tofsee | beaa88ae783904a89f607a66a75b7a745be7c7d6a631f75c88da18425d0ee411

General

Target

2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe
Size

11.4MB
MD5

3de725da8507d50f15f93ef660eb5814
SHA1

a39a126f2fdeccb761ccdf235e0da955abe2c3e4
SHA256

beaa88ae783904a89f607a66a75b7a745be7c7d6a631f75c88da18425d0ee411
SHA512

4184f19579d62b5b278e46621102f62492b9c28dadd2cbd2762bbc661eb5729ebd1631b2cd0ab7baee85e0c5f7df2cb28a54619ca0fe8a9a1072c25c196054b6
SSDEEP

3072:tUbMNIxnynf6ZmHexBK1DQKgrUNjuRCCH+AtUTRM/phZl+H81CCCCCCCCCCCCCCQ:OAN6ynf6tx1ruuRFeAtoRMD6

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
3252	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-1-5-21-83325578-304917428-1200496059-1000\Control Panel\International\Geo\Nation	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe

Executes dropped EXE 1 IoCs

pid	Process
2364	tyidxjgi.exe

Launches sc.exe 3 IoCs

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

pid	Process
2768	sc.exe
456	sc.exe
2992	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
1612	1684	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	2025-03-30_3de725da8507d50f15f93ef660eb5814_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
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 1684 wrote to memory of 4144	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	105
PID 1684 wrote to memory of 4144	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	105
PID 1684 wrote to memory of 4144	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	105
PID 1684 wrote to memory of 4100	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	107
PID 1684 wrote to memory of 4100	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	107
PID 1684 wrote to memory of 4100	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	107
PID 1684 wrote to memory of 456	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	109
PID 1684 wrote to memory of 456	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	109
PID 1684 wrote to memory of 456	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	109
PID 1684 wrote to memory of 2992	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	111
PID 1684 wrote to memory of 2992	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	111
PID 1684 wrote to memory of 2992	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	111
PID 1684 wrote to memory of 2768	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	113
PID 1684 wrote to memory of 2768	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	113
PID 1684 wrote to memory of 2768	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	113
PID 1684 wrote to memory of 3252	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	116
PID 1684 wrote to memory of 3252	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	116
PID 1684 wrote to memory of 3252	1684	2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe	116

C:\Users\Admin\AppData\Local\Temp\2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fhbftmiz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tyidxjgi.exe" C:\Windows\SysWOW64\fhbftmiz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fhbftmiz binPath= "C:\Windows\SysWOW64\fhbftmiz\tyidxjgi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fhbftmiz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fhbftmiz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- 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:3252
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 800
  2⤵
  - Program crash
  PID:1612

C:\Windows\SysWOW64\fhbftmiz\tyidxjgi.exe
C:\Windows\SysWOW64\fhbftmiz\tyidxjgi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_3de725da8507d50f15f93ef660eb5814_black-basta_luca-stealer.exe"
1⤵
- Executes dropped EXE
PID:2364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1684 -ip 1684
1⤵
PID:2300

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\tyidxjgi.exe

Filesize
14.1MB

MD5
ae843281e8067eb5c45c3049bfefdbb6

SHA1
c038a019fffe656344de7972ec7437264ccb0d3e

SHA256
e138cad45f29f41173c443259c8bce56e4fd8ab7cedbf84750f493cc92046510

SHA512
7b335acf3ea7383e17301bd799d18bd4bf2ca5eb8eada0bacd3965f3e027dfdc1bbc8f260f158f71032ce2f04764994d8b0a0e79391fff75766eb339d5ab3a13

Download Submit
memory/1684-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/1684-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1684-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1684-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1684-7-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1684-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads