tofsee | 1003769505d0335f9b2a2a45944946d4cb0396cef7c5021328f7deb5ae4ec35c

Analysis

max time kernel
144s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30/03/2025, 09:10

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General

Target

2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe
Size

14.2MB
MD5

e262ec8e9baff3b366098f7f157e2d34
SHA1

4eafb2817a5f837e6cdbf86e9b09d27965f965a1
SHA256

1003769505d0335f9b2a2a45944946d4cb0396cef7c5021328f7deb5ae4ec35c
SHA512

1a9ed6bb9c16666a8063146c9bd750e60b49547df91cdcb40ce265818dc2c50c0f444b3e61e3c8dc6ec8604b1286bba726746793f544d0557796d851ca2ddaa6
SSDEEP

49152:Cf5UwzWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWG:Cf

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\pgnimuxc = "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
1204	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\pgnimuxc\ImagePath = "C:\\Windows\\SysWOW64\\pgnimuxc\\qhpnxszn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2020	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2552	qhpnxszn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2552 set thread context of 2020	2552	qhpnxszn.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2668	sc.exe
2884	sc.exe
2604	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	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	qhpnxszn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2820	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	30
PID 2124 wrote to memory of 2820	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	30
PID 2124 wrote to memory of 2820	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	30
PID 2124 wrote to memory of 2820	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	30
PID 2124 wrote to memory of 2008	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	32
PID 2124 wrote to memory of 2008	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	32
PID 2124 wrote to memory of 2008	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	32
PID 2124 wrote to memory of 2008	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	32
PID 2124 wrote to memory of 2668	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	34
PID 2124 wrote to memory of 2668	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	34
PID 2124 wrote to memory of 2668	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	34
PID 2124 wrote to memory of 2668	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	34
PID 2124 wrote to memory of 2884	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	36
PID 2124 wrote to memory of 2884	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	36
PID 2124 wrote to memory of 2884	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	36
PID 2124 wrote to memory of 2884	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	36
PID 2124 wrote to memory of 2604	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	38
PID 2124 wrote to memory of 2604	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	38
PID 2124 wrote to memory of 2604	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	38
PID 2124 wrote to memory of 2604	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	38
PID 2124 wrote to memory of 1204	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	41
PID 2124 wrote to memory of 1204	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	41
PID 2124 wrote to memory of 1204	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	41
PID 2124 wrote to memory of 1204	2124	2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe	41
PID 2552 wrote to memory of 2020	2552	qhpnxszn.exe	43
PID 2552 wrote to memory of 2020	2552	qhpnxszn.exe	43
PID 2552 wrote to memory of 2020	2552	qhpnxszn.exe	43
PID 2552 wrote to memory of 2020	2552	qhpnxszn.exe	43
PID 2552 wrote to memory of 2020	2552	qhpnxszn.exe	43
PID 2552 wrote to memory of 2020	2552	qhpnxszn.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pgnimuxc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qhpnxszn.exe" C:\Windows\SysWOW64\pgnimuxc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pgnimuxc binPath= "C:\Windows\SysWOW64\pgnimuxc\qhpnxszn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pgnimuxc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pgnimuxc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- 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:1204

C:\Windows\SysWOW64\pgnimuxc\qhpnxszn.exe
C:\Windows\SysWOW64\pgnimuxc\qhpnxszn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_e262ec8e9baff3b366098f7f157e2d34_black-basta_luca-stealer_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- 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:2020

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\qhpnxszn.exe

Filesize
13.1MB

MD5
62aa3a22c4bd59ab66f85fadfc2fab43

SHA1
5ab668a0b6ba43b6897b45eb812b350ff8254c6e

SHA256
9bb4dcbd040e5586476c893e997e31af420af411d21d0fcfd26d2830c189d090

SHA512
69ff7f9d40ef923f8c7caeacbc21af661c41e45451e365d269eb347c76aff85febc8b6c59825074f7771bd49f0e1472e4867ac70737396a45632c56321ddd7d3

Download Submit
memory/2020-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2020-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2020-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2020-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2020-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2124-3-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download
memory/2124-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-9-0x0000000000400000-0x0000000002470000-memory.dmp

Filesize
32.4MB

Download
memory/2124-0-0x0000000000400000-0x0000000002470000-memory.dmp

Filesize
32.4MB

Download
memory/2124-18-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2124-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-2-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2552-8-0x0000000000400000-0x0000000002470000-memory.dmp

Filesize
32.4MB

Download
memory/2552-19-0x0000000000400000-0x0000000002470000-memory.dmp

Filesize
32.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads