tofsee | eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6

General

Target

eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe
Size

183KB
MD5

ed811dad14636a79c920a2d2cb1ec86d
SHA1

50760c4737b74990413fd2facb197482a8ce9f7d
SHA256

eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6
SHA512

4ee8d63adcb3bc266341848b6e27fc016a1ed9cd81865601a17fd6aeafb064b12b74e6da36cb92ffe4f20685436b97b92e03450279ef6bbbb76f9be297e13c3a
SSDEEP

3072:i7QK+RkpwAtmsNNCIFzEhpwC33IH+lgpfrVggjcGkNIVqIF:FRkpwAtmsNNVyMx7ITsq

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.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

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\uykbxpwl = "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

Processes:

netsh.exe

pid process

2748 netsh.exe

pid	process
2748	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\uykbxpwl\ImagePath = "C:\\Windows\\SysWOW64\\uykbxpwl\\atoaete.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1856 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

atoaete.exe

pid process

2604 atoaete.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

atoaete.exe

description pid process target process

PID 2604 set thread context of 1856 2604 atoaete.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2684 sc.exe
2712 sc.exe
2872 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1856	svchost.exe

pid	process
2604	atoaete.exe

description	pid	process	target process
PID 2604 set thread context of 1856	2604	atoaete.exe	svchost.exe

pid	process
2684	sc.exe
2712	sc.exe
2872	sc.exe

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

Processes:

netsh.exe

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

Processes:

cmd.execmd.exesc.exesc.exeatoaete.exesvchost.exeeb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exesc.exenetsh.exe

description	ioc	process
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	atoaete.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exeatoaete.exe

description	pid	process	target process
PID 2644 wrote to memory of 2800	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	cmd.exe
PID 2644 wrote to memory of 2800	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	cmd.exe
PID 2644 wrote to memory of 2800	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	cmd.exe
PID 2644 wrote to memory of 2800	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	cmd.exe
PID 2644 wrote to memory of 2824	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	cmd.exe
PID 2644 wrote to memory of 2824	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	cmd.exe
PID 2644 wrote to memory of 2824	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	cmd.exe
PID 2644 wrote to memory of 2824	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	cmd.exe
PID 2644 wrote to memory of 2684	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2684	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2684	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2684	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2712	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2712	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2712	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2712	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2872	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2872	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2872	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2872	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	sc.exe
PID 2644 wrote to memory of 2748	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	netsh.exe
PID 2644 wrote to memory of 2748	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	netsh.exe
PID 2644 wrote to memory of 2748	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	netsh.exe
PID 2644 wrote to memory of 2748	2644	eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe	netsh.exe
PID 2604 wrote to memory of 1856	2604	atoaete.exe	svchost.exe
PID 2604 wrote to memory of 1856	2604	atoaete.exe	svchost.exe
PID 2604 wrote to memory of 1856	2604	atoaete.exe	svchost.exe
PID 2604 wrote to memory of 1856	2604	atoaete.exe	svchost.exe
PID 2604 wrote to memory of 1856	2604	atoaete.exe	svchost.exe
PID 2604 wrote to memory of 1856	2604	atoaete.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe
"C:\Users\Admin\AppData\Local\Temp\eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uykbxpwl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\atoaete.exe" C:\Windows\SysWOW64\uykbxpwl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uykbxpwl binPath= "C:\Windows\SysWOW64\uykbxpwl\atoaete.exe /d\"C:\Users\Admin\AppData\Local\Temp\eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uykbxpwl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uykbxpwl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- 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:2748

C:\Windows\SysWOW64\uykbxpwl\atoaete.exe
C:\Windows\SysWOW64\uykbxpwl\atoaete.exe /d"C:\Users\Admin\AppData\Local\Temp\eb337a3207ee729da109a3d4d4e33be246d28739d7641aab00b4e945d05bebd6.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2604
- 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:1856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.2MB

MD5
2f6dc143737b4d8c183d394ffd7364a9

SHA1
d3f971baa8a08917f0705a1b0c1acda8b72a7ac8

SHA256
6e63e36858e5abe9493b87dae2b61a721bd0e3df4466f50b12890e58c3adae11

SHA512
073f157a4bb4942abec44cc3fc22c4ab78e4a76f16662eaede6f34ef1ddc904594a39416f67777540e8e1a1008f267e4270ef07e3b2c1798a8a7d820bea3563b

Download Submit
memory/1856-13-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1856-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1856-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1856-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1856-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2604-16-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2644-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2644-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2644-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2644-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2644-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2644-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2644-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads