tofsee | 085d29a31f197ad5184cf4c082ea6e061ccfc1a74a700c0f989054619a123756

General

Target

406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe
Size

12.7MB
MD5

406385b053aa722774e90ba0d8ffcf8e
SHA1

c4761c81a298b9003f9eca48e4918078218560f5
SHA256

085d29a31f197ad5184cf4c082ea6e061ccfc1a74a700c0f989054619a123756
SHA512

133a3ae858f022d512fe01070d88ac5862597dc036ed737bd9d2c5421256830d9319942057e62da7d75af3b887fa71045e4fc659a3c5bbecd86beb7f91f6db2d
SSDEEP

49152:lT81MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMME:lT8

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

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

Processes:

netsh.exe

pid process

3580 netsh.exe

pid	process
3580	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\gtdyhhgx\ImagePath = "C:\\Windows\\SysWOW64\\gtdyhhgx\\wjfvdkfp.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

Processes:

406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

wjfvdkfp.exe

pid process

4888 wjfvdkfp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wjfvdkfp.exe

description pid process target process

PID 4888 set thread context of 2764 4888 wjfvdkfp.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

4324 sc.exe
3944 sc.exe
1972 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4888	wjfvdkfp.exe

description	pid	process	target process
PID 4888 set thread context of 2764	4888	wjfvdkfp.exe	svchost.exe

pid	process
4324	sc.exe
3944	sc.exe
1972	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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:

sc.exesc.exenetsh.exesvchost.exe406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.execmd.execmd.exesc.exewjfvdkfp.exe

description	ioc	process
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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.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	wjfvdkfp.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exewjfvdkfp.exe

description	pid	process	target process
PID 4056 wrote to memory of 532	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	cmd.exe
PID 4056 wrote to memory of 532	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	cmd.exe
PID 4056 wrote to memory of 532	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	cmd.exe
PID 4056 wrote to memory of 2308	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	cmd.exe
PID 4056 wrote to memory of 2308	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	cmd.exe
PID 4056 wrote to memory of 2308	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	cmd.exe
PID 4056 wrote to memory of 4324	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	sc.exe
PID 4056 wrote to memory of 4324	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	sc.exe
PID 4056 wrote to memory of 4324	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	sc.exe
PID 4056 wrote to memory of 3944	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	sc.exe
PID 4056 wrote to memory of 3944	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	sc.exe
PID 4056 wrote to memory of 3944	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	sc.exe
PID 4056 wrote to memory of 1972	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	sc.exe
PID 4056 wrote to memory of 1972	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	sc.exe
PID 4056 wrote to memory of 1972	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	sc.exe
PID 4056 wrote to memory of 3580	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	netsh.exe
PID 4056 wrote to memory of 3580	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	netsh.exe
PID 4056 wrote to memory of 3580	4056	406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe	netsh.exe
PID 4888 wrote to memory of 2764	4888	wjfvdkfp.exe	svchost.exe
PID 4888 wrote to memory of 2764	4888	wjfvdkfp.exe	svchost.exe
PID 4888 wrote to memory of 2764	4888	wjfvdkfp.exe	svchost.exe
PID 4888 wrote to memory of 2764	4888	wjfvdkfp.exe	svchost.exe
PID 4888 wrote to memory of 2764	4888	wjfvdkfp.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4056

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gtdyhhgx\
2⤵
- System Location Discovery: System Language Discovery
PID:532

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wjfvdkfp.exe" C:\Windows\SysWOW64\gtdyhhgx\
2⤵
- System Location Discovery: System Language Discovery
PID:2308

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create gtdyhhgx binPath= "C:\Windows\SysWOW64\gtdyhhgx\wjfvdkfp.exe /d\"C:\Users\Admin\AppData\Local\Temp\406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4324

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description gtdyhhgx "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3944

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start gtdyhhgx
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1972

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:3580

C:\Windows\SysWOW64\gtdyhhgx\wjfvdkfp.exe
C:\Windows\SysWOW64\gtdyhhgx\wjfvdkfp.exe /d"C:\Users\Admin\AppData\Local\Temp\406385b053aa722774e90ba0d8ffcf8e_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4888

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- System Location Discovery: System Language Discovery
PID:2764

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\wjfvdkfp.exe

Filesize
10.2MB

MD5
1af398966255f40254114b4aa0398bf8

SHA1
d3913ae5ac1becf7e42c452237ef89c3542a7adc

SHA256
fce0beb6fd86621826c25ac1520f3f3d9b506959745a77ba034f5622b6698959

SHA512
6a39b5bc76297169dc2cff360af48ee18b3d6615f3147f3e173cbf04a33d3c8d813269433ef93656ad40c29dc8c56239a95565dfc997115a7b201c7ee86f9e8a

Download Submit
memory/2764-10-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/2764-14-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/2764-21-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/2764-20-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/4056-17-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4056-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/4056-13-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/4056-15-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/4056-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4056-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4056-2-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/4888-9-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4888-18-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4888-8-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads