tofsee | e52c20e0297216d87d9920eb23d3a2096ba04fcaaa923d28dc4263ae0ddbe5bb

Analysis

max time kernel
148s
max time network
119s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 20:17

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General

Target

2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe
Size

12.8MB
MD5

1a136e835c3009b4e91d15512d298be6
SHA1

fe88c1ff07a6445f2e1a34f02716fe43ef3b38ad
SHA256

e52c20e0297216d87d9920eb23d3a2096ba04fcaaa923d28dc4263ae0ddbe5bb
SHA512

e2fc3e2ad8f71c0a9febbfd93511c42b6585825f33648f90767415af978233fd0ea2d0c040186d73053031a13886666128fa67ede7ea048284c3ed4a3f8452b1
SSDEEP

24576:I6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ:VWdLQk

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\cdivtyzq = "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
3024	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\cdivtyzq\ImagePath = "C:\\Windows\\SysWOW64\\cdivtyzq\\joytnzwy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2588	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2424	joytnzwy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2424 set thread context of 2588	2424	joytnzwy.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1908	sc.exe
1676	sc.exe
2508	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	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	joytnzwy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2452	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	30
PID 3052 wrote to memory of 2452	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	30
PID 3052 wrote to memory of 2452	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	30
PID 3052 wrote to memory of 2452	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	30
PID 3052 wrote to memory of 2544	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	32
PID 3052 wrote to memory of 2544	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	32
PID 3052 wrote to memory of 2544	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	32
PID 3052 wrote to memory of 2544	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	32
PID 3052 wrote to memory of 1908	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	34
PID 3052 wrote to memory of 1908	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	34
PID 3052 wrote to memory of 1908	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	34
PID 3052 wrote to memory of 1908	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	34
PID 3052 wrote to memory of 1676	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	36
PID 3052 wrote to memory of 1676	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	36
PID 3052 wrote to memory of 1676	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	36
PID 3052 wrote to memory of 1676	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	36
PID 3052 wrote to memory of 2508	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	38
PID 3052 wrote to memory of 2508	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	38
PID 3052 wrote to memory of 2508	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	38
PID 3052 wrote to memory of 2508	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	38
PID 2424 wrote to memory of 2588	2424	joytnzwy.exe	41
PID 2424 wrote to memory of 2588	2424	joytnzwy.exe	41
PID 2424 wrote to memory of 2588	2424	joytnzwy.exe	41
PID 2424 wrote to memory of 2588	2424	joytnzwy.exe	41
PID 2424 wrote to memory of 2588	2424	joytnzwy.exe	41
PID 2424 wrote to memory of 2588	2424	joytnzwy.exe	41
PID 3052 wrote to memory of 3024	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	42
PID 3052 wrote to memory of 3024	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	42
PID 3052 wrote to memory of 3024	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	42
PID 3052 wrote to memory of 3024	3052	2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cdivtyzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\joytnzwy.exe" C:\Windows\SysWOW64\cdivtyzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2544
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cdivtyzq binPath= "C:\Windows\SysWOW64\cdivtyzq\joytnzwy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cdivtyzq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cdivtyzq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2508
- 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:3024

C:\Windows\SysWOW64\cdivtyzq\joytnzwy.exe
C:\Windows\SysWOW64\cdivtyzq\joytnzwy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a136e835c3009b4e91d15512d298be6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2424
- 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:2588

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\joytnzwy.exe

Filesize
12.9MB

MD5
ce51de01c94a639d9facef7e2785d5ca

SHA1
4a4c2a949db600e03b32641f9f20e6a2543c75f8

SHA256
cac1217b62e3d188c508d201e2a94a6a3a798b142d243e7adc4fbc624288c7ee

SHA512
787e13e139d1399690bb2c08e706ed6ef14f1f3d00ff916937710c62030ab85ebdd0069b1396f1f478dd059f39b95a418ade1378c5c980583aa2aaa5f036113a

Download Submit
memory/2424-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2588-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3052-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/3052-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3052-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3052-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3052-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads