tofsee | 7af4167a7e387b421f0f87368d51f7924e983b2e245ad75566ec5b20b3417936

General

Target

2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe
Size

11.2MB
MD5

1ceb07b6b28d81b0d1a0292f641d3e34
SHA1

eb3b5aacc5f62f82a0cffd4ebd487b4729335f89
SHA256

7af4167a7e387b421f0f87368d51f7924e983b2e245ad75566ec5b20b3417936
SHA512

d3cc0b7b67b1022c729024f9e7bde8b3b2e8d62c870539eb33e85dac24f6daa06b9d7227516d6c9dafb652df4fee03a7212be96957ba6dbe3d959fc8e2443962
SSDEEP

3072:mLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:POMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
1308	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\owgnkwzd\ImagePath = "C:\\Windows\\SysWOW64\\owgnkwzd\\iijupqow.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-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe

Deletes itself 1 IoCs

pid	Process
3524	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
352	iijupqow.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 352 set thread context of 3524	352	iijupqow.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3488	sc.exe
4768	sc.exe
3972	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
1160	2384	WerFault.exe	82
4472	352	WerFault.exe	96

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iijupqow.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_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	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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 4968	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	86
PID 2384 wrote to memory of 4968	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	86
PID 2384 wrote to memory of 4968	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	86
PID 2384 wrote to memory of 3044	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	88
PID 2384 wrote to memory of 3044	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	88
PID 2384 wrote to memory of 3044	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	88
PID 2384 wrote to memory of 3488	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	90
PID 2384 wrote to memory of 3488	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	90
PID 2384 wrote to memory of 3488	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	90
PID 2384 wrote to memory of 4768	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	92
PID 2384 wrote to memory of 4768	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	92
PID 2384 wrote to memory of 4768	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	92
PID 2384 wrote to memory of 3972	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	94
PID 2384 wrote to memory of 3972	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	94
PID 2384 wrote to memory of 3972	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	94
PID 2384 wrote to memory of 1308	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	97
PID 2384 wrote to memory of 1308	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	97
PID 2384 wrote to memory of 1308	2384	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	97
PID 352 wrote to memory of 3524	352	iijupqow.exe	102
PID 352 wrote to memory of 3524	352	iijupqow.exe	102
PID 352 wrote to memory of 3524	352	iijupqow.exe	102
PID 352 wrote to memory of 3524	352	iijupqow.exe	102
PID 352 wrote to memory of 3524	352	iijupqow.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\owgnkwzd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iijupqow.exe" C:\Windows\SysWOW64\owgnkwzd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create owgnkwzd binPath= "C:\Windows\SysWOW64\owgnkwzd\iijupqow.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description owgnkwzd "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 owgnkwzd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3972
- 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:1308
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 1192
  2⤵
  - Program crash
  PID:1160

C:\Windows\SysWOW64\owgnkwzd\iijupqow.exe
C:\Windows\SysWOW64\owgnkwzd\iijupqow.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:352
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 352 -s 536
  2⤵
  - Program crash
  PID:4472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2384 -ip 2384
1⤵
PID:2464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 352 -ip 352
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\iijupqow.exe

Filesize
10.1MB

MD5
b90e38507fbbfa83ad7c2ac273904c30

SHA1
3d258f439de8c34c33d040fd7bb826aaf4b35b86

SHA256
4dc28f63ddede22c122566571c06b9e64a3d3437e9970bf020625686a9a354bf

SHA512
30084a46cdb57571ddd427e738ec4987f8abdeb0303bfb59c66f3d52d73a381dc723fe0b0cecd91facc84d99ea6b373c9429456dd10f33ca127ac11259e3345a

Download Submit
memory/352-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/352-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/352-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/352-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2384-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2384-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download
memory/2384-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2384-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2384-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2384-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3524-14-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/3524-16-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/3524-17-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads