tofsee | 551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef

General

Target

JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe
Size

197KB
MD5

d664f6cd5e19ce2644f2f7c37478a718
SHA1

868334830144813fd151a90b35d45d2c04f27069
SHA256

551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef
SHA512

42c48954963a502526e41adc43e5fb4c03996a333fb49fb401020f6834c3f7e8bf3bed5a4043e03d23cc25d6a8ba895083341b30252121cc3beb64cbaa104938
SSDEEP

3072:bnrGpXZ1ZzvsZQ7PTU/K5WHrcPI1Zed05x8EuSzsz:brGRZTsZWbozcPI17huSz+

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
880	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\rfraph\ImagePath = "C:\\Windows\\SysWOW64\\rfraph\\qfsoazse.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_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe

Deletes itself 1 IoCs

pid	Process
2812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1632	qfsoazse.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1632 set thread context of 2812	1632	qfsoazse.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3692	sc.exe
5036	sc.exe
3624	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
4512	4516	WerFault.exe	80
4928	1632	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.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	qfsoazse.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 3380	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	82
PID 4516 wrote to memory of 3380	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	82
PID 4516 wrote to memory of 3380	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	82
PID 4516 wrote to memory of 1960	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	84
PID 4516 wrote to memory of 1960	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	84
PID 4516 wrote to memory of 1960	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	84
PID 4516 wrote to memory of 3692	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	86
PID 4516 wrote to memory of 3692	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	86
PID 4516 wrote to memory of 3692	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	86
PID 4516 wrote to memory of 5036	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	88
PID 4516 wrote to memory of 5036	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	88
PID 4516 wrote to memory of 5036	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	88
PID 4516 wrote to memory of 3624	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	90
PID 4516 wrote to memory of 3624	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	90
PID 4516 wrote to memory of 3624	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	90
PID 4516 wrote to memory of 880	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	93
PID 4516 wrote to memory of 880	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	93
PID 4516 wrote to memory of 880	4516	JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe	93
PID 1632 wrote to memory of 2812	1632	qfsoazse.exe	98
PID 1632 wrote to memory of 2812	1632	qfsoazse.exe	98
PID 1632 wrote to memory of 2812	1632	qfsoazse.exe	98
PID 1632 wrote to memory of 2812	1632	qfsoazse.exe	98
PID 1632 wrote to memory of 2812	1632	qfsoazse.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rfraph\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qfsoazse.exe" C:\Windows\SysWOW64\rfraph\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rfraph binPath= "C:\Windows\SysWOW64\rfraph\qfsoazse.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rfraph "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rfraph
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3624
- 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:880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4516 -s 668
  2⤵
  - Program crash
  PID:4512

C:\Windows\SysWOW64\rfraph\qfsoazse.exe
C:\Windows\SysWOW64\rfraph\qfsoazse.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_551ba3507f8cf7f20baa918bb6445fc67dc1e9980c521e7c8e4f3106b3f563ef.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1632 -s 532
  2⤵
  - Program crash
  PID:4928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4516 -ip 4516
1⤵
PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1632 -ip 1632
1⤵
PID:2252

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

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Downloads

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

Filesize
10.2MB

MD5
babad4582e5e5e8ba4c82bff0d1cabb4

SHA1
e44f2649b3d68b6d694f5283196b4ab31db3c219

SHA256
27b922c04e9cf5e045ae5565377adf959b1507ea21b6869791388f1def76703e

SHA512
0e8b4b7b1905b61d44e622acb6ab4758cb637af368ed0c3db6e3d2e0ce74b54156b317a3ef04d631d30067bbcddd1913e28e056f487d518d91bca506d981b12c

Download Submit
memory/1632-13-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1632-12-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1632-11-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1632-18-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2812-14-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/2812-16-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/2812-17-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/4516-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4516-2-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/4516-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4516-9-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/4516-8-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/4516-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads