tofsee | 5ea9b15b646c6304171c9d34449073332c6a22f780f6946588c4f266260b65c7

General

Target

2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe
Size

10.0MB
MD5

848ac202b7452558d4b1ae14a77fbb8c
SHA1

3fdf2e6e38ade48a8944e99bdacf22aec6a7a73e
SHA256

5ea9b15b646c6304171c9d34449073332c6a22f780f6946588c4f266260b65c7
SHA512

f9b9aed63f0c3c5833d00b3ddd5bda1f172cae98e9c7361d7d35043d88f3ec44503549cb620b08cd5a7de819537fe26e236491086edb7b4fc998410baadbdf27
SSDEEP

49152:L/LuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuP:L

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
4288	netsh.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-1-5-21-1279544337-3716153908-718418795-1000\Control Panel\International\Geo\Nation	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe

Executes dropped EXE 1 IoCs

pid	Process
1752	tvqwpcm.exe

Launches sc.exe 3 IoCs

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

pid	Process
820	sc.exe
3136	sc.exe
4120	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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2400	6108	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 7 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	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_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 6108 wrote to memory of 4532	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	97
PID 6108 wrote to memory of 4532	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	97
PID 6108 wrote to memory of 4532	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	97
PID 6108 wrote to memory of 1560	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	99
PID 6108 wrote to memory of 1560	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	99
PID 6108 wrote to memory of 1560	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	99
PID 6108 wrote to memory of 820	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	101
PID 6108 wrote to memory of 820	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	101
PID 6108 wrote to memory of 820	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	101
PID 6108 wrote to memory of 3136	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	103
PID 6108 wrote to memory of 3136	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	103
PID 6108 wrote to memory of 3136	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	103
PID 6108 wrote to memory of 4120	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	105
PID 6108 wrote to memory of 4120	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	105
PID 6108 wrote to memory of 4120	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	105
PID 6108 wrote to memory of 4288	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	108
PID 6108 wrote to memory of 4288	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	108
PID 6108 wrote to memory of 4288	6108	2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe	108

C:\Users\Admin\AppData\Local\Temp\2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\duhkpvqw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tvqwpcm.exe" C:\Windows\SysWOW64\duhkpvqw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create duhkpvqw binPath= "C:\Windows\SysWOW64\duhkpvqw\tvqwpcm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description duhkpvqw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start duhkpvqw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4120
- 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:4288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 6108 -s 1040
  2⤵
  - Program crash
  PID:2400

C:\Windows\SysWOW64\duhkpvqw\tvqwpcm.exe
C:\Windows\SysWOW64\duhkpvqw\tvqwpcm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_848ac202b7452558d4b1ae14a77fbb8c_black-basta_luca-stealer.exe"
1⤵
- Executes dropped EXE
PID:1752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 6108 -ip 6108
1⤵
PID:2376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

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

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

1

T1562.004

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\tvqwpcm.exe

Filesize
13.2MB

MD5
7b1583343c2711cbb9576821d64a2c68

SHA1
87e3c270f149918c39fa0e3354295e1ef63160f5

SHA256
7b6ef32ce522ea56558bdb216aaef66e44fc6a40cf3c2d7b253ada98c5b81d52

SHA512
dbc10fa428df0d8fb3f6c0d855561f319b4fc8546f16d69202ad38d4c8d6726253cb9f9b21c26bbe497c0ffe30de1d2d5a0019f1006f7448722fbfbcf0386d85

Download Submit
memory/1752-8-0x0000000000400000-0x00000000033A9000-memory.dmp

Filesize
47.7MB

Download
memory/6108-0-0x0000000000400000-0x00000000033A9000-memory.dmp

Filesize
47.7MB

Download
memory/6108-2-0x0000000003410000-0x0000000003510000-memory.dmp

Filesize
1024KB

Download
memory/6108-3-0x0000000003520000-0x0000000003533000-memory.dmp

Filesize
76KB

Download
memory/6108-5-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/6108-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/6108-11-0x0000000003520000-0x0000000003533000-memory.dmp

Filesize
76KB

Download
memory/6108-13-0x0000000000400000-0x00000000033A9000-memory.dmp

Filesize
47.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads