tofsee | 8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6

General

Target

JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe
Size

164KB
MD5

7a78a6f842b330bc684cdda11ab74aa6
SHA1

a82f763272099af37c783f84b3f8bc40c53a3baa
SHA256

8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6
SHA512

c9ec2869ee5eebcf0e35379c93c9266f84cac02d7f9d8957da3aea2daee088775d5fbec358e479202898561a2011a0c5b8ce909c62bc12b60f7271402eccddf8
SSDEEP

3072:e6s43X9OdK9GTy0+FXwCj7DJ5AuwUbayCVyuS9H6p:en2OdO0cXwCj7TwUbayCQuEa

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
5068	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\rngodmn\ImagePath = "C:\\Windows\\SysWOW64\\rngodmn\\rlueruzl.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_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe

Deletes itself 1 IoCs

pid	Process
5036	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2632	rlueruzl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2632 set thread context of 5036	2632	rlueruzl.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
312	sc.exe
384	sc.exe
4312	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
1476	2552	WerFault.exe	81
1484	2632	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	netsh.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	rlueruzl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 4932	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	82
PID 2552 wrote to memory of 4932	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	82
PID 2552 wrote to memory of 4932	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	82
PID 2552 wrote to memory of 2524	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	84
PID 2552 wrote to memory of 2524	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	84
PID 2552 wrote to memory of 2524	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	84
PID 2552 wrote to memory of 312	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	86
PID 2552 wrote to memory of 312	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	86
PID 2552 wrote to memory of 312	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	86
PID 2552 wrote to memory of 384	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	88
PID 2552 wrote to memory of 384	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	88
PID 2552 wrote to memory of 384	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	88
PID 2552 wrote to memory of 4312	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	90
PID 2552 wrote to memory of 4312	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	90
PID 2552 wrote to memory of 4312	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	90
PID 2552 wrote to memory of 5068	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	93
PID 2552 wrote to memory of 5068	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	93
PID 2552 wrote to memory of 5068	2552	JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe	93
PID 2632 wrote to memory of 5036	2632	rlueruzl.exe	98
PID 2632 wrote to memory of 5036	2632	rlueruzl.exe	98
PID 2632 wrote to memory of 5036	2632	rlueruzl.exe	98
PID 2632 wrote to memory of 5036	2632	rlueruzl.exe	98
PID 2632 wrote to memory of 5036	2632	rlueruzl.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rngodmn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rlueruzl.exe" C:\Windows\SysWOW64\rngodmn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rngodmn binPath= "C:\Windows\SysWOW64\rngodmn\rlueruzl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:312
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rngodmn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rngodmn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4312
- 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:5068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 1256
  2⤵
  - Program crash
  PID:1476

C:\Windows\SysWOW64\rngodmn\rlueruzl.exe
C:\Windows\SysWOW64\rngodmn\rlueruzl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8004d9880f148d86544d90cf8d516eefc8571561d1635c03bc91bbb10be11be6.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2632
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2632 -s 516
  2⤵
  - Program crash
  PID:1484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2552 -ip 2552
1⤵
PID:4228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2632 -ip 2632
1⤵
PID:1988

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\rlueruzl.exe

Filesize
11.3MB

MD5
c2ebe863bc7f38eb373691bf019a8c97

SHA1
243472f993fc3800bd1c3452490ac9f6198724df

SHA256
ba2f9ef54c818043201663f913aec7c86fad054ac0cc71f85040e1d96440c4b9

SHA512
413aa129289dcd3bf85171d8579172123994c331cbc10c3dc10d7923b5897fefe144f846034fbe1e798c0cc45636063a109b3fb259a73f918b42427c95d11645

Download Submit
memory/2552-8-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2552-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2552-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/2552-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2552-9-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/2552-2-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/2632-11-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2632-13-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2632-12-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2632-18-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/5036-14-0x00000000008F0000-0x0000000000905000-memory.dmp

Filesize
84KB

Download
memory/5036-16-0x00000000008F0000-0x0000000000905000-memory.dmp

Filesize
84KB

Download
memory/5036-17-0x00000000008F0000-0x0000000000905000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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