tofsee | d79b15983c9b584068dc9b1282bad7310071132581c81b58ee813180b1fd409f

Analysis

max time kernel
146s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-01-2025 18:47

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General

Target

2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe
Size

10.1MB
MD5

4c84596bb67adb966181bac9a7abcc36
SHA1

da214228e670ea1422ba6906958af114aab704f9
SHA256

d79b15983c9b584068dc9b1282bad7310071132581c81b58ee813180b1fd409f
SHA512

621f5f3a28d4c0b13bb959e6a9b11392902ce342d3fbcfdd64c1c74656ea7bb20d4b12ced83b4a0a72327ae9b989fbfe78999caba31ee349c08dedf4393a97b6
SSDEEP

49152:SLFuiE888888888888888888888888888888888888888888888888888888888/:SLM

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\xfqbihnn = "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
2464	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\xfqbihnn\ImagePath = "C:\\Windows\\SysWOW64\\xfqbihnn\\ypxvfahv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2832	ypxvfahv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2832 set thread context of 2728	2832	ypxvfahv.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2796	sc.exe
2096	sc.exe
580	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	ypxvfahv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.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 30 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2396	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	30
PID 2988 wrote to memory of 2396	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	30
PID 2988 wrote to memory of 2396	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	30
PID 2988 wrote to memory of 2396	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	30
PID 2988 wrote to memory of 2328	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	32
PID 2988 wrote to memory of 2328	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	32
PID 2988 wrote to memory of 2328	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	32
PID 2988 wrote to memory of 2328	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	32
PID 2988 wrote to memory of 2096	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	34
PID 2988 wrote to memory of 2096	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	34
PID 2988 wrote to memory of 2096	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	34
PID 2988 wrote to memory of 2096	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	34
PID 2988 wrote to memory of 580	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	36
PID 2988 wrote to memory of 580	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	36
PID 2988 wrote to memory of 580	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	36
PID 2988 wrote to memory of 580	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	36
PID 2988 wrote to memory of 2796	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	38
PID 2988 wrote to memory of 2796	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	38
PID 2988 wrote to memory of 2796	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	38
PID 2988 wrote to memory of 2796	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	38
PID 2832 wrote to memory of 2728	2832	ypxvfahv.exe	41
PID 2832 wrote to memory of 2728	2832	ypxvfahv.exe	41
PID 2832 wrote to memory of 2728	2832	ypxvfahv.exe	41
PID 2832 wrote to memory of 2728	2832	ypxvfahv.exe	41
PID 2832 wrote to memory of 2728	2832	ypxvfahv.exe	41
PID 2832 wrote to memory of 2728	2832	ypxvfahv.exe	41
PID 2988 wrote to memory of 2464	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	42
PID 2988 wrote to memory of 2464	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	42
PID 2988 wrote to memory of 2464	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	42
PID 2988 wrote to memory of 2464	2988	2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xfqbihnn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ypxvfahv.exe" C:\Windows\SysWOW64\xfqbihnn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xfqbihnn binPath= "C:\Windows\SysWOW64\xfqbihnn\ypxvfahv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xfqbihnn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xfqbihnn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:2464

C:\Windows\SysWOW64\xfqbihnn\ypxvfahv.exe
C:\Windows\SysWOW64\xfqbihnn\ypxvfahv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_4c84596bb67adb966181bac9a7abcc36_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832
- 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:2728

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\ypxvfahv.exe

Filesize
12.1MB

MD5
65eb609b0bfbc522d61983c5679fc9b0

SHA1
632ba9c0cd6343cfadb0c5c9977debcede266982

SHA256
1bb650a6c4cd6b7add0ee19a3c522fe5b2aca7b6b397fc5ac783f66a77b39ce0

SHA512
b3d59fcc8906931f55787197302c6c70461be55eb7d03f1a6a3b6f870acfd0d8bdde9c92b811a7e05e0043b2c70e01cb615c954fc2c3bc92f9b9e91ce465b470

Download Submit
memory/2728-8-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2728-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2728-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2728-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2832-13-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/2988-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2988-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2988-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2988-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2988-1-0x0000000002E50000-0x0000000002F50000-memory.dmp

Filesize
1024KB

Download
memory/2988-14-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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