tofsee | 9d4f75a0010bb641b3429acee75c668c42b991c897a80d6ac4ffe84f2cea44c0

General

Target

JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe
Size

10.9MB
MD5

8ef57b0ee52ad8d343c5febce2c3caf3
SHA1

944e9be261db19754da9c1a097c7ac05f42fb7e9
SHA256

9d4f75a0010bb641b3429acee75c668c42b991c897a80d6ac4ffe84f2cea44c0
SHA512

630fa92ce62e6c9c0e8a6bdda757719c08d9344df5dfbe9867fa775e2d1f71e480e4fd4f6e9d386700f8caefda4577ab230295c209615df493d86c4411dbeb65
SSDEEP

24576:3AWcGx111111111111111111111111111111111111111111111111111111111X:3HH

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
1016	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\otvqhyhl\ImagePath = "C:\\Windows\\SysWOW64\\otvqhyhl\\jokcadp.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe

Deletes itself 1 IoCs

pid	Process
2900	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4784	jokcadp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4784 set thread context of 2900	4784	jokcadp.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2064	sc.exe
2416	sc.exe
1036	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
684	3076	WerFault.exe	82
4196	4784	WerFault.exe	94

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_8ef57b0ee52ad8d343c5febce2c3caf3.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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jokcadp.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3076 wrote to memory of 3036	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	83
PID 3076 wrote to memory of 3036	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	83
PID 3076 wrote to memory of 3036	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	83
PID 3076 wrote to memory of 2408	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	85
PID 3076 wrote to memory of 2408	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	85
PID 3076 wrote to memory of 2408	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	85
PID 3076 wrote to memory of 2064	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	88
PID 3076 wrote to memory of 2064	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	88
PID 3076 wrote to memory of 2064	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	88
PID 3076 wrote to memory of 2416	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	90
PID 3076 wrote to memory of 2416	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	90
PID 3076 wrote to memory of 2416	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	90
PID 3076 wrote to memory of 1036	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	92
PID 3076 wrote to memory of 1036	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	92
PID 3076 wrote to memory of 1036	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	92
PID 3076 wrote to memory of 1016	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	95
PID 3076 wrote to memory of 1016	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	95
PID 3076 wrote to memory of 1016	3076	JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe	95
PID 4784 wrote to memory of 2900	4784	jokcadp.exe	101
PID 4784 wrote to memory of 2900	4784	jokcadp.exe	101
PID 4784 wrote to memory of 2900	4784	jokcadp.exe	101
PID 4784 wrote to memory of 2900	4784	jokcadp.exe	101
PID 4784 wrote to memory of 2900	4784	jokcadp.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\otvqhyhl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jokcadp.exe" C:\Windows\SysWOW64\otvqhyhl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create otvqhyhl binPath= "C:\Windows\SysWOW64\otvqhyhl\jokcadp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description otvqhyhl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start otvqhyhl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1036
- 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:1016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 680
  2⤵
  - Program crash
  PID:684

C:\Windows\SysWOW64\otvqhyhl\jokcadp.exe
C:\Windows\SysWOW64\otvqhyhl\jokcadp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ef57b0ee52ad8d343c5febce2c3caf3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 516
  2⤵
  - Program crash
  PID:4196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3076 -ip 3076
1⤵
PID:3268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4784 -ip 4784
1⤵
PID:432

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\jokcadp.exe

Filesize
12.2MB

MD5
60766492e0f48f349c42084ae7630379

SHA1
1e7e9ebe52e7e4c4a3180f5ce7a521a5d93403f4

SHA256
24af09ff2f49a0697251de8f2663c63e60e4b17c90f50efe6c7b7f7ebbc565d0

SHA512
7f7cf490f6a51a8ac80cb8d5c0ca620e4c61b494d871a13c2fe1796ae2288f253f9e5881008010636d3e2219e3a9448cee7a93c0854a8e6c5948e82c61563dfd

Download Submit
memory/2900-14-0x0000000000F50000-0x0000000000F65000-memory.dmp

Filesize
84KB

Download
memory/2900-17-0x0000000000F50000-0x0000000000F65000-memory.dmp

Filesize
84KB

Download
memory/2900-16-0x0000000000F50000-0x0000000000F65000-memory.dmp

Filesize
84KB

Download
memory/3076-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3076-8-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3076-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/3076-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3076-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3076-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4784-11-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4784-12-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4784-13-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4784-19-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads