tofsee | df903842e22291df470826cae9a31ff44e2293ebd012c28a682f6ebfc214c1cd

General

Target

2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe
Size

14.5MB
MD5

f178952f1644818d0c1e3e334b749c46
SHA1

b650ad19d57033a81b344177935f447f08ab5bfe
SHA256

df903842e22291df470826cae9a31ff44e2293ebd012c28a682f6ebfc214c1cd
SHA512

3001563ad672b8c15304772002412556ba1644f0cc0fe1a983f14f4a213e90245e84fe261b1ad12c1be2c8674cf34bac92494226c7ef0d25290eee7d6079b149
SSDEEP

12288:8Vbj7zJB99tzBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBJ:8JzXd

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\nhtbvcke = "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
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2520 netsh.exe

pid	process
2520	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\nhtbvcke\ImagePath = "C:\\Windows\\SysWOW64\\nhtbvcke\\ytxpfqsq.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3048 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ytxpfqsq.exe

pid process

2636 ytxpfqsq.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ytxpfqsq.exe

description pid process target process

PID 2636 set thread context of 3048 2636 ytxpfqsq.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2776 sc.exe
2300 sc.exe
2660 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3048	svchost.exe

pid	process
2636	ytxpfqsq.exe

description	pid	process	target process
PID 2636 set thread context of 3048	2636	ytxpfqsq.exe	svchost.exe

pid	process
2776	sc.exe
2300	sc.exe
2660	sc.exe

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

Processes:

netsh.exe

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

Processes:

2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.execmd.execmd.exesc.exesvchost.exesc.exesc.exenetsh.exeytxpfqsq.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.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	svchost.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	ytxpfqsq.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exeytxpfqsq.exe

description	pid	process	target process
PID 2616 wrote to memory of 2716	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	cmd.exe
PID 2616 wrote to memory of 2716	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	cmd.exe
PID 2616 wrote to memory of 2716	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	cmd.exe
PID 2616 wrote to memory of 2716	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	cmd.exe
PID 2616 wrote to memory of 2792	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	cmd.exe
PID 2616 wrote to memory of 2792	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	cmd.exe
PID 2616 wrote to memory of 2792	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	cmd.exe
PID 2616 wrote to memory of 2792	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	cmd.exe
PID 2616 wrote to memory of 2776	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2776	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2776	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2776	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2300	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2300	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2300	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2300	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2660	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2660	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2660	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2660	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	sc.exe
PID 2616 wrote to memory of 2520	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	netsh.exe
PID 2616 wrote to memory of 2520	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	netsh.exe
PID 2616 wrote to memory of 2520	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	netsh.exe
PID 2616 wrote to memory of 2520	2616	2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe	netsh.exe
PID 2636 wrote to memory of 3048	2636	ytxpfqsq.exe	svchost.exe
PID 2636 wrote to memory of 3048	2636	ytxpfqsq.exe	svchost.exe
PID 2636 wrote to memory of 3048	2636	ytxpfqsq.exe	svchost.exe
PID 2636 wrote to memory of 3048	2636	ytxpfqsq.exe	svchost.exe
PID 2636 wrote to memory of 3048	2636	ytxpfqsq.exe	svchost.exe
PID 2636 wrote to memory of 3048	2636	ytxpfqsq.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nhtbvcke\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ytxpfqsq.exe" C:\Windows\SysWOW64\nhtbvcke\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nhtbvcke binPath= "C:\Windows\SysWOW64\nhtbvcke\ytxpfqsq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nhtbvcke "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nhtbvcke
  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:2520

C:\Windows\SysWOW64\nhtbvcke\ytxpfqsq.exe
C:\Windows\SysWOW64\nhtbvcke\ytxpfqsq.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-09-21_f178952f1644818d0c1e3e334b749c46_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- 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:3048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.2MB

MD5
95b009bb0c7d97dc75e4a76fd6772b7d

SHA1
c9cea34af4f37d26a182b5357929483b46bed843

SHA256
f2e7fb26d6c116a615e59264958c75aa2e1d2644aacaf9ecc31b21ba125bda69

SHA512
043e56994f0b5e995070194d74e8aeb6062594f2bf966cfe20880ae929fb254ac3b5381cd883885ef80ba709483403f6760dd596029d19f3be5c5c0e05c4095f

Download Submit
memory/2616-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2616-3-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2616-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2616-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2616-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2636-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3048-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3048-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3048-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3048-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3048-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads