tofsee | 07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808

General

Target

JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe
Size

198KB
MD5

3ec8e58a92565c4ced1145c1c72ab6ec
SHA1

a34a09a7adc735bf169b9ec84d11f64f68132270
SHA256

07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808
SHA512

b8fab3c46dc352f6bc1e25d1df6a50620e3b6e212b4f2e7540fd2fd343420d83ba059e6e10ff7b419273254fe6a44e72226bf1a3c4fd9209ad768857e6f32e41
SSDEEP

3072:NnrGi1mhhahmGJlLRwdSFK5KircPI1ZeNMkcx8EuSzsz:NrGi1mhZGJFGq0cPI1siuSz+

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
1488	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\gyyqkyet\ImagePath = "C:\\Windows\\SysWOW64\\gyyqkyet\\rpeqkgrh.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe

Deletes itself 1 IoCs

pid	Process
2664	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2308	rpeqkgrh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2308 set thread context of 2664	2308	rpeqkgrh.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
2200	sc.exe
2112	sc.exe
4520	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 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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3416	4376	WerFault.exe	84
4036	2308	WerFault.exe	96

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rpeqkgrh.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	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 2284	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	85
PID 4376 wrote to memory of 2284	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	85
PID 4376 wrote to memory of 2284	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	85
PID 4376 wrote to memory of 2108	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	88
PID 4376 wrote to memory of 2108	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	88
PID 4376 wrote to memory of 2108	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	88
PID 4376 wrote to memory of 2200	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	90
PID 4376 wrote to memory of 2200	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	90
PID 4376 wrote to memory of 2200	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	90
PID 4376 wrote to memory of 2112	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	92
PID 4376 wrote to memory of 2112	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	92
PID 4376 wrote to memory of 2112	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	92
PID 4376 wrote to memory of 4520	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	94
PID 4376 wrote to memory of 4520	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	94
PID 4376 wrote to memory of 4520	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	94
PID 4376 wrote to memory of 1488	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	97
PID 4376 wrote to memory of 1488	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	97
PID 4376 wrote to memory of 1488	4376	JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe	97
PID 2308 wrote to memory of 2664	2308	rpeqkgrh.exe	105
PID 2308 wrote to memory of 2664	2308	rpeqkgrh.exe	105
PID 2308 wrote to memory of 2664	2308	rpeqkgrh.exe	105
PID 2308 wrote to memory of 2664	2308	rpeqkgrh.exe	105
PID 2308 wrote to memory of 2664	2308	rpeqkgrh.exe	105

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gyyqkyet\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rpeqkgrh.exe" C:\Windows\SysWOW64\gyyqkyet\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gyyqkyet binPath= "C:\Windows\SysWOW64\gyyqkyet\rpeqkgrh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gyyqkyet "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gyyqkyet
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4520
- 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:1488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4376 -s 680
  2⤵
  - Program crash
  PID:3416

C:\Windows\SysWOW64\gyyqkyet\rpeqkgrh.exe
C:\Windows\SysWOW64\gyyqkyet\rpeqkgrh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2308 -s 508
  2⤵
  - Program crash
  PID:4036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4376 -ip 4376
1⤵
PID:2640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2308 -ip 2308
1⤵
PID:3644

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\rpeqkgrh.exe

Filesize
11.8MB

MD5
f206afee80a55697a78cef08e13c1193

SHA1
6f4e10309389284504ac804c150aac94df6e1fb5

SHA256
3a07da10309161b85c849fe9d5eccee083b711c1f4a25787d2057705b68e55a0

SHA512
1d35946a08dd186b937aa7c53fe24951c32670436ba11543822dc553ed8bec591696a04a3f844b7d8d980dc7bb6580b27d8b562cb9fb1fb783b6fa8baf4798ba

Download Submit
memory/2308-13-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2308-12-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2308-11-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2308-19-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2664-14-0x0000000000590000-0x00000000005A5000-memory.dmp

Filesize
84KB

Download
memory/2664-16-0x0000000000590000-0x00000000005A5000-memory.dmp

Filesize
84KB

Download
memory/2664-17-0x0000000000590000-0x00000000005A5000-memory.dmp

Filesize
84KB

Download
memory/4376-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4376-2-0x0000000002180000-0x0000000002193000-memory.dmp

Filesize
76KB

Download
memory/4376-8-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/4376-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4376-9-0x0000000002180000-0x0000000002193000-memory.dmp

Filesize
76KB

Download
memory/4376-1-0x0000000000480000-0x0000000000580000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads