tofsee | fafab94ed21c622e36d2cc03402c17d3975ca5ec0d018cfa224666ec74059c91

General

Target

JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe
Size

11.9MB
MD5

9cf563ebcc36d1a641cbbb0c2967b400
SHA1

0cb83881694d59b55f57241b7cbe2bd2605792d2
SHA256

fafab94ed21c622e36d2cc03402c17d3975ca5ec0d018cfa224666ec74059c91
SHA512

322b234f4b51d91bb6a8900fc9dc20373168477ebaaa39b21debf4b8d21d1163ca51dca1b5dc6c7d1d851ef00b87a93a39c0043308cee9d36c7b54c3428776b0
SSDEEP

49152:hvUWkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkE:h

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
1704	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\kyfkqwze\ImagePath = "C:\\Windows\\SysWOW64\\kyfkqwze\\xqlxbqb.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_9cf563ebcc36d1a641cbbb0c2967b400.exe

Deletes itself 1 IoCs

pid	Process
2936	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4588	xqlxbqb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4588 set thread context of 2936	4588	xqlxbqb.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3940	sc.exe
3240	sc.exe
4940	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
4076	5052	WerFault.exe	81
1208	4588	WerFault.exe	92

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	sc.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xqlxbqb.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5052 wrote to memory of 4244	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	82
PID 5052 wrote to memory of 4244	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	82
PID 5052 wrote to memory of 4244	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	82
PID 5052 wrote to memory of 4908	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	84
PID 5052 wrote to memory of 4908	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	84
PID 5052 wrote to memory of 4908	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	84
PID 5052 wrote to memory of 3240	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	86
PID 5052 wrote to memory of 3240	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	86
PID 5052 wrote to memory of 3240	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	86
PID 5052 wrote to memory of 4940	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	88
PID 5052 wrote to memory of 4940	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	88
PID 5052 wrote to memory of 4940	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	88
PID 5052 wrote to memory of 3940	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	90
PID 5052 wrote to memory of 3940	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	90
PID 5052 wrote to memory of 3940	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	90
PID 5052 wrote to memory of 1704	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	93
PID 5052 wrote to memory of 1704	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	93
PID 5052 wrote to memory of 1704	5052	JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe	93
PID 4588 wrote to memory of 2936	4588	xqlxbqb.exe	98
PID 4588 wrote to memory of 2936	4588	xqlxbqb.exe	98
PID 4588 wrote to memory of 2936	4588	xqlxbqb.exe	98
PID 4588 wrote to memory of 2936	4588	xqlxbqb.exe	98
PID 4588 wrote to memory of 2936	4588	xqlxbqb.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kyfkqwze\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4244
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xqlxbqb.exe" C:\Windows\SysWOW64\kyfkqwze\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kyfkqwze binPath= "C:\Windows\SysWOW64\kyfkqwze\xqlxbqb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kyfkqwze "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kyfkqwze
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3940
- 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:1704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 1040
  2⤵
  - Program crash
  PID:4076

C:\Windows\SysWOW64\kyfkqwze\xqlxbqb.exe
C:\Windows\SysWOW64\kyfkqwze\xqlxbqb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9cf563ebcc36d1a641cbbb0c2967b400.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 508
  2⤵
  - Program crash
  PID:1208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5052 -ip 5052
1⤵
PID:4060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4588 -ip 4588
1⤵
PID:2012

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\xqlxbqb.exe

Filesize
11.0MB

MD5
39c7e3c91dc7f18de1be18fec5a28d78

SHA1
b1dec1a300887b39ba6fd4fcc002bc2f0cc0d677

SHA256
f54b3529042ef148a61893597b0ddb278d471be5f3e2c3bc664e6591794cc51c

SHA512
75a92770b5e813dd2e32c899946b20c7e545455f45ed52523473e552fbfb099cc1d59cdeac53be1a8ed79b5efe93ba528a4d92d87b502c8d535fc7b66d652d67

Download Submit
memory/2936-11-0x0000000000680000-0x0000000000695000-memory.dmp

Filesize
84KB

Download
memory/2936-13-0x0000000000680000-0x0000000000695000-memory.dmp

Filesize
84KB

Download
memory/2936-14-0x0000000000680000-0x0000000000695000-memory.dmp

Filesize
84KB

Download
memory/4588-15-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/5052-1-0x0000000002FD0000-0x00000000030D0000-memory.dmp

Filesize
1024KB

Download
memory/5052-2-0x0000000002F40000-0x0000000002F53000-memory.dmp

Filesize
76KB

Download
memory/5052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5052-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5052-9-0x0000000002F40000-0x0000000002F53000-memory.dmp

Filesize
76KB

Download
memory/5052-8-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads