tofsee | c312943b7e1883c7429653df384e0f9c58144eee3b54abc2a67a1084b935cefd

General

Target

2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe
Size

13.4MB
MD5

c29d80afd31ae37e5c40e34ddeca454a
SHA1

3bab195eaeb98802bf56a1d87c7d9273bc8ae8bf
SHA256

c312943b7e1883c7429653df384e0f9c58144eee3b54abc2a67a1084b935cefd
SHA512

a5a12fdb5649e7e02a82bc20ea507667976071131820babf20b5280ab45e39216d945050bacbecb6a652815587797e298b1e1dd7703cf603c47abadccc8cc3e1
SSDEEP

24576:lpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttn:Poo

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
3300	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\ouuvdbc\ImagePath = "C:\\Windows\\SysWOW64\\ouuvdbc\\hdvvshgu.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe

Deletes itself 1 IoCs

pid	Process
1812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3680	hdvvshgu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3680 set thread context of 1812	3680	hdvvshgu.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2712	sc.exe
3388	sc.exe
540	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
4976	3204	WerFault.exe	81
4492	3680	WerFault.exe	92

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hdvvshgu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 4472	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	82
PID 3204 wrote to memory of 4472	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	82
PID 3204 wrote to memory of 4472	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	82
PID 3204 wrote to memory of 1888	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	84
PID 3204 wrote to memory of 1888	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	84
PID 3204 wrote to memory of 1888	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	84
PID 3204 wrote to memory of 2712	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	86
PID 3204 wrote to memory of 2712	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	86
PID 3204 wrote to memory of 2712	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	86
PID 3204 wrote to memory of 3388	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	88
PID 3204 wrote to memory of 3388	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	88
PID 3204 wrote to memory of 3388	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	88
PID 3204 wrote to memory of 540	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	90
PID 3204 wrote to memory of 540	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	90
PID 3204 wrote to memory of 540	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	90
PID 3204 wrote to memory of 3300	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	93
PID 3204 wrote to memory of 3300	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	93
PID 3204 wrote to memory of 3300	3204	2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe	93
PID 3680 wrote to memory of 1812	3680	hdvvshgu.exe	98
PID 3680 wrote to memory of 1812	3680	hdvvshgu.exe	98
PID 3680 wrote to memory of 1812	3680	hdvvshgu.exe	98
PID 3680 wrote to memory of 1812	3680	hdvvshgu.exe	98
PID 3680 wrote to memory of 1812	3680	hdvvshgu.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ouuvdbc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hdvvshgu.exe" C:\Windows\SysWOW64\ouuvdbc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ouuvdbc binPath= "C:\Windows\SysWOW64\ouuvdbc\hdvvshgu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ouuvdbc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ouuvdbc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:540
- 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:3300
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3204 -s 1028
  2⤵
  - Program crash
  PID:4976

C:\Windows\SysWOW64\ouuvdbc\hdvvshgu.exe
C:\Windows\SysWOW64\ouuvdbc\hdvvshgu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_c29d80afd31ae37e5c40e34ddeca454a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3680
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 552
  2⤵
  - Program crash
  PID:4492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3204 -ip 3204
1⤵
PID:1776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3680 -ip 3680
1⤵
PID:2328

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\hdvvshgu.exe

Filesize
12.8MB

MD5
270845aec851f65c1e1d2e4ba86e1ee3

SHA1
357b91a4b10b8693a89bb60ae62aa1689f1b91ee

SHA256
ec33a9f347ba9efab40fae756f20c26082c31ef5dc5603dbd800db995d07773d

SHA512
e55426aee06268912c3f5aeeb3398f7ba6ece6b9d410a2aa4aaef84bb9734bc1776af3d2b0d201c9977f6086d99db7fec9a41207c5f8d0e66485f72e7a05af63

Download Submit
memory/1812-14-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/1812-18-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/1812-16-0x0000000000C20000-0x0000000000C35000-memory.dmp

Filesize
84KB

Download
memory/3204-8-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/3204-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3204-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/3204-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3204-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3204-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/3680-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3680-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3680-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3680-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads