tofsee | ebb8a9eab301ab50f19221fabf2a6433a1c8b762e621f9771d8a083c182ffd4e

General

Target

2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe
Size

14.2MB
MD5

5b0fcf045ab97e45b05b4f876c34bf11
SHA1

2910468ed6f64dec43cfab64213720dcfbffce77
SHA256

ebb8a9eab301ab50f19221fabf2a6433a1c8b762e621f9771d8a083c182ffd4e
SHA512

8a7f98a79b960928fcac1f721a30bdb1d5a8f56f0522dd4214896658d2aca5e03c068736f9b06c2b2690c58a5830a4a001fa1876b7c6ea1b8e8a57023346e272
SSDEEP

3072:ZUbMNIxnynf6ZmHexBK1DQKgrUNjuRCCH+AtUTRM/phZl+H81CCCCCCCCCCCCCCT:SAN6ynf6tx1ruuRFeAtoRMDx

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
3492	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-1-5-21-446031748-3036493239-2009529691-1000\Control Panel\International\Geo\Nation	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe

Executes dropped EXE 1 IoCs

pid	Process
2044	inxsmyvx.exe

Launches sc.exe 3 IoCs

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

pid	Process
1900	sc.exe
1316	sc.exe
1268	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
3780	5508	WerFault.exe	85

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	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_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 5508 wrote to memory of 5348	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	104
PID 5508 wrote to memory of 5348	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	104
PID 5508 wrote to memory of 5348	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	104
PID 5508 wrote to memory of 3580	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	106
PID 5508 wrote to memory of 3580	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	106
PID 5508 wrote to memory of 3580	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	106
PID 5508 wrote to memory of 1316	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	108
PID 5508 wrote to memory of 1316	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	108
PID 5508 wrote to memory of 1316	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	108
PID 5508 wrote to memory of 1268	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	110
PID 5508 wrote to memory of 1268	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	110
PID 5508 wrote to memory of 1268	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	110
PID 5508 wrote to memory of 1900	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	112
PID 5508 wrote to memory of 1900	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	112
PID 5508 wrote to memory of 1900	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	112
PID 5508 wrote to memory of 3492	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	115
PID 5508 wrote to memory of 3492	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	115
PID 5508 wrote to memory of 3492	5508	2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe	115

C:\Users\Admin\AppData\Local\Temp\2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qukumpmk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5348
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\inxsmyvx.exe" C:\Windows\SysWOW64\qukumpmk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qukumpmk binPath= "C:\Windows\SysWOW64\qukumpmk\inxsmyvx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qukumpmk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1268
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qukumpmk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1900
- 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:3492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5508 -s 1224
  2⤵
  - Program crash
  PID:3780

C:\Windows\SysWOW64\qukumpmk\inxsmyvx.exe
C:\Windows\SysWOW64\qukumpmk\inxsmyvx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_5b0fcf045ab97e45b05b4f876c34bf11_black-basta_luca-stealer.exe"
1⤵
- Executes dropped EXE
PID:2044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5508 -ip 5508
1⤵
PID:5776

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\inxsmyvx.exe

Filesize
11.1MB

MD5
1025b81478fb1f0bfd05590db44f6bf0

SHA1
d6dc411ea22575a3950d8f672f6142b846e9d6d2

SHA256
cb72b812e47583156e5f7adb9f2bad116dac108fd3350213a1e9280ac2393cc8

SHA512
2d9ee53c88219edab5e22c60f8a9160e0a4ff26cc3a586860b08fc27a4107da8f7481e9b518b4b507a09bec2e92e1717b33f6253646cc0e8ee50c9f6caea6cf5

Download Submit
memory/5508-2-0x0000000000460000-0x0000000000473000-memory.dmp

Filesize
76KB

Download
memory/5508-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/5508-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5508-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5508-8-0x0000000000460000-0x0000000000473000-memory.dmp

Filesize
76KB

Download
memory/5508-7-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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