tofsee | 40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87

General

Target

JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe
Size

317KB
MD5

b2c22bb0daa9e99c491dec5c7553b779
SHA1

8649b29c65040ce271a9b7061756b43654e81422
SHA256

40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87
SHA512

1c633efa02f85489102a1924cc3ff60cfd7e4c55da49dc9603f2b651bde431c5be801aa3d33b9bcb93fed0e2c79194466edf0debbd55f4b4e43a049279f075c2
SSDEEP

3072:fpYUXsWrIhiyl41Fsfs1hev60WrxpzbgqruPhsJVggjcGkNIVqIbkY:fpYMXo4MSev60uzbgwuyr7ITsqz

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.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
4416	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\fwqyzuuy\ImagePath = "C:\\Windows\\SysWOW64\\fwqyzuuy\\qbcuhfxi.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe

Deletes itself 1 IoCs

pid	Process
2832	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1496	qbcuhfxi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1496 set thread context of 2832	1496	qbcuhfxi.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
456	sc.exe
60	sc.exe
2916	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
5016	3624	WerFault.exe	81
2424	1496	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	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	qbcuhfxi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 2192	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	82
PID 3624 wrote to memory of 2192	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	82
PID 3624 wrote to memory of 2192	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	82
PID 3624 wrote to memory of 3200	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	84
PID 3624 wrote to memory of 3200	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	84
PID 3624 wrote to memory of 3200	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	84
PID 3624 wrote to memory of 456	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	86
PID 3624 wrote to memory of 456	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	86
PID 3624 wrote to memory of 456	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	86
PID 3624 wrote to memory of 60	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	88
PID 3624 wrote to memory of 60	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	88
PID 3624 wrote to memory of 60	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	88
PID 3624 wrote to memory of 2916	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	90
PID 3624 wrote to memory of 2916	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	90
PID 3624 wrote to memory of 2916	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	90
PID 3624 wrote to memory of 4416	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	93
PID 3624 wrote to memory of 4416	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	93
PID 3624 wrote to memory of 4416	3624	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	93
PID 1496 wrote to memory of 2832	1496	qbcuhfxi.exe	98
PID 1496 wrote to memory of 2832	1496	qbcuhfxi.exe	98
PID 1496 wrote to memory of 2832	1496	qbcuhfxi.exe	98
PID 1496 wrote to memory of 2832	1496	qbcuhfxi.exe	98
PID 1496 wrote to memory of 2832	1496	qbcuhfxi.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fwqyzuuy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qbcuhfxi.exe" C:\Windows\SysWOW64\fwqyzuuy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fwqyzuuy binPath= "C:\Windows\SysWOW64\fwqyzuuy\qbcuhfxi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fwqyzuuy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:60
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fwqyzuuy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2916
- 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:4416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1208
  2⤵
  - Program crash
  PID:5016

C:\Windows\SysWOW64\fwqyzuuy\qbcuhfxi.exe
C:\Windows\SysWOW64\fwqyzuuy\qbcuhfxi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1496
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 512
  2⤵
  - Program crash
  PID:2424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3624 -ip 3624
1⤵
PID:3092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1496 -ip 1496
1⤵
PID:4604

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\qbcuhfxi.exe

Filesize
12.5MB

MD5
8eb09d00f45f74be37795bdf1f9b1782

SHA1
bb181f44ce6e5fbdd9aa729a6bc4c9f038d7404f

SHA256
58dab5e9330724f7c0a475524665eecc11adba3c55212a437787c97b59165051

SHA512
ade24d5245050a0c1a51eb56231c9559e36f10b2fbfd9572767ae043b793c5d7f9ee6b2530d41d54b1ff13f5fcd5181985b5e84ea660bfbeb785388b292c9bee

Download Submit
memory/1496-14-0x0000000000400000-0x0000000002B84000-memory.dmp

Filesize
39.5MB

Download
memory/2832-10-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/2832-12-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/2832-13-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/3624-0-0x00000000048D0000-0x00000000048DD000-memory.dmp

Filesize
52KB

Download
memory/3624-1-0x00000000048E0000-0x00000000048F3000-memory.dmp

Filesize
76KB

Download
memory/3624-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3624-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3624-8-0x00000000048E0000-0x00000000048F3000-memory.dmp

Filesize
76KB

Download
memory/3624-7-0x00000000048D0000-0x00000000048DD000-memory.dmp

Filesize
52KB

Download
memory/3624-6-0x0000000000400000-0x0000000002B84000-memory.dmp

Filesize
39.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads