tofsee | 507aced06e7338e082a63b69fded2e8d40d92c9e15271d3f3ce9b4b564939c72

General

Target

2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe
Size

12.6MB
MD5

f4c675ba77abd4b560b6927107f04d5a
SHA1

a57a67dc9ed2228fb3b02f4289dd632f01f9a82b
SHA256

507aced06e7338e082a63b69fded2e8d40d92c9e15271d3f3ce9b4b564939c72
SHA512

2bb27a269086ed8facedf1daa08e3acfc1b181425c244a25c31dccea7ed85b90caaaf8df241a464b3adefd244aeb49db3f3b14db0adf347cb83b078a32a07e00
SSDEEP

49152:TVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGX:TVdrl/9zG

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

Processes:

netsh.exe

pid process

2372 netsh.exe

pid	process
2372	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\dahxxpcu\ImagePath = "C:\\Windows\\SysWOW64\\dahxxpcu\\ihxtawb.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

Processes:

2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4128 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ihxtawb.exe

pid process

2908 ihxtawb.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ihxtawb.exe

description pid process target process

PID 2908 set thread context of 4128 2908 ihxtawb.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

3708 sc.exe
2380 sc.exe
1556 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4128	svchost.exe

pid	process
2908	ihxtawb.exe

description	pid	process	target process
PID 2908 set thread context of 4128	2908	ihxtawb.exe	svchost.exe

pid	process
3708	sc.exe
2380	sc.exe
1556	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

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4452 2268 WerFault.exe 2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe
1852 2908 WerFault.exe ihxtawb.exe

pid	pid_target	process	target process
4452	2268	WerFault.exe	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe
1852	2908	WerFault.exe	ihxtawb.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.exe2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.execmd.execmd.exesc.exesc.exeihxtawb.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	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ihxtawb.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exeihxtawb.exe

description	pid	process	target process
PID 2268 wrote to memory of 3916	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	cmd.exe
PID 2268 wrote to memory of 3916	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	cmd.exe
PID 2268 wrote to memory of 3916	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	cmd.exe
PID 2268 wrote to memory of 4860	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	cmd.exe
PID 2268 wrote to memory of 4860	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	cmd.exe
PID 2268 wrote to memory of 4860	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	cmd.exe
PID 2268 wrote to memory of 3708	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	sc.exe
PID 2268 wrote to memory of 3708	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	sc.exe
PID 2268 wrote to memory of 3708	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	sc.exe
PID 2268 wrote to memory of 2380	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	sc.exe
PID 2268 wrote to memory of 2380	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	sc.exe
PID 2268 wrote to memory of 2380	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	sc.exe
PID 2268 wrote to memory of 1556	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	sc.exe
PID 2268 wrote to memory of 1556	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	sc.exe
PID 2268 wrote to memory of 1556	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	sc.exe
PID 2268 wrote to memory of 2372	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	netsh.exe
PID 2268 wrote to memory of 2372	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	netsh.exe
PID 2268 wrote to memory of 2372	2268	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	netsh.exe
PID 2908 wrote to memory of 4128	2908	ihxtawb.exe	svchost.exe
PID 2908 wrote to memory of 4128	2908	ihxtawb.exe	svchost.exe
PID 2908 wrote to memory of 4128	2908	ihxtawb.exe	svchost.exe
PID 2908 wrote to memory of 4128	2908	ihxtawb.exe	svchost.exe
PID 2908 wrote to memory of 4128	2908	ihxtawb.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dahxxpcu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ihxtawb.exe" C:\Windows\SysWOW64\dahxxpcu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dahxxpcu binPath= "C:\Windows\SysWOW64\dahxxpcu\ihxtawb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dahxxpcu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dahxxpcu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1556
- 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:2372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 1040
  2⤵
  - Program crash
  PID:4452

C:\Windows\SysWOW64\dahxxpcu\ihxtawb.exe
C:\Windows\SysWOW64\dahxxpcu\ihxtawb.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4128
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2908 -s 532
  2⤵
  - Program crash
  PID:1852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2268 -ip 2268
1⤵
PID:3336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2908 -ip 2908
1⤵
PID:1640

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\ihxtawb.exe

Filesize
14.2MB

MD5
4702d140a3f46a02b174974744d3549c

SHA1
15589f2f26348eff69c123c8c852bc6e7d815fa1

SHA256
0acb2707919900731bb73f4da0cdb193d118f5825e0b9d858e7ad0274fa29e60

SHA512
9ddfd21cf26af23c60db231fe46efa7586b7c166ea2f073117e8f34e745abfb7eb14b0db1cdf389334f22ceae9df09a8045ea60a3a1939bedd1c696ddb9b48dd

Download Submit
memory/2268-8-0x0000000002260000-0x0000000002273000-memory.dmp

Filesize
76KB

Download
memory/2268-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2268-2-0x0000000002260000-0x0000000002273000-memory.dmp

Filesize
76KB

Download
memory/2268-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2268-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2268-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/2908-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2908-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2908-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2908-18-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/4128-14-0x0000000000410000-0x0000000000425000-memory.dmp

Filesize
84KB

Download
memory/4128-16-0x0000000000410000-0x0000000000425000-memory.dmp

Filesize
84KB

Download
memory/4128-17-0x0000000000410000-0x0000000000425000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads