tofsee | 8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e

General

Target

JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe
Size

169KB
MD5

ae26a7d97f24de1ccb18f6e8d5c2b17e
SHA1

db1699530d888798f5755c6fa49b510735ee382c
SHA256

8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e
SHA512

08c8c53f698d20167058d26b973c95fe639b7f2b7812c3b8b4ee6a89088d9917ec0ea31a3d34592400976bf2b3419993d7b5207830e396bc89701c5b69b8e723
SSDEEP

3072:ZINEppMfEjnjh9fzRq6aMLsKdGtkZwA/e22:ONEppMfEhLq69ssAkZ0J

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
1468	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\eybeanxr\ImagePath = "C:\\Windows\\SysWOW64\\eybeanxr\\tvpeawsj.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe

Deletes itself 1 IoCs

pid	Process
640	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3304	tvpeawsj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3304 set thread context of 640	3304	tvpeawsj.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
2804	sc.exe
3300	sc.exe
2136	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
4612	3304	WerFault.exe	94
4592	3148	WerFault.exe	82

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	netsh.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	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tvpeawsj.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3148 wrote to memory of 3212	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	83
PID 3148 wrote to memory of 3212	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	83
PID 3148 wrote to memory of 3212	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	83
PID 3148 wrote to memory of 4924	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	85
PID 3148 wrote to memory of 4924	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	85
PID 3148 wrote to memory of 4924	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	85
PID 3148 wrote to memory of 2804	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	87
PID 3148 wrote to memory of 2804	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	87
PID 3148 wrote to memory of 2804	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	87
PID 3148 wrote to memory of 3300	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	89
PID 3148 wrote to memory of 3300	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	89
PID 3148 wrote to memory of 3300	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	89
PID 3148 wrote to memory of 2136	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	92
PID 3148 wrote to memory of 2136	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	92
PID 3148 wrote to memory of 2136	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	92
PID 3148 wrote to memory of 1468	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	95
PID 3148 wrote to memory of 1468	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	95
PID 3148 wrote to memory of 1468	3148	JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe	95
PID 3304 wrote to memory of 640	3304	tvpeawsj.exe	99
PID 3304 wrote to memory of 640	3304	tvpeawsj.exe	99
PID 3304 wrote to memory of 640	3304	tvpeawsj.exe	99
PID 3304 wrote to memory of 640	3304	tvpeawsj.exe	99
PID 3304 wrote to memory of 640	3304	tvpeawsj.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eybeanxr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3212
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tvpeawsj.exe" C:\Windows\SysWOW64\eybeanxr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eybeanxr binPath= "C:\Windows\SysWOW64\eybeanxr\tvpeawsj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eybeanxr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eybeanxr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- 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:1468
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 1040
  2⤵
  - Program crash
  PID:4592

C:\Windows\SysWOW64\eybeanxr\tvpeawsj.exe
C:\Windows\SysWOW64\eybeanxr\tvpeawsj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8de70b11b35097da33e0d5dd0e501ab30c1e7848bfa1339ae111208720412a2e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3304
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:640
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 520
  2⤵
  - Program crash
  PID:4612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3148 -ip 3148
1⤵
PID:1624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3304 -ip 3304
1⤵
PID:3204

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\tvpeawsj.exe

Filesize
13.9MB

MD5
04d75304b5ea26a8518990acacbd4971

SHA1
6af1ff81a86b61e1253bfe5f2705788dfe954c52

SHA256
1965388c1e2f0daca4d82c2f777c9e8fe778a97a6b76af21f1be90438000a389

SHA512
25f2fbb9c867f3f3611854eba9f5f9f480b8bc0739cf92a83d3fe023e04ce8b49b4b78f30a969504cfd0d34bcf2642e062e34459f6ab737da896eaebd7923d4d

Download Submit
memory/640-10-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/640-17-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/640-19-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/640-18-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/640-7-0x0000000000880000-0x0000000000895000-memory.dmp

Filesize
84KB

Download
memory/3148-13-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3148-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3148-14-0x00000000005A0000-0x00000000005AD000-memory.dmp

Filesize
52KB

Download
memory/3148-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3148-15-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/3148-0-0x00000000005A0000-0x00000000005AD000-memory.dmp

Filesize
52KB

Download
memory/3148-1-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/3304-12-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3304-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads