tofsee | 36625804f1099ea6e06a519a470c8a82b97aa4e7648a257b72182a60c1d277a6

Analysis

max time kernel
142s
max time network
130s
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_84bf7d5589f060ac9be7580ba979152d_mafia.exe
Size

11.2MB
MD5

84bf7d5589f060ac9be7580ba979152d
SHA1

5ccd57c2b6b7672625c156155e3f1c52fffbb8f6
SHA256

36625804f1099ea6e06a519a470c8a82b97aa4e7648a257b72182a60c1d277a6
SHA512

761fd1b449310b223f9162ce688d4f1cd3b663cfeac359624c35fdb2cd75f2dfad50f3e5b643bd12bc1b74d4c8818e5a9622688da6acc2d65c5e724968686e4d
SSDEEP

196608:xyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:cXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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\xtcayxtk = "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\xtcayxtk\ImagePath = "C:\\Windows\\SysWOW64\\xtcayxtk\\ejtoiurt.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2904	ejtoiurt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2904 set thread context of 2708	2904	ejtoiurt.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2812	sc.exe
2872	sc.exe
3052	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	ejtoiurt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_84bf7d5589f060ac9be7580ba979152d_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	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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2744	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	30
PID 2208 wrote to memory of 2744	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	30
PID 2208 wrote to memory of 2744	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	30
PID 2208 wrote to memory of 2744	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	30
PID 2208 wrote to memory of 2760	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	32
PID 2208 wrote to memory of 2760	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	32
PID 2208 wrote to memory of 2760	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	32
PID 2208 wrote to memory of 2760	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	32
PID 2208 wrote to memory of 2872	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	34
PID 2208 wrote to memory of 2872	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	34
PID 2208 wrote to memory of 2872	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	34
PID 2208 wrote to memory of 2872	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	34
PID 2208 wrote to memory of 3052	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	36
PID 2208 wrote to memory of 3052	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	36
PID 2208 wrote to memory of 3052	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	36
PID 2208 wrote to memory of 3052	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	36
PID 2208 wrote to memory of 2812	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	38
PID 2208 wrote to memory of 2812	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	38
PID 2208 wrote to memory of 2812	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	38
PID 2208 wrote to memory of 2812	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	38
PID 2208 wrote to memory of 2676	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	40
PID 2208 wrote to memory of 2676	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	40
PID 2208 wrote to memory of 2676	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	40
PID 2208 wrote to memory of 2676	2208	2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe	40
PID 2904 wrote to memory of 2708	2904	ejtoiurt.exe	43
PID 2904 wrote to memory of 2708	2904	ejtoiurt.exe	43
PID 2904 wrote to memory of 2708	2904	ejtoiurt.exe	43
PID 2904 wrote to memory of 2708	2904	ejtoiurt.exe	43
PID 2904 wrote to memory of 2708	2904	ejtoiurt.exe	43
PID 2904 wrote to memory of 2708	2904	ejtoiurt.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xtcayxtk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ejtoiurt.exe" C:\Windows\SysWOW64\xtcayxtk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xtcayxtk binPath= "C:\Windows\SysWOW64\xtcayxtk\ejtoiurt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xtcayxtk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3052
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xtcayxtk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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\xtcayxtk\ejtoiurt.exe
C:\Windows\SysWOW64\xtcayxtk\ejtoiurt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_84bf7d5589f060ac9be7580ba979152d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- 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:2708

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\ejtoiurt.exe

Filesize
13.3MB

MD5
56d71e32ec619167bd43443b68198d6d

SHA1
62e800a241dc118e97e89ab3e487e583b15639e9

SHA256
61b4aca2218490ac1a0b37ae62ee2d1593fd7c086e64d49bb9cce4b9bd31dce5

SHA512
f8539cb3502894a7a53b2490f030f9fe918b4704fc7fadd2e5292fcb8b72b8b0bea6afcc84ec9be8ef3cfa98d27061a7221b7c7973370ab6254923168d78cfe8

Download Submit
memory/2208-3-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2208-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2208-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2208-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2208-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2708-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2904-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads