tofsee | 76e851fe7246063d9f3efd757de49a121d8b2c18050da0405de9d50feb4c7bd5

Analysis

max time kernel
149s
max time network
129s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 21:12

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General

Target

2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe
Size

10.4MB
MD5

853c673f9ca067a4f06b5bb2c929c0dc
SHA1

ae2391ae24a1ad82b7c65dd0e4b3af6191536d64
SHA256

76e851fe7246063d9f3efd757de49a121d8b2c18050da0405de9d50feb4c7bd5
SHA512

3a0762dbc072e23bd209e58c770f13e6cdde2a48c1c3ae082beaf582d982b11cefaa8d3bf6d1c6568353ea9229bf6a62eabeb3f1f13cd73a6724ed95eaac1ce3
SSDEEP

24576:uEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZD:Hfot

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\dnswxigr = "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
2676	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\dnswxigr\ImagePath = "C:\\Windows\\SysWOW64\\dnswxigr\\hpeivtcc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2680	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	hpeivtcc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2704 set thread context of 2680	2704	hpeivtcc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
3064	sc.exe
1508	sc.exe
2136	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hpeivtcc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2028	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	30
PID 2736 wrote to memory of 2028	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	30
PID 2736 wrote to memory of 2028	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	30
PID 2736 wrote to memory of 2028	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	30
PID 2736 wrote to memory of 2872	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	32
PID 2736 wrote to memory of 2872	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	32
PID 2736 wrote to memory of 2872	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	32
PID 2736 wrote to memory of 2872	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	32
PID 2736 wrote to memory of 3064	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	34
PID 2736 wrote to memory of 3064	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	34
PID 2736 wrote to memory of 3064	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	34
PID 2736 wrote to memory of 3064	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	34
PID 2736 wrote to memory of 1508	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	36
PID 2736 wrote to memory of 1508	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	36
PID 2736 wrote to memory of 1508	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	36
PID 2736 wrote to memory of 1508	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	36
PID 2736 wrote to memory of 2136	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	38
PID 2736 wrote to memory of 2136	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	38
PID 2736 wrote to memory of 2136	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	38
PID 2736 wrote to memory of 2136	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	38
PID 2736 wrote to memory of 2676	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	40
PID 2736 wrote to memory of 2676	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	40
PID 2736 wrote to memory of 2676	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	40
PID 2736 wrote to memory of 2676	2736	2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe	40
PID 2704 wrote to memory of 2680	2704	hpeivtcc.exe	43
PID 2704 wrote to memory of 2680	2704	hpeivtcc.exe	43
PID 2704 wrote to memory of 2680	2704	hpeivtcc.exe	43
PID 2704 wrote to memory of 2680	2704	hpeivtcc.exe	43
PID 2704 wrote to memory of 2680	2704	hpeivtcc.exe	43
PID 2704 wrote to memory of 2680	2704	hpeivtcc.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dnswxigr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hpeivtcc.exe" C:\Windows\SysWOW64\dnswxigr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dnswxigr binPath= "C:\Windows\SysWOW64\dnswxigr\hpeivtcc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dnswxigr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dnswxigr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- 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:2676

C:\Windows\SysWOW64\dnswxigr\hpeivtcc.exe
C:\Windows\SysWOW64\dnswxigr\hpeivtcc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_853c673f9ca067a4f06b5bb2c929c0dc_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- 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:2680

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\hpeivtcc.exe

Filesize
12.4MB

MD5
bd2e72aa72d4a5373ba0ec0b4f437149

SHA1
16e9bbbda5707025d81197ba9a5ef9ea30e8ac73

SHA256
967b5f1031e4fc68c1fe01201b8cdee468c0027532a27fe555f7a3cbc6fa7c64

SHA512
16e3b2a7da7d8034d17509b499175c7547133032801fb64a1418f40a0482d04df7255f143a29a8e178703a5192519c8771d3c1c9e84c17bf9177f3e833756ae9

Download Submit
memory/2680-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2680-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2680-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2680-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2680-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2704-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2736-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2736-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2736-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2736-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2736-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2736-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads