tofsee | f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e

General

Target

JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe
Size

306KB
MD5

0661057150ee41d5430b7cdfa59b9151
SHA1

9a2954d4b64ed1a2347fd601f18f87d36a7306d3
SHA256

f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e
SHA512

f88700b8b61a27c34ff8dabd227dceef34909c403d76abbe70d9d11112d08c1b672e4acae8555cc50e3542166ccf34a90ad3dccf2d79cc90cb89fbe1bb46acfb
SSDEEP

6144:CPrWeZIupcl/Yi3FshG74zgmlL6tZeXuZU8:iWeZIupcl1FKG7ogILTXuC

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
1924	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\hxizxfra\ImagePath = "C:\\Windows\\SysWOW64\\hxizxfra\\ncplxwpb.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe

Deletes itself 1 IoCs

pid	Process
876	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5024	ncplxwpb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5024 set thread context of 876	5024	ncplxwpb.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2936	sc.exe
820	sc.exe
4556	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
2100	2708	WerFault.exe	81
3944	5024	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	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ncplxwpb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2512	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	82
PID 2708 wrote to memory of 2512	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	82
PID 2708 wrote to memory of 2512	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	82
PID 2708 wrote to memory of 1540	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	84
PID 2708 wrote to memory of 1540	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	84
PID 2708 wrote to memory of 1540	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	84
PID 2708 wrote to memory of 2936	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	86
PID 2708 wrote to memory of 2936	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	86
PID 2708 wrote to memory of 2936	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	86
PID 2708 wrote to memory of 820	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	88
PID 2708 wrote to memory of 820	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	88
PID 2708 wrote to memory of 820	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	88
PID 2708 wrote to memory of 4556	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	90
PID 2708 wrote to memory of 4556	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	90
PID 2708 wrote to memory of 4556	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	90
PID 2708 wrote to memory of 1924	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	93
PID 2708 wrote to memory of 1924	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	93
PID 2708 wrote to memory of 1924	2708	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	93
PID 5024 wrote to memory of 876	5024	ncplxwpb.exe	98
PID 5024 wrote to memory of 876	5024	ncplxwpb.exe	98
PID 5024 wrote to memory of 876	5024	ncplxwpb.exe	98
PID 5024 wrote to memory of 876	5024	ncplxwpb.exe	98
PID 5024 wrote to memory of 876	5024	ncplxwpb.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hxizxfra\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ncplxwpb.exe" C:\Windows\SysWOW64\hxizxfra\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hxizxfra binPath= "C:\Windows\SysWOW64\hxizxfra\ncplxwpb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hxizxfra "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hxizxfra
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4556
- 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:1924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 1240
  2⤵
  - Program crash
  PID:2100

C:\Windows\SysWOW64\hxizxfra\ncplxwpb.exe
C:\Windows\SysWOW64\hxizxfra\ncplxwpb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5024 -s 560
  2⤵
  - Program crash
  PID:3944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2708 -ip 2708
1⤵
PID:3676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5024 -ip 5024
1⤵
PID:5012

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\ncplxwpb.exe

Filesize
11.0MB

MD5
52bf8136b8e22ce834dc3c0de1a68965

SHA1
ac1fd6ca00abd8b0a85b0ba55dbac1a173b8c849

SHA256
ac5ed062b809ab8e2a57c8b5a668f2c0ac877a94e860f61449ea0d9b1fbd42d0

SHA512
4b2a9ea98ccf6099c5e1edf49737a9711f84c1b0e1a3f21448dd31d19ae5f33a16ab02c26ab5ca170a20b7cdd8b80154482bcb75254efde5a86d674f6e696767

Download Submit
memory/876-13-0x0000000000E80000-0x0000000000E95000-memory.dmp

Filesize
84KB

Download
memory/876-11-0x0000000000E80000-0x0000000000E95000-memory.dmp

Filesize
84KB

Download
memory/876-14-0x0000000000E80000-0x0000000000E95000-memory.dmp

Filesize
84KB

Download
memory/2708-1-0x0000000002D60000-0x0000000002E60000-memory.dmp

Filesize
1024KB

Download
memory/2708-2-0x0000000002C70000-0x0000000002C83000-memory.dmp

Filesize
76KB

Download
memory/2708-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-9-0x0000000002C70000-0x0000000002C83000-memory.dmp

Filesize
76KB

Download
memory/2708-8-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/5024-15-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads