tofsee | fd3dc0471381c2c032b31d76bccf7e126526dd9448066ca9d35e1e62e1a188b3

General

Target

JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe
Size

333KB
MD5

00671df357ed0592f04e4d33c3703604
SHA1

38dbdb0fd9f8b6d4bcf0639604f25fd7e513c69f
SHA256

fd3dc0471381c2c032b31d76bccf7e126526dd9448066ca9d35e1e62e1a188b3
SHA512

fbc9bc3aa3e5781033ae1c06d0862e7fde17cd9ed47e1451fc2bc4ef96b7d2936b1e7ba9cb464d846dd7146fd3d7613f2bd94cd892e08ceb118d2c7b6d487a93
SSDEEP

6144:xOYmVlRyNQpj0ViCx2xKxc9Sh/KXl/wLWlWC8RzZap6:xW7Rw2j0VmKqgJKXlwGeVZ

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
4136	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\ejrdftpz\ImagePath = "C:\\Windows\\SysWOW64\\ejrdftpz\\hniluddy.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe

Deletes itself 1 IoCs

pid	Process
2424	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1360	hniluddy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1360 set thread context of 2424	1360	hniluddy.exe	94

Launches sc.exe 3 IoCs

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

pid	Process
2716	sc.exe
3132	sc.exe
448	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
1420	1360	WerFault.exe	93
3516	4300	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hniluddy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_00671df357ed0592f04e4d33c3703604.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4300 wrote to memory of 4180	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	83
PID 4300 wrote to memory of 4180	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	83
PID 4300 wrote to memory of 4180	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	83
PID 4300 wrote to memory of 5112	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	85
PID 4300 wrote to memory of 5112	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	85
PID 4300 wrote to memory of 5112	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	85
PID 4300 wrote to memory of 2716	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	87
PID 4300 wrote to memory of 2716	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	87
PID 4300 wrote to memory of 2716	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	87
PID 4300 wrote to memory of 3132	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	89
PID 4300 wrote to memory of 3132	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	89
PID 4300 wrote to memory of 3132	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	89
PID 4300 wrote to memory of 448	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	91
PID 4300 wrote to memory of 448	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	91
PID 4300 wrote to memory of 448	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	91
PID 1360 wrote to memory of 2424	1360	hniluddy.exe	94
PID 1360 wrote to memory of 2424	1360	hniluddy.exe	94
PID 1360 wrote to memory of 2424	1360	hniluddy.exe	94
PID 1360 wrote to memory of 2424	1360	hniluddy.exe	94
PID 1360 wrote to memory of 2424	1360	hniluddy.exe	94
PID 4300 wrote to memory of 4136	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	98
PID 4300 wrote to memory of 4136	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	98
PID 4300 wrote to memory of 4136	4300	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ejrdftpz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hniluddy.exe" C:\Windows\SysWOW64\ejrdftpz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ejrdftpz binPath= "C:\Windows\SysWOW64\ejrdftpz\hniluddy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ejrdftpz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3132
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ejrdftpz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:448
- 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:4136
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 668
  2⤵
  - Program crash
  PID:3516

C:\Windows\SysWOW64\ejrdftpz\hniluddy.exe
C:\Windows\SysWOW64\ejrdftpz\hniluddy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 516
  2⤵
  - Program crash
  PID:1420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1360 -ip 1360
1⤵
PID:3384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4300 -ip 4300
1⤵
PID:3524

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\hniluddy.exe

Filesize
13.3MB

MD5
63de65a4b8858e1be9326c4a2ac9c7ec

SHA1
3ad5d17baf17d4a4658763d2a8cc96ee34fca53a

SHA256
c4ee671ecd07fb5db5ad8bb0b0a257b82622c2bd2b28f1cd059452524c4feee3

SHA512
d158a873b2efeffd9b23842d34cf9125f4b75234d00badbd578e485e844c15e351a4cf19e60dc894803ed3b2391e76e5d50308210842d7ce6cc781f0991bb23f

Download Submit
memory/1360-8-0x0000000000400000-0x0000000000882000-memory.dmp

Filesize
4.5MB

Download
memory/1360-15-0x0000000000400000-0x0000000000882000-memory.dmp

Filesize
4.5MB

Download
memory/1360-9-0x0000000000400000-0x0000000000882000-memory.dmp

Filesize
4.5MB

Download
memory/2424-10-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/2424-13-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/2424-19-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/2424-20-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/2424-21-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/4300-2-0x0000000000900000-0x0000000000913000-memory.dmp

Filesize
76KB

Download
memory/4300-1-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/4300-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4300-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4300-17-0x0000000000900000-0x0000000000913000-memory.dmp

Filesize
76KB

Download
memory/4300-16-0x0000000000400000-0x0000000000882000-memory.dmp

Filesize
4.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads