tofsee | 0387be2c453c92137a7c9cb0a3af0818319a4553908caca1360f81a7381e4bc5

General

Target

2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe
Size

13.1MB
MD5

f5fb2495fddf41b528255e66542d47d5
SHA1

966ff2abd9b6193543eb58b58fc1683c833ae768
SHA256

0387be2c453c92137a7c9cb0a3af0818319a4553908caca1360f81a7381e4bc5
SHA512

ecbd2052029ff818a6c621af601ce24c3bd56b4851fe08ad5f63a1164945dfc786f6de077f147d81366563bac315ef57ec014f1ea8cd9ee22c6e61d3c7f689f3
SSDEEP

6144:sLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQu:BTYe+D2jFu+iZoUFhAz1

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
4032	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\fnuikko\ImagePath = "C:\\Windows\\SysWOW64\\fnuikko\\qoxyhdso.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe

Deletes itself 1 IoCs

pid	Process
3264	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3812	qoxyhdso.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3812 set thread context of 3264	3812	qoxyhdso.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4384	sc.exe
3540	sc.exe
952	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
1792	3812	WerFault.exe	98
3720	4996	WerFault.exe	85

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	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	qoxyhdso.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 1128	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	87
PID 4996 wrote to memory of 1128	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	87
PID 4996 wrote to memory of 1128	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	87
PID 4996 wrote to memory of 2168	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	90
PID 4996 wrote to memory of 2168	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	90
PID 4996 wrote to memory of 2168	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	90
PID 4996 wrote to memory of 4384	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	92
PID 4996 wrote to memory of 4384	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	92
PID 4996 wrote to memory of 4384	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	92
PID 4996 wrote to memory of 3540	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	94
PID 4996 wrote to memory of 3540	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	94
PID 4996 wrote to memory of 3540	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	94
PID 4996 wrote to memory of 952	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	96
PID 4996 wrote to memory of 952	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	96
PID 4996 wrote to memory of 952	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	96
PID 4996 wrote to memory of 4032	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	99
PID 4996 wrote to memory of 4032	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	99
PID 4996 wrote to memory of 4032	4996	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	99
PID 3812 wrote to memory of 3264	3812	qoxyhdso.exe	102
PID 3812 wrote to memory of 3264	3812	qoxyhdso.exe	102
PID 3812 wrote to memory of 3264	3812	qoxyhdso.exe	102
PID 3812 wrote to memory of 3264	3812	qoxyhdso.exe	102
PID 3812 wrote to memory of 3264	3812	qoxyhdso.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fnuikko\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1128
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qoxyhdso.exe" C:\Windows\SysWOW64\fnuikko\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fnuikko binPath= "C:\Windows\SysWOW64\fnuikko\qoxyhdso.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fnuikko "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fnuikko
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:952
- 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:4032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 1040
  2⤵
  - Program crash
  PID:3720

C:\Windows\SysWOW64\fnuikko\qoxyhdso.exe
C:\Windows\SysWOW64\fnuikko\qoxyhdso.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3812
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3812 -s 512
  2⤵
  - Program crash
  PID:1792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4996 -ip 4996
1⤵
PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3812 -ip 3812
1⤵
PID:2800

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\qoxyhdso.exe

Filesize
14.2MB

MD5
e1ed843c93211d18bc1ed83aa14561c4

SHA1
f335f8f5dd102606c8ad5f6b6c07d26247319888

SHA256
611fdf8dcb5abff9f675998bfa4b181d48cff7458ec10d31684404bec34448ed

SHA512
03fdd71459bd07ed24d32b3bc4a4b503bddcf1a1bae8f57e333a2a270e05c2bb8b2f4f30e8b6f13336a93e0469d654ef2ed2a8f5e9717130ef319d9db0546a7f

Download Submit
memory/3264-22-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/3264-21-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/3264-10-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/3264-14-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/3264-20-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/3812-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3812-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3812-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4996-13-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/4996-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4996-18-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download
memory/4996-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4996-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/4996-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4996-2-0x0000000000600000-0x0000000000613000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads