tofsee | 358a096fa1ecc2848fd30e8523d4fb59bcaef82290c1a2d7b38d2ad3e87a612c

General

Target

2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe
Size

13.0MB
MD5

d0083f94bfaa41baf0ac7ccc6b53eb52
SHA1

7e25b3de9bc7b99eb2b895b1251e4d9e99802cf6
SHA256

358a096fa1ecc2848fd30e8523d4fb59bcaef82290c1a2d7b38d2ad3e87a612c
SHA512

6fa0a3855af6cb414d1d8ce571dedf6cb191667e9d80b65fed83ef13f9d7882a911739e6d109e8e3d18510aaf94dec0689a4a446d1d0c359bd8c112766313a37
SSDEEP

24576:WpomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt/:aoo

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
2712	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\ngdbnrch\ImagePath = "C:\\Windows\\SysWOW64\\ngdbnrch\\evryposw.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe

Deletes itself 1 IoCs

pid	Process
4764	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3088	evryposw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3088 set thread context of 4764	3088	evryposw.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1696	sc.exe
624	sc.exe
4480	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 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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4704	2380	WerFault.exe	82
4728	3088	WerFault.exe	96

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	evryposw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 4708	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	86
PID 2380 wrote to memory of 4708	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	86
PID 2380 wrote to memory of 4708	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	86
PID 2380 wrote to memory of 3268	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	88
PID 2380 wrote to memory of 3268	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	88
PID 2380 wrote to memory of 3268	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	88
PID 2380 wrote to memory of 1696	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	90
PID 2380 wrote to memory of 1696	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	90
PID 2380 wrote to memory of 1696	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	90
PID 2380 wrote to memory of 624	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	92
PID 2380 wrote to memory of 624	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	92
PID 2380 wrote to memory of 624	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	92
PID 2380 wrote to memory of 4480	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	94
PID 2380 wrote to memory of 4480	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	94
PID 2380 wrote to memory of 4480	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	94
PID 2380 wrote to memory of 2712	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	97
PID 2380 wrote to memory of 2712	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	97
PID 2380 wrote to memory of 2712	2380	2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe	97
PID 3088 wrote to memory of 4764	3088	evryposw.exe	102
PID 3088 wrote to memory of 4764	3088	evryposw.exe	102
PID 3088 wrote to memory of 4764	3088	evryposw.exe	102
PID 3088 wrote to memory of 4764	3088	evryposw.exe	102
PID 3088 wrote to memory of 4764	3088	evryposw.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ngdbnrch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\evryposw.exe" C:\Windows\SysWOW64\ngdbnrch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3268
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ngdbnrch binPath= "C:\Windows\SysWOW64\ngdbnrch\evryposw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ngdbnrch "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ngdbnrch
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4480
- 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:2712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 1248
  2⤵
  - Program crash
  PID:4704

C:\Windows\SysWOW64\ngdbnrch\evryposw.exe
C:\Windows\SysWOW64\ngdbnrch\evryposw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_d0083f94bfaa41baf0ac7ccc6b53eb52_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 532
  2⤵
  - Program crash
  PID:4728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2380 -ip 2380
1⤵
PID:5100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3088 -ip 3088
1⤵
PID:1924

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
13.5MB

MD5
5902771d2cea8460388d23fbcac64799

SHA1
22a47f9a53b3e1cb5670eb06416b4b8523bc50bd

SHA256
21357848492562600821029f2e52e3b4670465097d6de080758a323b5014df7a

SHA512
78a222f3f26577b74aa012869d9717f14d54ab7575816d7e385eed525091f0f828bc66d01028b79812a95e421f7994ee51feebcb268ff5eb7ba2cb6bca082c4e

Download Submit
memory/2380-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2380-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2380-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2380-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/3088-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3088-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3088-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3088-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4764-14-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/4764-16-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/4764-17-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads