tofsee | e489ae6a1b51341c25c741850c4f6e6f82d8241d618b5a082c248788df3ba759

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31-08-2024 15:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe
Size

10.9MB
MD5

00648d8195f97b68fb658c75f256f2b4
SHA1

e45eb357905049dbfe81ad64a87fe4158392aeab
SHA256

d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974
SHA512

d70b12a153aa790925c134c638a522190930fc701d6cd45aff119a292d4657c4084fcafb424093d248421e26f2dd728526759e7f93a49147fdec937f7c86923d
SSDEEP

196608:ITTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTX:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

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\evuzlwrr = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2872	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\evuzlwrr\ImagePath = "C:\\Windows\\SysWOW64\\evuzlwrr\\vozpaxqj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2648	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2780	vozpaxqj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 2648	2780	vozpaxqj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
3056	sc.exe
2768	sc.exe
2852	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	vozpaxqj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.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	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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 2064	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	30
PID 2436 wrote to memory of 2064	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	30
PID 2436 wrote to memory of 2064	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	30
PID 2436 wrote to memory of 2064	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	30
PID 2436 wrote to memory of 2368	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	32
PID 2436 wrote to memory of 2368	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	32
PID 2436 wrote to memory of 2368	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	32
PID 2436 wrote to memory of 2368	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	32
PID 2436 wrote to memory of 3056	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	34
PID 2436 wrote to memory of 3056	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	34
PID 2436 wrote to memory of 3056	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	34
PID 2436 wrote to memory of 3056	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	34
PID 2436 wrote to memory of 2768	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	37
PID 2436 wrote to memory of 2768	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	37
PID 2436 wrote to memory of 2768	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	37
PID 2436 wrote to memory of 2768	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	37
PID 2436 wrote to memory of 2852	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	39
PID 2436 wrote to memory of 2852	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	39
PID 2436 wrote to memory of 2852	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	39
PID 2436 wrote to memory of 2852	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	39
PID 2436 wrote to memory of 2872	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	42
PID 2436 wrote to memory of 2872	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	42
PID 2436 wrote to memory of 2872	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	42
PID 2436 wrote to memory of 2872	2436	d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe	42
PID 2780 wrote to memory of 2648	2780	vozpaxqj.exe	44
PID 2780 wrote to memory of 2648	2780	vozpaxqj.exe	44
PID 2780 wrote to memory of 2648	2780	vozpaxqj.exe	44
PID 2780 wrote to memory of 2648	2780	vozpaxqj.exe	44
PID 2780 wrote to memory of 2648	2780	vozpaxqj.exe	44
PID 2780 wrote to memory of 2648	2780	vozpaxqj.exe	44

C:\Users\Admin\AppData\Local\Temp\d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe
"C:\Users\Admin\AppData\Local\Temp\d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\evuzlwrr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vozpaxqj.exe" C:\Windows\SysWOW64\evuzlwrr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create evuzlwrr binPath= "C:\Windows\SysWOW64\evuzlwrr\vozpaxqj.exe /d\"C:\Users\Admin\AppData\Local\Temp\d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description evuzlwrr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start evuzlwrr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- 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:2872

C:\Windows\SysWOW64\evuzlwrr\vozpaxqj.exe
C:\Windows\SysWOW64\evuzlwrr\vozpaxqj.exe /d"C:\Users\Admin\AppData\Local\Temp\d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- 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:2648

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.3MB

MD5
7e69f1e1df98549de29b8464a5855a57

SHA1
1bb71cc08a34a1d54452743cbae28b01291d9b55

SHA256
b245dab4b8ea7ee7d44fd9cae4a5058117f0c572a18b10f6a4bd63b9b9454f8c

SHA512
c15939e56ba278eed8502e8a0036950ac73e729c7f51721136d234b3539d866d4b0bb7c1c029654e42c237016b0b5f864fabed06a719f48b95d6fbdc8ae48838

Download Submit
memory/2436-10-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2436-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2436-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2436-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2436-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2436-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2436-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2648-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2780-16-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads