tofsee | e13dbafcfd8506784a4d05380e0d5becbfcbd3b0933009d584c9acfe3e1fece1

General

Target

2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe
Size

14.5MB
MD5

1220665f1aea031000e46b1aec1a5c44
SHA1

77df7ed1471b3845bb5e74a52a416ad058783f7e
SHA256

e13dbafcfd8506784a4d05380e0d5becbfcbd3b0933009d584c9acfe3e1fece1
SHA512

a5f8b5e5543d925c33d2d37334685e620bf75842740384f9e819d159c3a6d31a3df7e66463b8135bbddd88f00dfce2194145fa74d2e3685cd5625454a97fcccd
SSDEEP

3072:x5nbTHQC2mC+vdVWQhHPGyCsPiHMhPxO7rFI7NP6BfGrIHmll9uX4YRrVOVOVOVh:znJjWIvGyCYq/H2Ak5uXa

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
3268	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-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe

Executes dropped EXE 1 IoCs

pid	Process
3032	qhpnxszn.exe

Launches sc.exe 3 IoCs

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

pid	Process
5364	sc.exe
4992	sc.exe
1532	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
1492	2856	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	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_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 5428	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	103
PID 2856 wrote to memory of 5428	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	103
PID 2856 wrote to memory of 5428	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	103
PID 2856 wrote to memory of 1656	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	105
PID 2856 wrote to memory of 1656	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	105
PID 2856 wrote to memory of 1656	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	105
PID 2856 wrote to memory of 5364	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	107
PID 2856 wrote to memory of 5364	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	107
PID 2856 wrote to memory of 5364	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	107
PID 2856 wrote to memory of 4992	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	109
PID 2856 wrote to memory of 4992	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	109
PID 2856 wrote to memory of 4992	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	109
PID 2856 wrote to memory of 1532	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	111
PID 2856 wrote to memory of 1532	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	111
PID 2856 wrote to memory of 1532	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	111
PID 2856 wrote to memory of 3268	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	114
PID 2856 wrote to memory of 3268	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	114
PID 2856 wrote to memory of 3268	2856	2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe	114

C:\Users\Admin\AppData\Local\Temp\2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\merlgipj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qhpnxszn.exe" C:\Windows\SysWOW64\merlgipj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create merlgipj binPath= "C:\Windows\SysWOW64\merlgipj\qhpnxszn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5364
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description merlgipj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start merlgipj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1532
- 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:3268
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2856 -s 800
  2⤵
  - Program crash
  PID:1492

C:\Windows\SysWOW64\merlgipj\qhpnxszn.exe
C:\Windows\SysWOW64\merlgipj\qhpnxszn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_1220665f1aea031000e46b1aec1a5c44_black-basta_luca-stealer.exe"
1⤵
- Executes dropped EXE
PID:3032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2856 -ip 2856
1⤵
PID:1268

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\qhpnxszn.exe

Filesize
11.3MB

MD5
103fa1bd356d3edd890a27f5ffc2f733

SHA1
022c983457652d370d3981a48a084076e66f3c03

SHA256
98d8aa2ab251dc7fc78f6875c2c50890793979dede20c504907c6d82da57224b

SHA512
3afc13586b80def234f1aa691d76a0214f02a1ca786171829e7770ddad148ca634e107deecfe50673b59f2732be980cc55f08db1b6788c9abfbadc1d80925aea

Download Submit
memory/2856-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2856-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2856-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2856-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2856-7-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2856-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads