tofsee | d15dc4c9f5cc18798572b527797678adedd953ae755a9efadbeaf76353cc199f

General

Target

JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe
Size

10.3MB
MD5

7add49d3f94626db3bfd88652c55403b
SHA1

c99c8680050272cade3963627fa87e697b4ee564
SHA256

d15dc4c9f5cc18798572b527797678adedd953ae755a9efadbeaf76353cc199f
SHA512

19edd3367327213abc11f3d696b46cdd4184a74e6653e43b0283aebcd0de135f43e92b69a1906328c318a5e7a3c06806665a015cbe70e5ee9e13e91e7654ca4f
SSDEEP

196608:9I+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++G:9

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
4500	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\tovfnpin\ImagePath = "C:\\Windows\\SysWOW64\\tovfnpin\\rpzxxnwm.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe

Deletes itself 1 IoCs

pid	Process
392	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3816	rpzxxnwm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3816 set thread context of 392	3816	rpzxxnwm.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2904	sc.exe
3584	sc.exe
2236	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
1164	5096	WerFault.exe	81
4796	3816	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.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	rpzxxnwm.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5096 wrote to memory of 4368	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	82
PID 5096 wrote to memory of 4368	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	82
PID 5096 wrote to memory of 4368	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	82
PID 5096 wrote to memory of 2928	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	84
PID 5096 wrote to memory of 2928	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	84
PID 5096 wrote to memory of 2928	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	84
PID 5096 wrote to memory of 2236	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	86
PID 5096 wrote to memory of 2236	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	86
PID 5096 wrote to memory of 2236	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	86
PID 5096 wrote to memory of 2904	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	88
PID 5096 wrote to memory of 2904	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	88
PID 5096 wrote to memory of 2904	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	88
PID 5096 wrote to memory of 3584	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	90
PID 5096 wrote to memory of 3584	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	90
PID 5096 wrote to memory of 3584	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	90
PID 5096 wrote to memory of 4500	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	93
PID 5096 wrote to memory of 4500	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	93
PID 5096 wrote to memory of 4500	5096	JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe	93
PID 3816 wrote to memory of 392	3816	rpzxxnwm.exe	98
PID 3816 wrote to memory of 392	3816	rpzxxnwm.exe	98
PID 3816 wrote to memory of 392	3816	rpzxxnwm.exe	98
PID 3816 wrote to memory of 392	3816	rpzxxnwm.exe	98
PID 3816 wrote to memory of 392	3816	rpzxxnwm.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5096
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tovfnpin\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rpzxxnwm.exe" C:\Windows\SysWOW64\tovfnpin\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tovfnpin binPath= "C:\Windows\SysWOW64\tovfnpin\rpzxxnwm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2236
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tovfnpin "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tovfnpin
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3584
- 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:4500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 1252
  2⤵
  - Program crash
  PID:1164

C:\Windows\SysWOW64\tovfnpin\rpzxxnwm.exe
C:\Windows\SysWOW64\tovfnpin\rpzxxnwm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7add49d3f94626db3bfd88652c55403b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3816
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3816 -s 532
  2⤵
  - Program crash
  PID:4796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5096 -ip 5096
1⤵
PID:4424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3816 -ip 3816
1⤵
PID:2424

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\rpzxxnwm.exe

Filesize
11.0MB

MD5
ce813103d404ba5250434fb0c1cee95e

SHA1
332593c3260cce44d5c50c8201f1b45a4d8341b4

SHA256
66fbc67f14a517175d8d7d7aa0dfb20873f8a4500336eeb3f23250b55194ad77

SHA512
9929ca431a782e722805e4b76f4687f863cd8f42916d44e6cbd2f73492dae362e326b0f2a1a4de0f12163b3ccb5dc1e1d328f9f807f989858862ce7115da3696

Download Submit
memory/392-14-0x00000000006B0000-0x00000000006C5000-memory.dmp

Filesize
84KB

Download
memory/392-12-0x00000000006B0000-0x00000000006C5000-memory.dmp

Filesize
84KB

Download
memory/392-17-0x00000000006B0000-0x00000000006C5000-memory.dmp

Filesize
84KB

Download
memory/3816-11-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/3816-15-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/3816-16-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/5096-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5096-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/5096-8-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/5096-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5096-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/5096-1-0x0000000000AB0000-0x0000000000BB0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads