tofsee | 962dc595bf11c09fbeca7a6918d68fda1924910c5d7d55f0ce981179dacfe06d

General

Target

2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe
Size

13.7MB
MD5

a2c2c95048ed493b62574befb9575745
SHA1

bc4a3f52beffa6254822abd9c56525c796278699
SHA256

962dc595bf11c09fbeca7a6918d68fda1924910c5d7d55f0ce981179dacfe06d
SHA512

3cb890e6471bc14e61e22ba5c1f8145ae6ef24935793001de8c3ba4d4803d90ccb663a48c0cac4e6a55f52e9205e9806b3d1a90e5904726f84443a15b80df141
SSDEEP

3072:Xl3t+DDATZKP7Ny5Da8nlGAYSjmhpsb9i1UjQJP+Xn2Dg7NVXewtwtwtwtwtwtws:XzyeKP7qa8VmhpspedP+X2Dg7Hu

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
2360	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\dakrpqoc\ImagePath = "C:\\Windows\\SysWOW64\\dakrpqoc\\smmdoxoq.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-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe

Deletes itself 1 IoCs

pid	Process
4700	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4724	smmdoxoq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4724 set thread context of 4700	4724	smmdoxoq.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
4232	sc.exe
868	sc.exe
4564	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 4 IoCs

pid	pid_target	Process	procid_target
3900	1288	WerFault.exe	86
2408	4724	WerFault.exe	103
1424	4724	WerFault.exe	103
2116	4724	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	smmdoxoq.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	2025-04-04_a2c2c95048ed493b62574befb9575745_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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 1532	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	89
PID 1288 wrote to memory of 1532	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	89
PID 1288 wrote to memory of 1532	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	89
PID 1288 wrote to memory of 3852	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	92
PID 1288 wrote to memory of 3852	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	92
PID 1288 wrote to memory of 3852	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	92
PID 1288 wrote to memory of 4564	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	94
PID 1288 wrote to memory of 4564	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	94
PID 1288 wrote to memory of 4564	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	94
PID 1288 wrote to memory of 4232	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	99
PID 1288 wrote to memory of 4232	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	99
PID 1288 wrote to memory of 4232	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	99
PID 1288 wrote to memory of 868	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	101
PID 1288 wrote to memory of 868	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	101
PID 1288 wrote to memory of 868	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	101
PID 4724 wrote to memory of 4700	4724	smmdoxoq.exe	104
PID 4724 wrote to memory of 4700	4724	smmdoxoq.exe	104
PID 4724 wrote to memory of 4700	4724	smmdoxoq.exe	104
PID 4724 wrote to memory of 4700	4724	smmdoxoq.exe	104
PID 4724 wrote to memory of 4700	4724	smmdoxoq.exe	104
PID 1288 wrote to memory of 2360	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	108
PID 1288 wrote to memory of 2360	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	108
PID 1288 wrote to memory of 2360	1288	2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe	108

C:\Users\Admin\AppData\Local\Temp\2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dakrpqoc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\smmdoxoq.exe" C:\Windows\SysWOW64\dakrpqoc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dakrpqoc binPath= "C:\Windows\SysWOW64\dakrpqoc\smmdoxoq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dakrpqoc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dakrpqoc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:868
- 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:2360
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1288 -s 1036
  2⤵
  - Program crash
  PID:3900

C:\Windows\SysWOW64\dakrpqoc\smmdoxoq.exe
C:\Windows\SysWOW64\dakrpqoc\smmdoxoq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_a2c2c95048ed493b62574befb9575745_black-basta_luca-stealer.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4724
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 512
  2⤵
  - Program crash
  PID:2408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 532
  2⤵
  - Program crash
  PID:1424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 528
  2⤵
  - Program crash
  PID:2116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4724 -ip 4724
1⤵
PID:3112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1288 -ip 1288
1⤵
PID:4084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4724 -ip 4724
1⤵
PID:5856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4724 -ip 4724
1⤵
PID:5996

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\smmdoxoq.exe

Filesize
13.3MB

MD5
001bf846c04524c8abdcabe50515a443

SHA1
f2ac5733a9b4afd43458f5be8fb9d9b3308f8777

SHA256
3a69264a31181ef6d85fa349e92c3a1e6c89f99081bbcb6b3e213e09471fdd47

SHA512
94b8835c81f989acea627287b7fbaa8c251cab66714042ad2435fd8c1d8fa8346a66fb101f67cda980d3834447a57042314c4a1841066d036a57add8311fcf5a

Download Submit
memory/1288-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1288-2-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/1288-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1288-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/1288-15-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/4700-19-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/4700-21-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/4700-10-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/4700-13-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/4700-20-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/4724-9-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4724-18-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4724-8-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads