tofsee | 73f81f5867e6753b4b6c743844fc5e9c8e9c95c69da349b07d53a7d9abab7ffa

General

Target

2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe
Size

10.8MB
MD5

018575a39ffcc1b59d708cff951a1f62
SHA1

fbe47885a72c5a830f12446857f374ad64b7c8ec
SHA256

73f81f5867e6753b4b6c743844fc5e9c8e9c95c69da349b07d53a7d9abab7ffa
SHA512

39ce9e9bfc86960ed325ebdac526317bdf2b66f1103bbfa7d47fefda83e385413f673ae5110feade0a331c21397d2626c5a7bb32e37a1aa23f7a92f9f3cbaf6c
SSDEEP

49152:4zTT2kX2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2X2Xa:4zv2

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
3992	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-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe

Executes dropped EXE 1 IoCs

pid	Process
3580	qhdkbaei.exe

Launches sc.exe 3 IoCs

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

pid	Process
4320	sc.exe
4448	sc.exe
1740	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
6072	1532	WerFault.exe	84

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	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 208	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	104
PID 1532 wrote to memory of 208	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	104
PID 1532 wrote to memory of 208	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	104
PID 1532 wrote to memory of 3676	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	106
PID 1532 wrote to memory of 3676	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	106
PID 1532 wrote to memory of 3676	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	106
PID 1532 wrote to memory of 4320	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	108
PID 1532 wrote to memory of 4320	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	108
PID 1532 wrote to memory of 4320	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	108
PID 1532 wrote to memory of 4448	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	110
PID 1532 wrote to memory of 4448	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	110
PID 1532 wrote to memory of 4448	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	110
PID 1532 wrote to memory of 1740	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	112
PID 1532 wrote to memory of 1740	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	112
PID 1532 wrote to memory of 1740	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	112
PID 1532 wrote to memory of 3992	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	115
PID 1532 wrote to memory of 3992	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	115
PID 1532 wrote to memory of 3992	1532	2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe	115

C:\Users\Admin\AppData\Local\Temp\2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\inlxytaa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qhdkbaei.exe" C:\Windows\SysWOW64\inlxytaa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create inlxytaa binPath= "C:\Windows\SysWOW64\inlxytaa\qhdkbaei.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description inlxytaa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start inlxytaa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1740
- 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:3992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1532 -s 900
  2⤵
  - Program crash
  PID:6072

C:\Windows\SysWOW64\inlxytaa\qhdkbaei.exe
C:\Windows\SysWOW64\inlxytaa\qhdkbaei.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_018575a39ffcc1b59d708cff951a1f62_black-basta_luca-stealer.exe"
1⤵
- Executes dropped EXE
PID:3580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1532 -ip 1532
1⤵
PID:3820

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
13.2MB

MD5
c16dc61603833cb969e125920bec7e63

SHA1
8428f3d5e6de3868c9aaeb22f46aa68fbc36e172

SHA256
234bebbad88433a6352ef7c5fd57f6f29f21ba917a09800cc0bb551ca004c5ca

SHA512
58023fe7fb55ab007554a7e2f68fa1201dbe1c5db3f52eff9ae784a38455197558c20801050efde3ebe7d63d26172926f877f884930e5ca50fa97dad5b0ec76c

Download Submit
memory/1532-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/1532-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1532-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1532-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1532-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1532-7-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads