tofsee | fbeadcb0b5279e7fce975f8fa2b0bf014b39068553feb774e51ceaf2d86b7215

General

Target

JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe
Size

13.0MB
MD5

c06dc6483f2ab9064f7178fd90c2078d
SHA1

41d6de655653c97af24ba3330525491c183c30a8
SHA256

fbeadcb0b5279e7fce975f8fa2b0bf014b39068553feb774e51ceaf2d86b7215
SHA512

d15613202579cf337e31363a4ce33f643fe52509da3b329139b89d3e0e715eb9bae872250c2595232a52dcbc9fa6cc991bcd04ff9e3e7668b6ed5a9d9a49a665
SSDEEP

196608:YuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuX:

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
1248	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\thxalngs\ImagePath = "C:\\Windows\\SysWOW64\\thxalngs\\ngbnrgr.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_c06dc6483f2ab9064f7178fd90c2078d.exe

Deletes itself 1 IoCs

pid	Process
1976	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1684	ngbnrgr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1684 set thread context of 1976	1684	ngbnrgr.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3396	sc.exe
544	sc.exe
1132	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
312	3168	WerFault.exe	81
1532	1684	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_c06dc6483f2ab9064f7178fd90c2078d.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ngbnrgr.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 3168 wrote to memory of 2428	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	82
PID 3168 wrote to memory of 2428	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	82
PID 3168 wrote to memory of 2428	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	82
PID 3168 wrote to memory of 3232	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	84
PID 3168 wrote to memory of 3232	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	84
PID 3168 wrote to memory of 3232	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	84
PID 3168 wrote to memory of 3396	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	86
PID 3168 wrote to memory of 3396	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	86
PID 3168 wrote to memory of 3396	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	86
PID 3168 wrote to memory of 544	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	88
PID 3168 wrote to memory of 544	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	88
PID 3168 wrote to memory of 544	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	88
PID 3168 wrote to memory of 1132	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	90
PID 3168 wrote to memory of 1132	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	90
PID 3168 wrote to memory of 1132	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	90
PID 3168 wrote to memory of 1248	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	93
PID 3168 wrote to memory of 1248	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	93
PID 3168 wrote to memory of 1248	3168	JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe	93
PID 1684 wrote to memory of 1976	1684	ngbnrgr.exe	98
PID 1684 wrote to memory of 1976	1684	ngbnrgr.exe	98
PID 1684 wrote to memory of 1976	1684	ngbnrgr.exe	98
PID 1684 wrote to memory of 1976	1684	ngbnrgr.exe	98
PID 1684 wrote to memory of 1976	1684	ngbnrgr.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\thxalngs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ngbnrgr.exe" C:\Windows\SysWOW64\thxalngs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create thxalngs binPath= "C:\Windows\SysWOW64\thxalngs\ngbnrgr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3396
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description thxalngs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:544
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start thxalngs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1132
- 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:1248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3168 -s 656
  2⤵
  - Program crash
  PID:312

C:\Windows\SysWOW64\thxalngs\ngbnrgr.exe
C:\Windows\SysWOW64\thxalngs\ngbnrgr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c06dc6483f2ab9064f7178fd90c2078d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 512
  2⤵
  - Program crash
  PID:1532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3168 -ip 3168
1⤵
PID:1936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1684 -ip 1684
1⤵
PID:3484

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\ngbnrgr.exe

Filesize
10.3MB

MD5
a71a1d427a191db3a100ff2c4e867d57

SHA1
062cdbe32983536e0685b159bd4d08d3f559710a

SHA256
0a42aff63e790b88116cc82f9579a1124a4b5ff5ef5deab184397c9a36c80a7c

SHA512
6fcf92a8c4dca17689f8e157204f747cfb292102c6089c8ec412c2c5d98526cb7d6957fdcf38cb74d7fb82ebf3b291c659fda6bfafccb875f111e5639baf9fd0

Download Submit
memory/1684-15-0x0000000000400000-0x0000000002F0D000-memory.dmp

Filesize
43.1MB

Download
memory/1976-11-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/1976-13-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/1976-14-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/3168-1-0x0000000003000000-0x0000000003100000-memory.dmp

Filesize
1024KB

Download
memory/3168-2-0x0000000002FE0000-0x0000000002FF3000-memory.dmp

Filesize
76KB

Download
memory/3168-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3168-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3168-9-0x0000000002FE0000-0x0000000002FF3000-memory.dmp

Filesize
76KB

Download
memory/3168-8-0x0000000000400000-0x0000000002F0D000-memory.dmp

Filesize
43.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads