tofsee | 2b81c5946f5c47a09703ba433305f5df54730c29033fe988beca31655d7119ef

General

Target

2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe
Size

14.9MB
MD5

b0f09514c99964765ca02524215f8315
SHA1

681adbf30ab864d06b14d1f8690c4a55875c1f0e
SHA256

2b81c5946f5c47a09703ba433305f5df54730c29033fe988beca31655d7119ef
SHA512

5609396f51c1ded618a670cb061696db72514abec59301138f86b4a8fbc6c548aaf8172bddd50ac8f870cfa1b930ce54dd318cbeaaccc3347a8323e3c2494c50
SSDEEP

393216:EXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
53	2160	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2004	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\xsqnrjsq\ImagePath = "C:\\Windows\\SysWOW64\\xsqnrjsq\\wnvtdyft.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-1-5-21-1290774215-692483676-1419523182-1000\Control Panel\International\Geo\Nation	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe

Deletes itself 1 IoCs

pid	Process
524	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
916	wnvtdyft.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 916 set thread context of 524	916	wnvtdyft.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3800	sc.exe
4356	sc.exe
3524	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 10 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wnvtdyft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_b0f09514c99964765ca02524215f8315_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	sc.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1412	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3248 wrote to memory of 3628	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	89
PID 3248 wrote to memory of 3628	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	89
PID 3248 wrote to memory of 3628	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	89
PID 3248 wrote to memory of 3964	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	91
PID 3248 wrote to memory of 3964	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	91
PID 3248 wrote to memory of 3964	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	91
PID 3248 wrote to memory of 3800	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	93
PID 3248 wrote to memory of 3800	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	93
PID 3248 wrote to memory of 3800	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	93
PID 3248 wrote to memory of 4356	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	95
PID 3248 wrote to memory of 4356	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	95
PID 3248 wrote to memory of 4356	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	95
PID 3248 wrote to memory of 3524	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	97
PID 3248 wrote to memory of 3524	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	97
PID 3248 wrote to memory of 3524	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	97
PID 916 wrote to memory of 524	916	wnvtdyft.exe	100
PID 916 wrote to memory of 524	916	wnvtdyft.exe	100
PID 916 wrote to memory of 524	916	wnvtdyft.exe	100
PID 916 wrote to memory of 524	916	wnvtdyft.exe	100
PID 916 wrote to memory of 524	916	wnvtdyft.exe	100
PID 3248 wrote to memory of 2004	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	101
PID 3248 wrote to memory of 2004	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	101
PID 3248 wrote to memory of 2004	3248	2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3248
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xsqnrjsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wnvtdyft.exe" C:\Windows\SysWOW64\xsqnrjsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xsqnrjsq binPath= "C:\Windows\SysWOW64\xsqnrjsq\wnvtdyft.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xsqnrjsq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xsqnrjsq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3524
- 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:2004

C:\Windows\SysWOW64\xsqnrjsq\wnvtdyft.exe
C:\Windows\SysWOW64\xsqnrjsq\wnvtdyft.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_b0f09514c99964765ca02524215f8315_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:916
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:524

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7OEZCQ0ZBNzItQTg1NC00MzBCLTlERkYtNkQ1MTJBNTdCODQ3fSIgdXNlcmlkPSJ7NjYzMkUzRDAtOUVEMC00Rjg4LThBNkMtODA2NDY4MzNFQjE3fSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7OTg1OTgyNUQtNjA5NS00Mjk5LUJBQjQtMDU3Nzk0NTYxRDE1fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDQ5MjgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxNzQzMjM4OTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjI0MjgzODczIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1412

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
11.2MB

MD5
aaaf36b3e25857800948318423041b4a

SHA1
8c042bbe10f0cea479f96ed76e1cdbc9dab0db46

SHA256
9e11bb39bfddcc5724c8e110a9500db71c2b6d8cc44ab7127e4bc3bf0d32392b

SHA512
5f125f15fefa9b2dc2a325a567ee3df00c6606fcd4497d9e26f718c032bd11f029f2b8f5f85715584efeb0d8d4b7acd0e80abc7d0ae51accdaf161955e1c8526

Download Submit
memory/524-11-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/524-22-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/524-21-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/524-20-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/524-16-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/916-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/916-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/916-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/916-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3248-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3248-18-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/3248-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3248-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/3248-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3248-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads