tofsee | 5c6e2601359a3f22947a7e94f63aa0d6c0408f069f3846f11a7efd6889642d35

Analysis

max time kernel
146s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 07:02

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General

Target

2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe
Size

12.8MB
MD5

9d5863a9ae43e0ca1a631bce9f0f8abc
SHA1

d068e742cd0a0b717ff6ee23b09b75a5730c0947
SHA256

5c6e2601359a3f22947a7e94f63aa0d6c0408f069f3846f11a7efd6889642d35
SHA512

9cc601348648b40ce12cc5166b61eca0bddfe898792b9ce0fc9f487be7f2d040b0a95a3d3e1bdf3b94c30b909c4f82ad02db121079303cc1850dcf856e958cdb
SSDEEP

24576:4EfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZv:1fot

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\tdksbldk = "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
2640	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\tdksbldk\ImagePath = "C:\\Windows\\SysWOW64\\tdksbldk\\duqxonrv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2808	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	duqxonrv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 2808	2876	duqxonrv.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2836	sc.exe
2760	sc.exe
2648	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	sc.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	duqxonrv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 2704	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	30
PID 1664 wrote to memory of 2704	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	30
PID 1664 wrote to memory of 2704	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	30
PID 1664 wrote to memory of 2704	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	30
PID 1664 wrote to memory of 2380	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	32
PID 1664 wrote to memory of 2380	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	32
PID 1664 wrote to memory of 2380	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	32
PID 1664 wrote to memory of 2380	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	32
PID 1664 wrote to memory of 2836	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	34
PID 1664 wrote to memory of 2836	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	34
PID 1664 wrote to memory of 2836	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	34
PID 1664 wrote to memory of 2836	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	34
PID 1664 wrote to memory of 2760	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	36
PID 1664 wrote to memory of 2760	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	36
PID 1664 wrote to memory of 2760	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	36
PID 1664 wrote to memory of 2760	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	36
PID 1664 wrote to memory of 2648	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	38
PID 1664 wrote to memory of 2648	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	38
PID 1664 wrote to memory of 2648	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	38
PID 1664 wrote to memory of 2648	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	38
PID 1664 wrote to memory of 2640	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	41
PID 1664 wrote to memory of 2640	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	41
PID 1664 wrote to memory of 2640	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	41
PID 1664 wrote to memory of 2640	1664	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	41
PID 2876 wrote to memory of 2808	2876	duqxonrv.exe	43
PID 2876 wrote to memory of 2808	2876	duqxonrv.exe	43
PID 2876 wrote to memory of 2808	2876	duqxonrv.exe	43
PID 2876 wrote to memory of 2808	2876	duqxonrv.exe	43
PID 2876 wrote to memory of 2808	2876	duqxonrv.exe	43
PID 2876 wrote to memory of 2808	2876	duqxonrv.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tdksbldk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\duqxonrv.exe" C:\Windows\SysWOW64\tdksbldk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tdksbldk binPath= "C:\Windows\SysWOW64\tdksbldk\duqxonrv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tdksbldk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tdksbldk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2648
- 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:2640

C:\Windows\SysWOW64\tdksbldk\duqxonrv.exe
C:\Windows\SysWOW64\tdksbldk\duqxonrv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- 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:2808

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\duqxonrv.exe

Filesize
14.3MB

MD5
cfd829e09d5d877d26942e5054b33d41

SHA1
61c3ae861558d9600b5aee57e300533c6788fe55

SHA256
cb0f221b362330dafca1d2b18413aa98b0c5b03dc5a1b831319365792fc757d7

SHA512
bc3a2b1a60aacb31ed5e01280cea6c02eed410804adfac5f22ba5b28c71e45ee1510365cb5d5a07cd35b95c15a86f12383ec5f4baed9a1b35241bce1652a1798

Download Submit
memory/1664-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1664-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1664-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1664-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1664-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1664-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2808-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2808-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2808-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2808-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2876-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads