tofsee | e1f07793a0019b5919df7f8a0d921b543215e882fbaeddd59454788c2a63b8da

Reason

Machine shutdown

General

Target

2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe
Size

13.4MB
MD5

07fd85a206bfeac8bb76245b7e16680a
SHA1

2453b2c048f4ae7fd52fd0feba91ea60582c2b7a
SHA256

e1f07793a0019b5919df7f8a0d921b543215e882fbaeddd59454788c2a63b8da
SHA512

5ec198bae21579d5b638e13f7699166a84c06a0d806eba4085d80d81d1da9a5670dc4c8ff4e5cf6092782e9c3285719880571c5603cb0c9bece90bee133eb6c3
SSDEEP

393216:kXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:

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
4708	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\gsynufze\ImagePath = "C:\\Windows\\SysWOW64\\gsynufze\\llmxstrz.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-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe

Deletes itself 1 IoCs

pid	Process
708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4664	llmxstrz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4664 set thread context of 708	4664	llmxstrz.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4768	sc.exe
1608	sc.exe
3000	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	llmxstrz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 4460	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	85
PID 4512 wrote to memory of 4460	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	85
PID 4512 wrote to memory of 4460	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	85
PID 4512 wrote to memory of 1580	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	87
PID 4512 wrote to memory of 1580	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	87
PID 4512 wrote to memory of 1580	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	87
PID 4512 wrote to memory of 3000	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	89
PID 4512 wrote to memory of 3000	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	89
PID 4512 wrote to memory of 3000	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	89
PID 4512 wrote to memory of 4768	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	91
PID 4512 wrote to memory of 4768	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	91
PID 4512 wrote to memory of 4768	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	91
PID 4512 wrote to memory of 1608	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	93
PID 4512 wrote to memory of 1608	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	93
PID 4512 wrote to memory of 1608	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	93
PID 4512 wrote to memory of 4708	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	96
PID 4512 wrote to memory of 4708	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	96
PID 4512 wrote to memory of 4708	4512	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	96
PID 4664 wrote to memory of 708	4664	llmxstrz.exe	98
PID 4664 wrote to memory of 708	4664	llmxstrz.exe	98
PID 4664 wrote to memory of 708	4664	llmxstrz.exe	98
PID 4664 wrote to memory of 708	4664	llmxstrz.exe	98
PID 4664 wrote to memory of 708	4664	llmxstrz.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gsynufze\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4460
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\llmxstrz.exe" C:\Windows\SysWOW64\gsynufze\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gsynufze binPath= "C:\Windows\SysWOW64\gsynufze\llmxstrz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gsynufze "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gsynufze
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1608
- 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:4708

C:\Windows\SysWOW64\gsynufze\llmxstrz.exe
C:\Windows\SysWOW64\gsynufze\llmxstrz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:708

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\llmxstrz.exe

Filesize
14.3MB

MD5
722121d17a787d4e8265a7a2f928a228

SHA1
dd127f5147d5e64e2353d8faf6579ef4b3429709

SHA256
1911bc4d947d1e77887086a67e1d4d75bb710434e818bc17ec6c878693daf268

SHA512
27c43bd35bbe224d1a7827459d248a235221cf4d417a61df1fb1cf3951d065f4469ba3d5d8b050ee0e390ed62f9fdb324482075cf025e947f9c5367be6c0bdfc

Download Submit
memory/708-12-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/708-15-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/708-20-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/708-16-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/708-19-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/4512-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/4512-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4512-8-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/4512-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4512-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/4512-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4664-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4664-18-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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