tofsee | d46421db9e494d84927336c31c562240b2ff081429e02199e9d85e3e050ca033

General

Target

2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe
Size

10.6MB
MD5

6577141f035830a975a4a321fa116d92
SHA1

2f7c6acd12193bfa417bfa44c9127df92f87c74f
SHA256

d46421db9e494d84927336c31c562240b2ff081429e02199e9d85e3e050ca033
SHA512

34f67c602b41c79db84d82bb26f413691c69f3b4a208ddd395598432c0cca2f39d1abc0ba07a29c96aa3f4a750d4b9adf015d6febe716de4ac4c0e7e93aa0bb0
SSDEEP

6144:E+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:E+r1IeSXMXc7LlxWV4Ug97GZ+ej

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\mtnmorbb = "0"	svchost.exe

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

Processes:

netsh.exe

pid process

2496 netsh.exe

pid	process
2496	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\mtnmorbb\ImagePath = "C:\\Windows\\SysWOW64\\mtnmorbb\\tyllondi.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2200 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tyllondi.exe

pid process

2444 tyllondi.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tyllondi.exe

description pid process target process

PID 2444 set thread context of 2200 2444 tyllondi.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2644 sc.exe
2684 sc.exe
2456 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2200	svchost.exe

pid	process
2444	tyllondi.exe

description	pid	process	target process
PID 2444 set thread context of 2200	2444	tyllondi.exe	svchost.exe

pid	process
2644	sc.exe
2684	sc.exe
2456	sc.exe

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

Processes:

netsh.exe

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

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

Processes:

sc.exenetsh.exesvchost.exesc.exesc.execmd.exetyllondi.exe2024-09-24_6577141f035830a975a4a321fa116d92_mafia.execmd.exe

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tyllondi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exetyllondi.exe

description	pid	process	target process
PID 2204 wrote to memory of 3064	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	cmd.exe
PID 2204 wrote to memory of 3064	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	cmd.exe
PID 2204 wrote to memory of 3064	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	cmd.exe
PID 2204 wrote to memory of 3064	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	cmd.exe
PID 2204 wrote to memory of 2080	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	cmd.exe
PID 2204 wrote to memory of 2080	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	cmd.exe
PID 2204 wrote to memory of 2080	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	cmd.exe
PID 2204 wrote to memory of 2080	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	cmd.exe
PID 2204 wrote to memory of 2644	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2644	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2644	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2644	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2684	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2684	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2684	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2684	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2456	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2456	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2456	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2204 wrote to memory of 2456	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	sc.exe
PID 2444 wrote to memory of 2200	2444	tyllondi.exe	svchost.exe
PID 2444 wrote to memory of 2200	2444	tyllondi.exe	svchost.exe
PID 2444 wrote to memory of 2200	2444	tyllondi.exe	svchost.exe
PID 2444 wrote to memory of 2200	2444	tyllondi.exe	svchost.exe
PID 2444 wrote to memory of 2200	2444	tyllondi.exe	svchost.exe
PID 2444 wrote to memory of 2200	2444	tyllondi.exe	svchost.exe
PID 2204 wrote to memory of 2496	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	netsh.exe
PID 2204 wrote to memory of 2496	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	netsh.exe
PID 2204 wrote to memory of 2496	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	netsh.exe
PID 2204 wrote to memory of 2496	2204	2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2204

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mtnmorbb\
2⤵
- System Location Discovery: System Language Discovery
PID:3064

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tyllondi.exe" C:\Windows\SysWOW64\mtnmorbb\
2⤵
- System Location Discovery: System Language Discovery
PID:2080

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create mtnmorbb binPath= "C:\Windows\SysWOW64\mtnmorbb\tyllondi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2644

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description mtnmorbb "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2684

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start mtnmorbb
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2456

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:2496

C:\Windows\SysWOW64\mtnmorbb\tyllondi.exe
C:\Windows\SysWOW64\mtnmorbb\tyllondi.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-09-24_6577141f035830a975a4a321fa116d92_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2444

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2200

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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\tyllondi.exe

Filesize
14.9MB

MD5
c6ab82983b602fcc71287d3b6fa88a65

SHA1
daee51973915c2638c46c3228a14863f9ca4d567

SHA256
c1629379b279c80dbbcabb50338d8686fa6e94688be35bdca0e2b51757128c9b

SHA512
98a87b4f3904957bc8c1cab843130c7845a21c9075f22c6842d1fee452cdea64b3ef786acfc467bd141cc3aaaa504e5117ce6ce3e326d2da6655c1ecad419273

Download Submit
memory/2200-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2200-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2200-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2200-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2200-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2204-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/2204-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2204-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2204-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2444-12-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads