tofsee | fc21c2099b131258186e137fc0b755cbe33b1c3f5fc96f3e1345bf9db4a5535e

General

Target

JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe
Size

11.0MB
MD5

955cae2b97e363277394e684c1b3ff10
SHA1

62122067a9c6d464e5bec9012ff77fdf6ffc1dba
SHA256

fc21c2099b131258186e137fc0b755cbe33b1c3f5fc96f3e1345bf9db4a5535e
SHA512

011a62a7ceb84abbdaf1a917bb8b1f3f9fabac6941b8331f54c0b8a670740eaad0adb9f1af90c102787ae0a7248795d9953185102242525483f8c5e44be949fb
SSDEEP

6144:WnYxnXboLAkQbueUH2KrDzFmN+xgGpXAB0ZO:zXMLLhH2AzHgGpXAB0

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
732	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\blijwdfq\ImagePath = "C:\\Windows\\SysWOW64\\blijwdfq\\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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe

Deletes itself 1 IoCs

pid	Process
4104	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3176	hniluddy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3176 set thread context of 4104	3176	hniluddy.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
5036	sc.exe
3084	sc.exe
2980	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
3692	540	WerFault.exe	82
5084	3176	WerFault.exe	93

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hniluddy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 4752	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	83
PID 540 wrote to memory of 4752	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	83
PID 540 wrote to memory of 4752	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	83
PID 540 wrote to memory of 5040	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	85
PID 540 wrote to memory of 5040	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	85
PID 540 wrote to memory of 5040	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	85
PID 540 wrote to memory of 5036	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	87
PID 540 wrote to memory of 5036	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	87
PID 540 wrote to memory of 5036	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	87
PID 540 wrote to memory of 3084	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	89
PID 540 wrote to memory of 3084	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	89
PID 540 wrote to memory of 3084	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	89
PID 540 wrote to memory of 2980	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	91
PID 540 wrote to memory of 2980	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	91
PID 540 wrote to memory of 2980	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	91
PID 540 wrote to memory of 732	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	94
PID 540 wrote to memory of 732	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	94
PID 540 wrote to memory of 732	540	JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe	94
PID 3176 wrote to memory of 4104	3176	hniluddy.exe	100
PID 3176 wrote to memory of 4104	3176	hniluddy.exe	100
PID 3176 wrote to memory of 4104	3176	hniluddy.exe	100
PID 3176 wrote to memory of 4104	3176	hniluddy.exe	100
PID 3176 wrote to memory of 4104	3176	hniluddy.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\blijwdfq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hniluddy.exe" C:\Windows\SysWOW64\blijwdfq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create blijwdfq binPath= "C:\Windows\SysWOW64\blijwdfq\hniluddy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description blijwdfq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3084
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start blijwdfq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2980
- 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:732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 1040
  2⤵
  - Program crash
  PID:3692

C:\Windows\SysWOW64\blijwdfq\hniluddy.exe
C:\Windows\SysWOW64\blijwdfq\hniluddy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_955cae2b97e363277394e684c1b3ff10.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3176
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 516
  2⤵
  - Program crash
  PID:5084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 540 -ip 540
1⤵
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3176 -ip 3176
1⤵
PID:3716

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
10.3MB

MD5
1ec6fa6f07ad396fd436bc864d9d8393

SHA1
c665ea302ff4fd3cd8a48a2ab253e13f14f2cb81

SHA256
a2a25ffa3047e92d801aa594eb893d52a65e2eb1113496f52b827e25482885b2

SHA512
728a0dadc598c4bcb6dc7768082990a9c1616c9563cb54bbfa99a54e5ec96b16702da6a77cd50eacb7695f2caa24a0553302917d078bfdb0eb50cfbfe6aa6268

Download Submit
memory/540-1-0x0000000001880000-0x0000000001980000-memory.dmp

Filesize
1024KB

Download
memory/540-2-0x0000000001860000-0x0000000001873000-memory.dmp

Filesize
76KB

Download
memory/540-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/540-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/540-9-0x0000000001860000-0x0000000001873000-memory.dmp

Filesize
76KB

Download
memory/540-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/3176-14-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/3176-17-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/4104-11-0x0000000000C30000-0x0000000000C45000-memory.dmp

Filesize
84KB

Download
memory/4104-13-0x0000000000C30000-0x0000000000C45000-memory.dmp

Filesize
84KB

Download
memory/4104-15-0x0000000000C30000-0x0000000000C45000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads