tofsee | 9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548

General

Target

JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe
Size

284KB
MD5

ab514db61e4fe549e7fa5cf39e966f1f
SHA1

34385b6a1930b3f3683f17f8ca03403511a8fac1
SHA256

9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548
SHA512

24712286888012a6dd2faa445ea901e420e1b316913cfe7b482d9fba557e308ddb48cf4aac636d90f7a8589773986ef60e9b28e420597d6ee291eb8fe13ea3f3
SSDEEP

3072:1o5eiWVHGylf7j5r1/s3R94t7S8Q9S20ke957ylo5vuLkXrWFcXObIEAGWN7XsDb:i5RGdf791/sB9A7m/UBGIEAfT2

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
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
1560	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\xsspvqpq\ImagePath = "C:\\Windows\\SysWOW64\\xsspvqpq\\gwwwlcia.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe

Deletes itself 1 IoCs

pid	Process
2720	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1544	gwwwlcia.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1544 set thread context of 2720	1544	gwwwlcia.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
4140	sc.exe
912	sc.exe
4512	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1188	1388	WerFault.exe	82
5012	1544	WerFault.exe	93

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	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gwwwlcia.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 3328	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	83
PID 1388 wrote to memory of 3328	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	83
PID 1388 wrote to memory of 3328	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	83
PID 1388 wrote to memory of 2952	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	85
PID 1388 wrote to memory of 2952	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	85
PID 1388 wrote to memory of 2952	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	85
PID 1388 wrote to memory of 4140	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	87
PID 1388 wrote to memory of 4140	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	87
PID 1388 wrote to memory of 4140	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	87
PID 1388 wrote to memory of 912	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	89
PID 1388 wrote to memory of 912	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	89
PID 1388 wrote to memory of 912	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	89
PID 1388 wrote to memory of 4512	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	91
PID 1388 wrote to memory of 4512	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	91
PID 1388 wrote to memory of 4512	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	91
PID 1388 wrote to memory of 1560	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	94
PID 1388 wrote to memory of 1560	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	94
PID 1388 wrote to memory of 1560	1388	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	94
PID 1544 wrote to memory of 2720	1544	gwwwlcia.exe	99
PID 1544 wrote to memory of 2720	1544	gwwwlcia.exe	99
PID 1544 wrote to memory of 2720	1544	gwwwlcia.exe	99
PID 1544 wrote to memory of 2720	1544	gwwwlcia.exe	99
PID 1544 wrote to memory of 2720	1544	gwwwlcia.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xsspvqpq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gwwwlcia.exe" C:\Windows\SysWOW64\xsspvqpq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xsspvqpq binPath= "C:\Windows\SysWOW64\xsspvqpq\gwwwlcia.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xsspvqpq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xsspvqpq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4512
- 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:1560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 892
  2⤵
  - Program crash
  PID:1188

C:\Windows\SysWOW64\xsspvqpq\gwwwlcia.exe
C:\Windows\SysWOW64\xsspvqpq\gwwwlcia.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 512
  2⤵
  - Program crash
  PID:5012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1388 -ip 1388
1⤵
PID:4736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1544 -ip 1544
1⤵
PID:2312

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\gwwwlcia.exe

Filesize
10.5MB

MD5
97870f77dd264ff803a99c3eed094011

SHA1
e968c73fa05f910d125779034798d6640ad5448a

SHA256
8dade5751e48829aecc83cc24e70c790f88ffa14eca2e043270ecdc3952ea2cb

SHA512
20589a68b221910c66b38cdc58202a0914fcddcaedf7d0af5f9b100a81d917ba849e136787da45b8deacce9dc20e28a2044ce39b5a4aabf37c578ab444f7996a

Download Submit
memory/1388-1-0x0000000002BA0000-0x0000000002CA0000-memory.dmp

Filesize
1024KB

Download
memory/1388-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1388-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1388-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1388-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1388-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/1544-15-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/2720-11-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/2720-13-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download
memory/2720-14-0x0000000001200000-0x0000000001215000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads