tofsee | a70ba081e98ed55c64ec32bd490e1a9c2dc7b3c6c79a981345255afba7361c93

General

Target

2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe
Size

13.4MB
MD5

5bc6501dcfa7c41b3c5541b68f54d94c
SHA1

bb6f9e430e39820f33881920f144a4cc56171ee2
SHA256

a70ba081e98ed55c64ec32bd490e1a9c2dc7b3c6c79a981345255afba7361c93
SHA512

3dc0a4958c700fd24d261ca0a00aef1eb922ce7512b87d9cd68e6b7d45f2bbf73d4bf8c8f1ccaf6a6923d4a7de5aaca1cc469bdf3856a32889c0fff491f460c4
SSDEEP

393216:kXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx:m

Score

10^/10

tofsee defense_evasion discovery 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
Tofsee family
tofsee
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
2244	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\cdxisozr\ImagePath = "C:\\Windows\\SysWOW64\\cdxisozr\\vhgufpxr.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe

Deletes itself 1 IoCs

pid	Process
2804	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3684	vhgufpxr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3684 set thread context of 2804	3684	vhgufpxr.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
2716	sc.exe
4800	sc.exe
1536	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vhgufpxr.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	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4168 wrote to memory of 4620	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	86
PID 4168 wrote to memory of 4620	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	86
PID 4168 wrote to memory of 4620	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	86
PID 4168 wrote to memory of 4380	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	88
PID 4168 wrote to memory of 4380	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	88
PID 4168 wrote to memory of 4380	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	88
PID 4168 wrote to memory of 2716	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	90
PID 4168 wrote to memory of 2716	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	90
PID 4168 wrote to memory of 2716	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	90
PID 4168 wrote to memory of 4800	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	92
PID 4168 wrote to memory of 4800	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	92
PID 4168 wrote to memory of 4800	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	92
PID 4168 wrote to memory of 1536	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	94
PID 4168 wrote to memory of 1536	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	94
PID 4168 wrote to memory of 1536	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	94
PID 4168 wrote to memory of 2244	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	97
PID 4168 wrote to memory of 2244	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	97
PID 4168 wrote to memory of 2244	4168	2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe	97
PID 3684 wrote to memory of 2804	3684	vhgufpxr.exe	99
PID 3684 wrote to memory of 2804	3684	vhgufpxr.exe	99
PID 3684 wrote to memory of 2804	3684	vhgufpxr.exe	99
PID 3684 wrote to memory of 2804	3684	vhgufpxr.exe	99
PID 3684 wrote to memory of 2804	3684	vhgufpxr.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cdxisozr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vhgufpxr.exe" C:\Windows\SysWOW64\cdxisozr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cdxisozr binPath= "C:\Windows\SysWOW64\cdxisozr\vhgufpxr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cdxisozr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cdxisozr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1536
- 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:2244

C:\Windows\SysWOW64\cdxisozr\vhgufpxr.exe
C:\Windows\SysWOW64\cdxisozr\vhgufpxr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_5bc6501dcfa7c41b3c5541b68f54d94c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3684
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2804

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\vhgufpxr.exe

Filesize
10.2MB

MD5
08b787dcf3529a31a4db4d260fda330e

SHA1
cb82ed1e843defe8baa2551a03a405d00f5d0e6d

SHA256
cb58bc1631fd5745a2f7e10ed60d9bfb848c516a620c19fbe5bf91e9b51b6499

SHA512
7251ccb4469a680f87abd9383bcff8a0f6ec7dc5613ceb8490a2e7d0b06e5bbcb96ddd623b573478a19bf76ca345d281c683e5473727f3e22427ed98e23c1bc6

Download Submit
memory/2804-14-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/2804-22-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/2804-21-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/2804-20-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/2804-17-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/3684-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3684-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3684-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3684-19-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4168-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4168-12-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/4168-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4168-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/4168-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4168-2-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads