tofsee | 847259d4013f05c28589730fb8fb1e0191944c5a2fd76966c9115b7cb3ce1b73

Analysis

max time kernel
145s
max time network
131s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30/03/2025, 09:19

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General

Target

2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe
Size

13.6MB
MD5

43c01bc0cedee20faf232227603380fc
SHA1

10667a4f434d43bb081f9e16305174afd4ab21a7
SHA256

847259d4013f05c28589730fb8fb1e0191944c5a2fd76966c9115b7cb3ce1b73
SHA512

5c668405cfce9a2ddc87348b5293cc125da2478147d4e826a091d05f2450f3a1db11e5c90884e2178fc96a2720ad1a6499c15229819324e9383d0fcc83faae4d
SSDEEP

12288:NWaQslyPXVhHfUjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjN:0aQNlhHfw

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\iroynqpc = "0"	svchost.exe

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
2972	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\iroynqpc\ImagePath = "C:\\Windows\\SysWOW64\\iroynqpc\\ktnskjea.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2712	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2936	ktnskjea.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2936 set thread context of 2712	2936	ktnskjea.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2496	sc.exe
2688	sc.exe
2844	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

System Location Discovery: System Language Discovery 1 TTPs 9 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_43c01bc0cedee20faf232227603380fc_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	ktnskjea.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2056	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	29
PID 2604 wrote to memory of 2056	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	29
PID 2604 wrote to memory of 2056	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	29
PID 2604 wrote to memory of 2056	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	29
PID 2604 wrote to memory of 2772	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	31
PID 2604 wrote to memory of 2772	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	31
PID 2604 wrote to memory of 2772	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	31
PID 2604 wrote to memory of 2772	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	31
PID 2604 wrote to memory of 2496	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	33
PID 2604 wrote to memory of 2496	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	33
PID 2604 wrote to memory of 2496	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	33
PID 2604 wrote to memory of 2496	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	33
PID 2604 wrote to memory of 2688	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	35
PID 2604 wrote to memory of 2688	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	35
PID 2604 wrote to memory of 2688	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	35
PID 2604 wrote to memory of 2688	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	35
PID 2604 wrote to memory of 2844	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	37
PID 2604 wrote to memory of 2844	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	37
PID 2604 wrote to memory of 2844	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	37
PID 2604 wrote to memory of 2844	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	37
PID 2604 wrote to memory of 2972	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	39
PID 2604 wrote to memory of 2972	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	39
PID 2604 wrote to memory of 2972	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	39
PID 2604 wrote to memory of 2972	2604	2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe	39
PID 2936 wrote to memory of 2712	2936	ktnskjea.exe	42
PID 2936 wrote to memory of 2712	2936	ktnskjea.exe	42
PID 2936 wrote to memory of 2712	2936	ktnskjea.exe	42
PID 2936 wrote to memory of 2712	2936	ktnskjea.exe	42
PID 2936 wrote to memory of 2712	2936	ktnskjea.exe	42
PID 2936 wrote to memory of 2712	2936	ktnskjea.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iroynqpc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ktnskjea.exe" C:\Windows\SysWOW64\iroynqpc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create iroynqpc binPath= "C:\Windows\SysWOW64\iroynqpc\ktnskjea.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description iroynqpc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start iroynqpc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- 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:2972

C:\Windows\SysWOW64\iroynqpc\ktnskjea.exe
C:\Windows\SysWOW64\iroynqpc\ktnskjea.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_43c01bc0cedee20faf232227603380fc_black-basta_luca-stealer.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.5MB

MD5
e838b0d5232cb17540a154884ca1ae82

SHA1
5b31713d0a92ed28366647ceb8aa76a48d1445d1

SHA256
e60c8c561b8eaba72048ce423fe5e2a038163c0c8cca64322c416fb4f7341ceb

SHA512
1a42d31ea0ac198d04ed80179ae192bd63db1fec044081d695209ac26e8e57b4ca79aa3d3281c22ba116ccb012c3dd5e85b37bca74910e6c5df3fb26d84477ae

Download Submit
memory/2604-7-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2604-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2604-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2604-6-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2604-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2604-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2712-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-16-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads