tofsee | 395942f0e30f8decdc6526df2831a56bd05b31f94460aa44915edab268b6b50b

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
01/02/2025, 11:36

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General

Target

2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe
Size

13.9MB
MD5

f982d788199c912ddcac30ffc0328afd
SHA1

954435532bdf44cd2eaac68aa0c18a5cf113fba5
SHA256

395942f0e30f8decdc6526df2831a56bd05b31f94460aa44915edab268b6b50b
SHA512

75b54f91dea775343cd66bc1ab996517522a8967aedcc0d5c7d2b1d7f6229aea1525f66bf0961227fc6dd1d0525ff01733ca4d30388ed90dfcb9cce85b2d23b5
SSDEEP

6144:nLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQV:MTYe+D2jFu+iZoUFhAzQ

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\kzlkheay = "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
2560	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\kzlkheay\ImagePath = "C:\\Windows\\SysWOW64\\kzlkheay\\gidjcpz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3056	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2544	gidjcpz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2544 set thread context of 3056	2544	gidjcpz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2796	sc.exe
2568	sc.exe
2660	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gidjcpz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2812	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	30
PID 2688 wrote to memory of 2812	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	30
PID 2688 wrote to memory of 2812	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	30
PID 2688 wrote to memory of 2812	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	30
PID 2688 wrote to memory of 2652	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	32
PID 2688 wrote to memory of 2652	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	32
PID 2688 wrote to memory of 2652	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	32
PID 2688 wrote to memory of 2652	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	32
PID 2688 wrote to memory of 2796	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	34
PID 2688 wrote to memory of 2796	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	34
PID 2688 wrote to memory of 2796	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	34
PID 2688 wrote to memory of 2796	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	34
PID 2688 wrote to memory of 2568	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	36
PID 2688 wrote to memory of 2568	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	36
PID 2688 wrote to memory of 2568	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	36
PID 2688 wrote to memory of 2568	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	36
PID 2688 wrote to memory of 2660	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	38
PID 2688 wrote to memory of 2660	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	38
PID 2688 wrote to memory of 2660	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	38
PID 2688 wrote to memory of 2660	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	38
PID 2688 wrote to memory of 2560	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	41
PID 2688 wrote to memory of 2560	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	41
PID 2688 wrote to memory of 2560	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	41
PID 2688 wrote to memory of 2560	2688	2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe	41
PID 2544 wrote to memory of 3056	2544	gidjcpz.exe	43
PID 2544 wrote to memory of 3056	2544	gidjcpz.exe	43
PID 2544 wrote to memory of 3056	2544	gidjcpz.exe	43
PID 2544 wrote to memory of 3056	2544	gidjcpz.exe	43
PID 2544 wrote to memory of 3056	2544	gidjcpz.exe	43
PID 2544 wrote to memory of 3056	2544	gidjcpz.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kzlkheay\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gidjcpz.exe" C:\Windows\SysWOW64\kzlkheay\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kzlkheay binPath= "C:\Windows\SysWOW64\kzlkheay\gidjcpz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kzlkheay "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2568
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kzlkheay
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- 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:2560

C:\Windows\SysWOW64\kzlkheay\gidjcpz.exe
C:\Windows\SysWOW64\kzlkheay\gidjcpz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_f982d788199c912ddcac30ffc0328afd_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2544
- 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:3056

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\gidjcpz.exe

Filesize
11.9MB

MD5
6ac36c1a1efafb14365e360f93998e38

SHA1
c1e1d2fb6013dff916b4948dafc9229571757caa

SHA256
619955fa52590a22e507607bb0f6f47ff0626000f73e7159b0a8916b70b43b22

SHA512
fb74588eb4623e27cc804a9f6746b0390b94104821b909de74920baa616e8584a88b3335de454a6cd8e3171f3e82f4aaa852dd6a0b9ab87fa31aaaec76d96a42

Download Submit
memory/2544-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2688-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2688-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2688-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2688-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/3056-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3056-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3056-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3056-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3056-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3056-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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