tofsee | da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a

General

Target

JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe
Size

316KB
MD5

c7051b7cbb880cede34b869a26552871
SHA1

21ab89fc5678a17b8fbe60df0cabdecd541a8a12
SHA256

da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a
SHA512

4ae131e2198ba5d49b3657794bdbebb5ceabf3c08727daefe2a18aef6bb41ce8efca6f23c89d33e394f8577fec7c488088558870977d608b526280c7937b6d6f
SSDEEP

6144:bDJdGfXu5oWKgy2+6PgZ4HV0gGZIDu6+gKxrLO:C+5oWKgy2+6PgZ4HV0gGZIIgKw

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
408	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\dzedybfz\ImagePath = "C:\\Windows\\SysWOW64\\dzedybfz\\prlawsof.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_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe

Deletes itself 1 IoCs

pid	Process
4584	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1152	prlawsof.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1152 set thread context of 4584	1152	prlawsof.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4036	sc.exe
4360	sc.exe
3608	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
3684	4004	WerFault.exe	81
3916	1152	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	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.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	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	prlawsof.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 2848	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	82
PID 4004 wrote to memory of 2848	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	82
PID 4004 wrote to memory of 2848	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	82
PID 4004 wrote to memory of 2952	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	84
PID 4004 wrote to memory of 2952	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	84
PID 4004 wrote to memory of 2952	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	84
PID 4004 wrote to memory of 4360	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	86
PID 4004 wrote to memory of 4360	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	86
PID 4004 wrote to memory of 4360	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	86
PID 4004 wrote to memory of 3608	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	88
PID 4004 wrote to memory of 3608	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	88
PID 4004 wrote to memory of 3608	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	88
PID 4004 wrote to memory of 4036	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	90
PID 4004 wrote to memory of 4036	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	90
PID 4004 wrote to memory of 4036	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	90
PID 4004 wrote to memory of 408	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	93
PID 4004 wrote to memory of 408	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	93
PID 4004 wrote to memory of 408	4004	JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe	93
PID 1152 wrote to memory of 4584	1152	prlawsof.exe	98
PID 1152 wrote to memory of 4584	1152	prlawsof.exe	98
PID 1152 wrote to memory of 4584	1152	prlawsof.exe	98
PID 1152 wrote to memory of 4584	1152	prlawsof.exe	98
PID 1152 wrote to memory of 4584	1152	prlawsof.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dzedybfz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\prlawsof.exe" C:\Windows\SysWOW64\dzedybfz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dzedybfz binPath= "C:\Windows\SysWOW64\dzedybfz\prlawsof.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4360
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dzedybfz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dzedybfz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4036
- 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:408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 1320
  2⤵
  - Program crash
  PID:3684

C:\Windows\SysWOW64\dzedybfz\prlawsof.exe
C:\Windows\SysWOW64\dzedybfz\prlawsof.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da4b9d0645088f4d03ac21095c41eae79158fdf64de528c81db6ca1a860d081a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4584
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1152 -s 516
  2⤵
  - Program crash
  PID:3916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4004 -ip 4004
1⤵
PID:952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1152 -ip 1152
1⤵
PID:3468

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\prlawsof.exe

Filesize
13.2MB

MD5
8400f659f008403e7c30e2eedeb58269

SHA1
229d255a9daaae38dbacff9ff916ea105ca07f68

SHA256
a82ad16664d67a7c6d2c6f5b08f80084120bf617b74fb7bf330e386d7c00f92b

SHA512
67f1c0c894a96e1f74ef9c226724affccc1bfd52fa9e84e413419db8eb0a8c35d58afa545ce30277f49a75f7dd5dfe1a1bcf2a9357487de9a59db1875a539a5a

Download Submit
memory/1152-15-0x0000000000400000-0x0000000002B47000-memory.dmp

Filesize
39.3MB

Download
memory/4004-2-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/4004-1-0x0000000002D20000-0x0000000002E20000-memory.dmp

Filesize
1024KB

Download
memory/4004-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4004-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4004-8-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/4004-7-0x0000000000400000-0x0000000002B47000-memory.dmp

Filesize
39.3MB

Download
memory/4584-11-0x00000000007E0000-0x00000000007F5000-memory.dmp

Filesize
84KB

Download
memory/4584-13-0x00000000007E0000-0x00000000007F5000-memory.dmp

Filesize
84KB

Download
memory/4584-14-0x00000000007E0000-0x00000000007F5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads