tofsee | 903eb85acd8c2d8c86313f158831da95ccc56c473a06c4ec5e5bdb76a9f29cd8

Analysis

max time kernel
147s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 20:11

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General

Target

2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe
Size

14.2MB
MD5

e83dacde4087c1e3cc20420b916fb7a5
SHA1

a3e119abfd69da39b608ac206cd773640cdf5481
SHA256

903eb85acd8c2d8c86313f158831da95ccc56c473a06c4ec5e5bdb76a9f29cd8
SHA512

bbe5b2f1227efaaf53006e9ea399bf5e4313a87c99fa5a37eb092e94e8b7ff71fb047047e25b8348d1b6ffd1a3e06a53dd8c70eb15750f118cfce10d3003a28b
SSDEEP

24576:lEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZN:ufot

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\pxfuoutm = "0"	svchost.exe

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
2824	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\pxfuoutm\ImagePath = "C:\\Windows\\SysWOW64\\pxfuoutm\\nzymxhpj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2712	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	nzymxhpj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 2712	2892	nzymxhpj.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1968	sc.exe
2844	sc.exe
2800	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

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	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_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	nzymxhpj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 1716	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	30
PID 1696 wrote to memory of 1716	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	30
PID 1696 wrote to memory of 1716	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	30
PID 1696 wrote to memory of 1716	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	30
PID 1696 wrote to memory of 2540	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	32
PID 1696 wrote to memory of 2540	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	32
PID 1696 wrote to memory of 2540	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	32
PID 1696 wrote to memory of 2540	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	32
PID 1696 wrote to memory of 2800	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	34
PID 1696 wrote to memory of 2800	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	34
PID 1696 wrote to memory of 2800	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	34
PID 1696 wrote to memory of 2800	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	34
PID 1696 wrote to memory of 1968	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	36
PID 1696 wrote to memory of 1968	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	36
PID 1696 wrote to memory of 1968	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	36
PID 1696 wrote to memory of 1968	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	36
PID 1696 wrote to memory of 2844	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	38
PID 1696 wrote to memory of 2844	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	38
PID 1696 wrote to memory of 2844	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	38
PID 1696 wrote to memory of 2844	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	38
PID 2892 wrote to memory of 2712	2892	nzymxhpj.exe	41
PID 2892 wrote to memory of 2712	2892	nzymxhpj.exe	41
PID 2892 wrote to memory of 2712	2892	nzymxhpj.exe	41
PID 2892 wrote to memory of 2712	2892	nzymxhpj.exe	41
PID 2892 wrote to memory of 2712	2892	nzymxhpj.exe	41
PID 2892 wrote to memory of 2712	2892	nzymxhpj.exe	41
PID 1696 wrote to memory of 2824	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	42
PID 1696 wrote to memory of 2824	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	42
PID 1696 wrote to memory of 2824	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	42
PID 1696 wrote to memory of 2824	1696	2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pxfuoutm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nzymxhpj.exe" C:\Windows\SysWOW64\pxfuoutm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pxfuoutm binPath= "C:\Windows\SysWOW64\pxfuoutm\nzymxhpj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pxfuoutm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pxfuoutm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- 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:2824

C:\Windows\SysWOW64\pxfuoutm\nzymxhpj.exe
C:\Windows\SysWOW64\pxfuoutm\nzymxhpj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_e83dacde4087c1e3cc20420b916fb7a5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nzymxhpj.exe

Filesize
14.8MB

MD5
87c7f97e80e543942db4b3abc03e96db

SHA1
bd4f50648f2a28536638609ba513986c05379e50

SHA256
d0a01bf458e4fc5d53eb73fc08806f229eeedd9d95f599434c6219f89854f499

SHA512
0f4a003bc3e2917151e203ce58c8ed2975e9df0a934981aa17815e9d9e02edaf875363f920a8d04c3e1cee9d44cb9a33fc01414c5f1c8613c6a414edb6e2e751

Download Submit
memory/1696-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/1696-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1696-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1696-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1696-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2712-11-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2712-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-8-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2712-17-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2712-18-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2892-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads