tofsee | db56666942629eda48c83e4f9158d5954533933c0a67d73675793ee23d92f3e2

General

Target

2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe
Size

10.4MB
MD5

fb908e35669f513de632ee64cc35b7af
SHA1

add8720a302aaef17043a4ac3695da478195b4b9
SHA256

db56666942629eda48c83e4f9158d5954533933c0a67d73675793ee23d92f3e2
SHA512

d278a8b79ab5ddfc5209b31e8d7e9790034b3f682c914d23f1153cd7fc7cfdaaa34e5d1ec803fa557f1e12e395feefb861046d06bd4fb9cbe76c9ff2b82e227b
SSDEEP

3072:JZnbTHQC2mC+vdVcQuHAGSr9viHWhPxO796t6B7Aw5S2FxmEBVrVrVrVrVrVrVrG:bnJjcngGSrlqFp6kCyxTO

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
4064	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-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe

Executes dropped EXE 1 IoCs

pid	Process
2480	qvfaugdf.exe

Launches sc.exe 3 IoCs

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

pid	Process
2780	sc.exe
2016	sc.exe
1032	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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2160	5768	WerFault.exe	87

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 5768 wrote to memory of 4492	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	108
PID 5768 wrote to memory of 4492	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	108
PID 5768 wrote to memory of 4492	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	108
PID 5768 wrote to memory of 3056	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	110
PID 5768 wrote to memory of 3056	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	110
PID 5768 wrote to memory of 3056	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	110
PID 5768 wrote to memory of 2780	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	112
PID 5768 wrote to memory of 2780	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	112
PID 5768 wrote to memory of 2780	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	112
PID 5768 wrote to memory of 2016	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	114
PID 5768 wrote to memory of 2016	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	114
PID 5768 wrote to memory of 2016	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	114
PID 5768 wrote to memory of 1032	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	116
PID 5768 wrote to memory of 1032	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	116
PID 5768 wrote to memory of 1032	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	116
PID 5768 wrote to memory of 4064	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	119
PID 5768 wrote to memory of 4064	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	119
PID 5768 wrote to memory of 4064	5768	2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe	119

C:\Users\Admin\AppData\Local\Temp\2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vmhlxcwp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qvfaugdf.exe" C:\Windows\SysWOW64\vmhlxcwp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vmhlxcwp binPath= "C:\Windows\SysWOW64\vmhlxcwp\qvfaugdf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_fb908e35669f513de632ee64cc35b7af_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:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vmhlxcwp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vmhlxcwp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1032
- 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:4064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5768 -s 1176
  2⤵
  - Program crash
  PID:2160

C:\Windows\SysWOW64\vmhlxcwp\qvfaugdf.exe
C:\Windows\SysWOW64\vmhlxcwp\qvfaugdf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_fb908e35669f513de632ee64cc35b7af_black-basta_luca-stealer_smoke-loader.exe"
1⤵
- Executes dropped EXE
PID:2480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 5768 -ip 5768
1⤵
PID:3964

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\qvfaugdf.exe

Filesize
12.1MB

MD5
854edc3820b2e642478e97fbd3cce6c4

SHA1
9891f1efd5e4ea462f3bf1c5acaf4c942016edfe

SHA256
3c6fc234ff377d7d5f5366b4d274baaccfa955cd95ff891414b7401d1263b86c

SHA512
fdc7441ed5470596250338e60e6b863224a6ed7f75ef3451c8ed5379b87ded6bebc1ffbf92bc72b821434daac2163e1a967f8493364c9194c941545020205942

Download Submit
memory/5768-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/5768-2-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/5768-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5768-6-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/5768-8-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/5768-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5768-9-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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