tofsee | 93cf22f3798685c367dee4bbf73edb52473d1e19571d9e0fda7012f169782311

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 21:29

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General

Target

2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe
Size

13.4MB
MD5

bf9e3969461987ba751e1cd8104054c8
SHA1

92f1e691dd55e2486cfebc15507a40b56f407e03
SHA256

93cf22f3798685c367dee4bbf73edb52473d1e19571d9e0fda7012f169782311
SHA512

21495707d2ff7dec300d69ff4f7149306f209252e04ae1bb04dc433d8586c4fcfd7bc564cc770f72ac92c931b1ba92a30cf5c9d13546a2fb65a0b616a66ebdf3
SSDEEP

3072:1LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:YOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\rlzfhkkp = "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\rlzfhkkp\ImagePath = "C:\\Windows\\SysWOW64\\rlzfhkkp\\xswoeprp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2836	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2968	xswoeprp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2968 set thread context of 2836	2968	xswoeprp.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2768	sc.exe
2816	sc.exe
2884	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.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	xswoeprp.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 1712 wrote to memory of 1508	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	31
PID 1712 wrote to memory of 1508	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	31
PID 1712 wrote to memory of 1508	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	31
PID 1712 wrote to memory of 1508	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	31
PID 1712 wrote to memory of 2496	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	33
PID 1712 wrote to memory of 2496	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	33
PID 1712 wrote to memory of 2496	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	33
PID 1712 wrote to memory of 2496	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	33
PID 1712 wrote to memory of 2768	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	35
PID 1712 wrote to memory of 2768	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	35
PID 1712 wrote to memory of 2768	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	35
PID 1712 wrote to memory of 2768	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	35
PID 1712 wrote to memory of 2816	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	37
PID 1712 wrote to memory of 2816	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	37
PID 1712 wrote to memory of 2816	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	37
PID 1712 wrote to memory of 2816	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	37
PID 1712 wrote to memory of 2884	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	39
PID 1712 wrote to memory of 2884	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	39
PID 1712 wrote to memory of 2884	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	39
PID 1712 wrote to memory of 2884	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	39
PID 1712 wrote to memory of 2824	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	42
PID 1712 wrote to memory of 2824	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	42
PID 1712 wrote to memory of 2824	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	42
PID 1712 wrote to memory of 2824	1712	2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe	42
PID 2968 wrote to memory of 2836	2968	xswoeprp.exe	44
PID 2968 wrote to memory of 2836	2968	xswoeprp.exe	44
PID 2968 wrote to memory of 2836	2968	xswoeprp.exe	44
PID 2968 wrote to memory of 2836	2968	xswoeprp.exe	44
PID 2968 wrote to memory of 2836	2968	xswoeprp.exe	44
PID 2968 wrote to memory of 2836	2968	xswoeprp.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rlzfhkkp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xswoeprp.exe" C:\Windows\SysWOW64\rlzfhkkp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rlzfhkkp binPath= "C:\Windows\SysWOW64\rlzfhkkp\xswoeprp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rlzfhkkp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rlzfhkkp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- 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\rlzfhkkp\xswoeprp.exe
C:\Windows\SysWOW64\rlzfhkkp\xswoeprp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_bf9e3969461987ba751e1cd8104054c8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2968
- 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:2836

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\xswoeprp.exe

Filesize
12.3MB

MD5
42d8173fa39ac3056e18185bfe30ec64

SHA1
d0db18c7679fdf6ac3b81dcc6519d9da47485c05

SHA256
cce28c7640a0d8bb48fcb34dea167b95ec8434ef2a734cc32095cc5ca497417a

SHA512
98683d275e895a89182afca191b1a3bfa365b5559812cc7eedd1f53d03c8c62ea13b07c4a00e48ef1415a32cf62151d7ef552784626f178d4334495e7df18e26

Download Submit
memory/1712-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1712-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1712-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1712-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1712-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1712-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/2836-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2836-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2836-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2836-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2836-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2968-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads