tofsee | 7faf95342f16f66b3e626bd8e679ada46040ae39a4aab0ea9bda869b4232d4f9

General

Target

2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe
Size

10.7MB
MD5

d12fcd8e42d1bd01e095d49224242a39
SHA1

52f01de9737f30707bd9391941e37bc3d90f146e
SHA256

7faf95342f16f66b3e626bd8e679ada46040ae39a4aab0ea9bda869b4232d4f9
SHA512

6f823ff4a76b080baaa0b5982ca97842eb66ec8f181576b9963da279dc0b7eb31d35550f5d8c1249518a37c82e91db78933cbfce0364614fe4a930cdea33f25e
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ROMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
2088	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\ccwthbsb\ImagePath = "C:\\Windows\\SysWOW64\\ccwthbsb\\lgkcsdfd.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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe

Deletes itself 1 IoCs

pid	Process
3004	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
380	lgkcsdfd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 380 set thread context of 3004	380	lgkcsdfd.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
544	sc.exe
3052	sc.exe
2984	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 2 IoCs

pid	pid_target	Process	procid_target
2416	4784	WerFault.exe	82
1100	380	WerFault.exe	96

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	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	lgkcsdfd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 1856	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	86
PID 4784 wrote to memory of 1856	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	86
PID 4784 wrote to memory of 1856	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	86
PID 4784 wrote to memory of 3916	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	88
PID 4784 wrote to memory of 3916	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	88
PID 4784 wrote to memory of 3916	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	88
PID 4784 wrote to memory of 2984	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	90
PID 4784 wrote to memory of 2984	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	90
PID 4784 wrote to memory of 2984	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	90
PID 4784 wrote to memory of 544	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	92
PID 4784 wrote to memory of 544	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	92
PID 4784 wrote to memory of 544	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	92
PID 4784 wrote to memory of 3052	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	94
PID 4784 wrote to memory of 3052	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	94
PID 4784 wrote to memory of 3052	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	94
PID 4784 wrote to memory of 2088	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	97
PID 4784 wrote to memory of 2088	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	97
PID 4784 wrote to memory of 2088	4784	2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe	97
PID 380 wrote to memory of 3004	380	lgkcsdfd.exe	103
PID 380 wrote to memory of 3004	380	lgkcsdfd.exe	103
PID 380 wrote to memory of 3004	380	lgkcsdfd.exe	103
PID 380 wrote to memory of 3004	380	lgkcsdfd.exe	103
PID 380 wrote to memory of 3004	380	lgkcsdfd.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ccwthbsb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lgkcsdfd.exe" C:\Windows\SysWOW64\ccwthbsb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ccwthbsb binPath= "C:\Windows\SysWOW64\ccwthbsb\lgkcsdfd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ccwthbsb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:544
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ccwthbsb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3052
- 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:2088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 1044
  2⤵
  - Program crash
  PID:2416

C:\Windows\SysWOW64\ccwthbsb\lgkcsdfd.exe
C:\Windows\SysWOW64\ccwthbsb\lgkcsdfd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d12fcd8e42d1bd01e095d49224242a39_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:380
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 380 -s 512
  2⤵
  - Program crash
  PID:1100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4784 -ip 4784
1⤵
PID:2648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 380 -ip 380
1⤵
PID:2120

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\lgkcsdfd.exe

Filesize
13.9MB

MD5
8ed99c39e970affd68c0d863644518e5

SHA1
3da41bddf582651e33dbe8bd57ca23e72daea659

SHA256
7cc40b6567ec84ed4bdc9c5d3a9adf82d8405b439aa6447949bf7e1909bca067

SHA512
88776a63c4220e8a25b39589375e77ea9af2b7b8fad9e2b9836f458d627696c3e9c3aebdbba40bf7cc45aeab217e78c33450e49ff53cbaf5ba2e68d58dd9aaf7

Download Submit
memory/380-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/380-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/380-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/380-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3004-14-0x0000000000EC0000-0x0000000000ED5000-memory.dmp

Filesize
84KB

Download
memory/3004-16-0x0000000000EC0000-0x0000000000ED5000-memory.dmp

Filesize
84KB

Download
memory/3004-17-0x0000000000EC0000-0x0000000000ED5000-memory.dmp

Filesize
84KB

Download
memory/4784-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4784-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4784-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4784-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/4784-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4784-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads