tofsee | 133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217

General

Target

JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe
Size

187KB
MD5

bbae7e6938c82707200c36080f772af5
SHA1

44d0484b35f3e6c566124a8633d9486ba8e0e9c9
SHA256

133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217
SHA512

60c10e82b292a2785159ed1a1dce9660a92aa6ae02f1ebeea52aa1f349306a9466648fc2a39fef258c087d7d9e11de61ad67a6dd58adee7e2802d6d2bf8a5a57
SSDEEP

3072:7b7FfjDuFi2Wi6cTO6OTD6Aem2nDQ62Hhg62IBTXFywNlLWdRpZa9uD6VdyhkO:79rDuFi2WiTO6GDonDQlHe62kysVWdRo

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
2532	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\zgofyvtp\ImagePath = "C:\\Windows\\SysWOW64\\zgofyvtp\\kdoepmfy.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe

Deletes itself 1 IoCs

pid	Process
2596	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4008	kdoepmfy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4008 set thread context of 2596	4008	kdoepmfy.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3516	sc.exe
4280	sc.exe
3788	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	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	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.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	kdoepmfy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 1284	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	83
PID 4296 wrote to memory of 1284	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	83
PID 4296 wrote to memory of 1284	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	83
PID 4296 wrote to memory of 2356	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	85
PID 4296 wrote to memory of 2356	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	85
PID 4296 wrote to memory of 2356	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	85
PID 4296 wrote to memory of 3516	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	87
PID 4296 wrote to memory of 3516	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	87
PID 4296 wrote to memory of 3516	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	87
PID 4296 wrote to memory of 4280	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	89
PID 4296 wrote to memory of 4280	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	89
PID 4296 wrote to memory of 4280	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	89
PID 4296 wrote to memory of 3788	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	92
PID 4296 wrote to memory of 3788	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	92
PID 4296 wrote to memory of 3788	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	92
PID 4296 wrote to memory of 2532	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	95
PID 4296 wrote to memory of 2532	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	95
PID 4296 wrote to memory of 2532	4296	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	95
PID 4008 wrote to memory of 2596	4008	kdoepmfy.exe	97
PID 4008 wrote to memory of 2596	4008	kdoepmfy.exe	97
PID 4008 wrote to memory of 2596	4008	kdoepmfy.exe	97
PID 4008 wrote to memory of 2596	4008	kdoepmfy.exe	97
PID 4008 wrote to memory of 2596	4008	kdoepmfy.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zgofyvtp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kdoepmfy.exe" C:\Windows\SysWOW64\zgofyvtp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zgofyvtp binPath= "C:\Windows\SysWOW64\zgofyvtp\kdoepmfy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zgofyvtp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zgofyvtp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3788
- 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:2532

C:\Windows\SysWOW64\zgofyvtp\kdoepmfy.exe
C:\Windows\SysWOW64\zgofyvtp\kdoepmfy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4008
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2596

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\kdoepmfy.exe

Filesize
12.6MB

MD5
b5b947df21d9851e31c872d0b3625fef

SHA1
90e920b4784e60b927b3c1c63252393adfd9e476

SHA256
bb0b80ed8ca6382737e6669113fb44e11121b0e64be8d5af09da8dcd09227475

SHA512
c6e16d67b82b0f20a844ba9a55a70c574d1ddf7e529a73501c93d706bd899f56d93c0278560a2113f4045c2d6d2828417b0befb50793ddf6832f84c3b6c87214

Download Submit
memory/2596-13-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/2596-18-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/2596-15-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/4008-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4008-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4008-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4008-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4296-8-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/4296-7-0x0000000002050000-0x000000000205D000-memory.dmp

Filesize
52KB

Download
memory/4296-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4296-0-0x0000000002050000-0x000000000205D000-memory.dmp

Filesize
52KB

Download
memory/4296-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4296-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4296-1-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads