tofsee | 949c70d199e8ec085e4c0072157006721a0f435640dff45384dbe28d564a1893

General

Target

2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe
Size

10.1MB
MD5

6c561d7ee826330e51b8a80c25440437
SHA1

8bcf90e5d52f4e388b2f4e18de7a2a2b6490640f
SHA256

949c70d199e8ec085e4c0072157006721a0f435640dff45384dbe28d564a1893
SHA512

61b743d97759cddcba92589ca934e8afe83f84521b4670e7c4bd29248ee3b3a2accf0055a5a9a23dfdb8a16df1856898af52ecdddbfa4ffb0bb1abf258d9c707
SSDEEP

3072:ALBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:dOMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4748	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\lhkfqxp\ImagePath = "C:\\Windows\\SysWOW64\\lhkfqxp\\evdblgnb.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe

Deletes itself 1 IoCs

pid	Process
1736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3328	evdblgnb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3328 set thread context of 1736	3328	evdblgnb.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
2684	sc.exe
2560	sc.exe
3772	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
3176	868	WerFault.exe	82
2952	3328	WerFault.exe	94

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	netsh.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	evdblgnb.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 2184	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	84
PID 868 wrote to memory of 2184	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	84
PID 868 wrote to memory of 2184	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	84
PID 868 wrote to memory of 3188	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	86
PID 868 wrote to memory of 3188	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	86
PID 868 wrote to memory of 3188	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	86
PID 868 wrote to memory of 2684	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	88
PID 868 wrote to memory of 2684	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	88
PID 868 wrote to memory of 2684	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	88
PID 868 wrote to memory of 2560	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	90
PID 868 wrote to memory of 2560	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	90
PID 868 wrote to memory of 2560	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	90
PID 868 wrote to memory of 3772	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	92
PID 868 wrote to memory of 3772	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	92
PID 868 wrote to memory of 3772	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	92
PID 868 wrote to memory of 4748	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	95
PID 868 wrote to memory of 4748	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	95
PID 868 wrote to memory of 4748	868	2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe	95
PID 3328 wrote to memory of 1736	3328	evdblgnb.exe	107
PID 3328 wrote to memory of 1736	3328	evdblgnb.exe	107
PID 3328 wrote to memory of 1736	3328	evdblgnb.exe	107
PID 3328 wrote to memory of 1736	3328	evdblgnb.exe	107
PID 3328 wrote to memory of 1736	3328	evdblgnb.exe	107

C:\Users\Admin\AppData\Local\Temp\2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lhkfqxp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\evdblgnb.exe" C:\Windows\SysWOW64\lhkfqxp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3188
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lhkfqxp binPath= "C:\Windows\SysWOW64\lhkfqxp\evdblgnb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lhkfqxp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lhkfqxp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3772
- 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:4748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 1176
  2⤵
  - Program crash
  PID:3176

C:\Windows\SysWOW64\lhkfqxp\evdblgnb.exe
C:\Windows\SysWOW64\lhkfqxp\evdblgnb.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-19_6c561d7ee826330e51b8a80c25440437_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3328 -s 512
  2⤵
  - Program crash
  PID:2952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 868 -ip 868
1⤵
PID:4568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3328 -ip 3328
1⤵
PID:3164

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\evdblgnb.exe

Filesize
12.6MB

MD5
4f9d7d3b174f52ccc62f9d433049e58a

SHA1
d7d244d1fa6ec7edd1d0fed17443486a451bf55e

SHA256
e9fdd4c81468b6636cb8c6662d383be7152f5f6559d51ae37434cf4e1c6bea5d

SHA512
422099db8f0adf16faadd50f90c7aa183b1dd3c082ed50ee21a38b22648efe3c8ea381f3869b30a09188154416f56ecf59ef36d79f3e23859a2c718a821173db

Download Submit
memory/868-8-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download
memory/868-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/868-2-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download
memory/868-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/868-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/868-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/1736-14-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/1736-16-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/1736-17-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/3328-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3328-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3328-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3328-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads