tofsee | 12d7cb1193e627cf4a0d90ea16bc09bc21c9ec50db73fde3483a9a36bd0bb879

General

Target

2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe
Size

14.6MB
MD5

df64271efdf70dbe70025cface3231cf
SHA1

adfb7de6add6ce99f1593179ac263aa129fa6016
SHA256

12d7cb1193e627cf4a0d90ea16bc09bc21c9ec50db73fde3483a9a36bd0bb879
SHA512

4a6f00a43005b198147f0771c6e4befee660df623474591916ebf454f763847771cdd1eec878fbee96b5411595604cb689e92eb4f421865c0705137c9f590b7c
SSDEEP

49152:JZbdihwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwX:Pbdiw

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
3844	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\ccgulxsq\ImagePath = "C:\\Windows\\SysWOW64\\ccgulxsq\\omvwfbqm.exe"	svchost.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	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
5588	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5076	omvwfbqm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5076 set thread context of 5588	5076	omvwfbqm.exe	112

Launches sc.exe 3 IoCs

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

pid	Process
1204	sc.exe
5820	sc.exe
5008	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 2 IoCs

pid	pid_target	Process	procid_target
5840	3556	WerFault.exe	85
5836	5076	WerFault.exe	106

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	omvwfbqm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.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	svchost.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 3956	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	94
PID 3556 wrote to memory of 3956	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	94
PID 3556 wrote to memory of 3956	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	94
PID 3556 wrote to memory of 2672	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	96
PID 3556 wrote to memory of 2672	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	96
PID 3556 wrote to memory of 2672	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	96
PID 3556 wrote to memory of 5008	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	98
PID 3556 wrote to memory of 5008	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	98
PID 3556 wrote to memory of 5008	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	98
PID 3556 wrote to memory of 1204	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	100
PID 3556 wrote to memory of 1204	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	100
PID 3556 wrote to memory of 1204	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	100
PID 3556 wrote to memory of 5820	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	104
PID 3556 wrote to memory of 5820	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	104
PID 3556 wrote to memory of 5820	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	104
PID 3556 wrote to memory of 3844	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	107
PID 3556 wrote to memory of 3844	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	107
PID 3556 wrote to memory of 3844	3556	2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe	107
PID 5076 wrote to memory of 5588	5076	omvwfbqm.exe	112
PID 5076 wrote to memory of 5588	5076	omvwfbqm.exe	112
PID 5076 wrote to memory of 5588	5076	omvwfbqm.exe	112
PID 5076 wrote to memory of 5588	5076	omvwfbqm.exe	112
PID 5076 wrote to memory of 5588	5076	omvwfbqm.exe	112

C:\Users\Admin\AppData\Local\Temp\2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_black-basta_luca-stealer_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ccgulxsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\omvwfbqm.exe" C:\Windows\SysWOW64\ccgulxsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ccgulxsq binPath= "C:\Windows\SysWOW64\ccgulxsq\omvwfbqm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_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:5008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ccgulxsq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ccgulxsq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5820
- 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:3844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 1036
  2⤵
  - Program crash
  PID:5840

C:\Windows\SysWOW64\ccgulxsq\omvwfbqm.exe
C:\Windows\SysWOW64\ccgulxsq\omvwfbqm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_df64271efdf70dbe70025cface3231cf_amadey_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:5076
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 508
  2⤵
  - Program crash
  PID:5836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3556 -ip 3556
1⤵
PID:6140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5076 -ip 5076
1⤵
PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

Modify Registry

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\omvwfbqm.exe

Filesize
14.1MB

MD5
aad370c8ffb4c8f308c7da782c76bb37

SHA1
a136c742a0a5405e4a9003435bba3b30bd76823b

SHA256
5c572778d1e649366bcb918660c5b80428b790b65ea6544b7bfa679b179edf85

SHA512
f1eb639854268cd3ea7d66ffad4b5ac60533616ef1ed20b9bbfeff663aff16b1b28ea4c02941f77cf8e64296c134516abb96b3badd9308c54b54c3f7afef21fb

Download Submit
memory/3556-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3556-3-0x00000000028A0000-0x00000000028B3000-memory.dmp

Filesize
76KB

Download
memory/3556-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3556-2-0x00000000028C0000-0x00000000029C0000-memory.dmp

Filesize
1024KB

Download
memory/3556-8-0x0000000000400000-0x0000000002860000-memory.dmp

Filesize
36.4MB

Download
memory/3556-11-0x00000000028A0000-0x00000000028B3000-memory.dmp

Filesize
76KB

Download
memory/3556-10-0x0000000000400000-0x0000000002860000-memory.dmp

Filesize
36.4MB

Download
memory/3556-0-0x0000000000400000-0x0000000002860000-memory.dmp

Filesize
36.4MB

Download
memory/5076-9-0x0000000000400000-0x0000000002860000-memory.dmp

Filesize
36.4MB

Download
memory/5076-19-0x0000000000400000-0x0000000002860000-memory.dmp

Filesize
36.4MB

Download
memory/5588-14-0x0000000000E00000-0x0000000000E15000-memory.dmp

Filesize
84KB

Download
memory/5588-16-0x0000000000E00000-0x0000000000E15000-memory.dmp

Filesize
84KB

Download
memory/5588-17-0x0000000000E00000-0x0000000000E15000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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