tofsee | 6542df9290b0e3312e5c6d143461b5258901597514b7cb3aed1280c8271041eb

General

Target

2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe
Size

13.9MB
MD5

44060047c09b10a66899ce012387c5c3
SHA1

d7f0f95a1f168c74dcf2109e280d3da40af6f904
SHA256

6542df9290b0e3312e5c6d143461b5258901597514b7cb3aed1280c8271041eb
SHA512

d1258de502f4b38d3aee82ab8f978e9593e85f5b222ea05a9558fa1515b5e622daf08b8e936439c274a5c59242ec75c15df63f5d3580afcf56af31c8e73568ae
SSDEEP

3072:AZnbTHQC2mC+vdVcQuHAGSr9viHWhPxO796t6B7Aw5S2FxmEBVrVrVrVrVrVrVrb:UnJjcngGSrlqFp6kCyxTT

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
1984	netsh.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-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe

Executes dropped EXE 1 IoCs

pid	Process
3768	izvctswa.exe

Launches sc.exe 3 IoCs

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

pid	Process
2072	sc.exe
4836	sc.exe
4656	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 1 IoCs

pid	pid_target	Process	procid_target
2716	1780	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 7 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	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 5052	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	108
PID 1780 wrote to memory of 5052	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	108
PID 1780 wrote to memory of 5052	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	108
PID 1780 wrote to memory of 4532	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	110
PID 1780 wrote to memory of 4532	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	110
PID 1780 wrote to memory of 4532	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	110
PID 1780 wrote to memory of 2072	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	112
PID 1780 wrote to memory of 2072	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	112
PID 1780 wrote to memory of 2072	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	112
PID 1780 wrote to memory of 4836	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	114
PID 1780 wrote to memory of 4836	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	114
PID 1780 wrote to memory of 4836	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	114
PID 1780 wrote to memory of 4656	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	116
PID 1780 wrote to memory of 4656	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	116
PID 1780 wrote to memory of 4656	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	116
PID 1780 wrote to memory of 1984	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	119
PID 1780 wrote to memory of 1984	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	119
PID 1780 wrote to memory of 1984	1780	2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe	119

C:\Users\Admin\AppData\Local\Temp\2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qzlcopop\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\izvctswa.exe" C:\Windows\SysWOW64\qzlcopop\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qzlcopop binPath= "C:\Windows\SysWOW64\qzlcopop\izvctswa.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2072
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qzlcopop "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qzlcopop
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4656
- 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:1984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 1040
  2⤵
  - Program crash
  PID:2716

C:\Windows\SysWOW64\qzlcopop\izvctswa.exe
C:\Windows\SysWOW64\qzlcopop\izvctswa.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe"
1⤵
- Executes dropped EXE
PID:3768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1780 -ip 1780
1⤵
PID:1176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

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

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

1

T1562.004

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\izvctswa.exe

Filesize
14.9MB

MD5
166ab38f5b6ae0ebdb5caca18727218d

SHA1
cc5959116cc1403d3866b96728851336f12bfa1d

SHA256
d13bfb85f59f1c0165b1b27f59f999b376a0c1bd6cc07d2de00aa627f6b88b3c

SHA512
3bd3fec1bbe58d49d2e60358b4e99948802473afa60b4ad04bcb138d8c023cbbe9fd547374f13d3640e364de17f408e5b492bd1c2ed95c49eca5f26287d717c1

Download Submit
memory/1780-1-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download
memory/1780-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1780-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1780-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1780-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1780-7-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads