639224e1549364796f9989808ecac752352383d8759

SHA512
0f08f59e36d4de8105311feb8ea479f255d439dab6f29915a2d94969c9403ba7bb2f58aab1e551b759239009e3f0c7b9591360f51badca9e621801edf4989cd2

Download Submit
memory/2040-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2276-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2276-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2276-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2276-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2276-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2276-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2344-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2344-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2344-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2344-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2344-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads