tofsee | 9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c

General

Target

9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe
Size

186KB
MD5

166c6ac61a149f3d397c5b54cdf611b0
SHA1

51ac25392072ea5bd9af9d6d227c0c13a5c7cfdc
SHA256

9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c
SHA512

06d93630a7cf01e119c2cecf9c28de3f8e88b55f0afde93f2d6b8c536efd1ada9e9678aac34cb20c75911a3254ca3de174420a9ff45dbf2b4192c17d2b6ccfba
SSDEEP

3072:L7ojA4DTPi7C4QCDla6Iv0vdJxfez43Valiy1wC3pZa9uD6Vdyhk9:+A4DTPi7C4QBVviXVIQC3wVf

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
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
3120	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\flfmygts\ImagePath = "C:\\Windows\\SysWOW64\\flfmygts\\afpfty.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe

Deletes itself 1 IoCs

pid	Process
748	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4184	afpfty.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4184 set thread context of 748	4184	afpfty.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2868	sc.exe
2692	sc.exe
4716	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3968	4184	WerFault.exe	93
668	4692	WerFault.exe	82

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	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.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	svchost.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afpfty.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4692 wrote to memory of 4548	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	83
PID 4692 wrote to memory of 4548	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	83
PID 4692 wrote to memory of 4548	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	83
PID 4692 wrote to memory of 4848	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	85
PID 4692 wrote to memory of 4848	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	85
PID 4692 wrote to memory of 4848	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	85
PID 4692 wrote to memory of 2868	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	87
PID 4692 wrote to memory of 2868	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	87
PID 4692 wrote to memory of 2868	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	87
PID 4692 wrote to memory of 2692	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	89
PID 4692 wrote to memory of 2692	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	89
PID 4692 wrote to memory of 2692	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	89
PID 4692 wrote to memory of 4716	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	91
PID 4692 wrote to memory of 4716	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	91
PID 4692 wrote to memory of 4716	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	91
PID 4692 wrote to memory of 3120	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	94
PID 4692 wrote to memory of 3120	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	94
PID 4692 wrote to memory of 3120	4692	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	94
PID 4184 wrote to memory of 748	4184	afpfty.exe	98
PID 4184 wrote to memory of 748	4184	afpfty.exe	98
PID 4184 wrote to memory of 748	4184	afpfty.exe	98
PID 4184 wrote to memory of 748	4184	afpfty.exe	98
PID 4184 wrote to memory of 748	4184	afpfty.exe	98

C:\Users\Admin\AppData\Local\Temp\9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe
"C:\Users\Admin\AppData\Local\Temp\9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\flfmygts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\afpfty.exe" C:\Windows\SysWOW64\flfmygts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create flfmygts binPath= "C:\Windows\SysWOW64\flfmygts\afpfty.exe /d\"C:\Users\Admin\AppData\Local\Temp\9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description flfmygts "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start flfmygts
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4716
- 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:3120
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 1036
  2⤵
  - Program crash
  PID:668

C:\Windows\SysWOW64\flfmygts\afpfty.exe
C:\Windows\SysWOW64\flfmygts\afpfty.exe /d"C:\Users\Admin\AppData\Local\Temp\9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4184
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4184 -s 516
  2⤵
  - Program crash
  PID:3968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4692 -ip 4692
1⤵
PID:3836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4184 -ip 4184
1⤵
PID:3688

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\afpfty.exe

Filesize
10.7MB

MD5
648613d9b361c82dc4fc73c4838b189f

SHA1
b7e14eab6edafda1137d750302f2f77023beb794

SHA256
d094ab1ce80555a69df03e09d1b2046c34e618b9d50dde7f22a70af09965dcdf

SHA512
86575a92b259ffc8a314740d523da5261e2de7aa31766c0b6d5e66de76668beb6415d45ca45ede0c87e03e6d2692ecf93062b91123c7093df8f6b5e5bd46ff49

Download Submit
memory/748-8-0x0000000000130000-0x0000000000145000-memory.dmp

Filesize
84KB

Download
memory/748-20-0x0000000000130000-0x0000000000145000-memory.dmp

Filesize
84KB

Download
memory/748-19-0x0000000000130000-0x0000000000145000-memory.dmp

Filesize
84KB

Download
memory/748-18-0x0000000000130000-0x0000000000145000-memory.dmp

Filesize
84KB

Download
memory/748-11-0x0000000000130000-0x0000000000145000-memory.dmp

Filesize
84KB

Download
memory/4184-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4184-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4184-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4692-0-0x00000000005E0000-0x00000000005ED000-memory.dmp

Filesize
52KB

Download
memory/4692-16-0x00000000005F0000-0x0000000000603000-memory.dmp

Filesize
76KB

Download
memory/4692-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4692-15-0x00000000005E0000-0x00000000005ED000-memory.dmp

Filesize
52KB

Download
memory/4692-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4692-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4692-1-0x00000000005F0000-0x0000000000603000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads