tofsee | d7d963662075ad46e9df0d4b8098a87a9199dfe65cfc7554c67de39849803fbe

General

Target

2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe
Size

12.7MB
MD5

caa0fde84567b9fd5c1ba8a338afad87
SHA1

f9d0f545585e9662ce653d0caba713788af67113
SHA256

d7d963662075ad46e9df0d4b8098a87a9199dfe65cfc7554c67de39849803fbe
SHA512

ba173887bcf4d17d5e2e8854432d443fbb34c867f28c61fe482d2a39b773407c5eee986c999ec944615115bbb4a2892294cf745e853c5fea3f027c8a54d878c3
SSDEEP

3072:wl3t+DDATZKP7Ny5Da8nlGAYSjmhpsb9i1UjQJP+Xn2Dg7NVXewtwtwtwtwtwtwn:wzyeKP7qa8VmhpspedP+X2Dg7H

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
5196	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\hkcdnlau\ImagePath = "C:\\Windows\\SysWOW64\\hkcdnlau\\qcbpaksm.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-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe

Deletes itself 1 IoCs

pid	Process
4644	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4740	qcbpaksm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4740 set thread context of 4644	4740	qcbpaksm.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
4476	sc.exe
4488	sc.exe
4732	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 4 IoCs

pid	pid_target	Process	procid_target
3440	2420	WerFault.exe	87
1192	4740	WerFault.exe	103
1924	4740	WerFault.exe	103
5576	4740	WerFault.exe	103

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	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_caa0fde84567b9fd5c1ba8a338afad87_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	qcbpaksm.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 1452	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	91
PID 2420 wrote to memory of 1452	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	91
PID 2420 wrote to memory of 1452	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	91
PID 2420 wrote to memory of 5248	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	93
PID 2420 wrote to memory of 5248	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	93
PID 2420 wrote to memory of 5248	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	93
PID 2420 wrote to memory of 4476	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	95
PID 2420 wrote to memory of 4476	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	95
PID 2420 wrote to memory of 4476	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	95
PID 2420 wrote to memory of 4488	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	97
PID 2420 wrote to memory of 4488	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	97
PID 2420 wrote to memory of 4488	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	97
PID 2420 wrote to memory of 4732	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	101
PID 2420 wrote to memory of 4732	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	101
PID 2420 wrote to memory of 4732	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	101
PID 4740 wrote to memory of 4644	4740	qcbpaksm.exe	104
PID 4740 wrote to memory of 4644	4740	qcbpaksm.exe	104
PID 4740 wrote to memory of 4644	4740	qcbpaksm.exe	104
PID 4740 wrote to memory of 4644	4740	qcbpaksm.exe	104
PID 4740 wrote to memory of 4644	4740	qcbpaksm.exe	104
PID 2420 wrote to memory of 5196	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	106
PID 2420 wrote to memory of 5196	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	106
PID 2420 wrote to memory of 5196	2420	2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe	106

C:\Users\Admin\AppData\Local\Temp\2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hkcdnlau\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qcbpaksm.exe" C:\Windows\SysWOW64\hkcdnlau\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hkcdnlau binPath= "C:\Windows\SysWOW64\hkcdnlau\qcbpaksm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hkcdnlau "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hkcdnlau
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4732
- 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:5196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 1044
  2⤵
  - Program crash
  PID:3440

C:\Windows\SysWOW64\hkcdnlau\qcbpaksm.exe
C:\Windows\SysWOW64\hkcdnlau\qcbpaksm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_caa0fde84567b9fd5c1ba8a338afad87_black-basta_luca-stealer.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4740
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 512
  2⤵
  - Program crash
  PID:1192
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 532
  2⤵
  - Program crash
  PID:1924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 552
  2⤵
  - Program crash
  PID:5576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2420 -ip 2420
1⤵
PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4740 -ip 4740
1⤵
PID:3708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4740 -ip 4740
1⤵
PID:836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4740 -ip 4740
1⤵
PID:4808

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.8MB

MD5
84e863b6778ab788e9f8b5d3c6a8c25c

SHA1
a8932a9f3e6f48b16dd2c8feb7cc53f7ba4fb334

SHA256
0134b87cf45bc4d4e36fc96c75a1cd007e82be5de2aa6701921cc4b842d31127

SHA512
a2d4be8b9eb91f413ae7e3b901114dad03478c532da27b3bc258953b3fd0e35a8aabf19d7ad80fdeeea9aff5b469caed1db80d4fad85cf73e096549d93ab2283

Download Submit
memory/2420-2-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download
memory/2420-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-1-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/2420-16-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download
memory/2420-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4644-20-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/4644-22-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/4644-21-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/4644-11-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/4644-14-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/4740-9-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4740-19-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4740-10-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4740-8-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads