tofsee | 35fa3ce15cd57657d359dd7d5b0cc5fbb8f4447f8a6c2f116b5a1b86eda08519

General

Target

84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe
Size

11.4MB
MD5

84b615d0756f2dbbc12320ca3af1dbf0
SHA1

2dcf03c2002f5cfb8b6493b297e032fc522d2c40
SHA256

35fa3ce15cd57657d359dd7d5b0cc5fbb8f4447f8a6c2f116b5a1b86eda08519
SHA512

b4c28bd5b0387690fb328586230e002477a22e90676aa831588521d5e721c985e9aa37cb98feea4e3c70627d9376d8a30f126ba72a446e072b259062255bc26c
SSDEEP

196608:BmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmG:BmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmG

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

Processes:

netsh.exe

pid process

2152 netsh.exe

pid	process
2152	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\mafhtrak\ImagePath = "C:\\Windows\\SysWOW64\\mafhtrak\\ovhudqrl.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

Processes:

84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2292 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ovhudqrl.exe

pid process

1448 ovhudqrl.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ovhudqrl.exe

description pid process target process

PID 1448 set thread context of 2292 1448 ovhudqrl.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

4056 sc.exe
4300 sc.exe
4964 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2292	svchost.exe

pid	process
1448	ovhudqrl.exe

description	pid	process	target process
PID 1448 set thread context of 2292	1448	ovhudqrl.exe	svchost.exe

pid	process
4056	sc.exe
4300	sc.exe
4964	sc.exe

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

Processes:

netsh.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1668 3140 WerFault.exe 84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe
2928 1448 WerFault.exe ovhudqrl.exe

pid	pid_target	process	target process
1668	3140	WerFault.exe	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe
2928	1448	WerFault.exe	ovhudqrl.exe

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

Processes:

ovhudqrl.exesc.exesc.exenetsh.exesc.exesvchost.exe84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.execmd.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ovhudqrl.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exeovhudqrl.exe

description	pid	process	target process
PID 3140 wrote to memory of 2228	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	cmd.exe
PID 3140 wrote to memory of 2228	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	cmd.exe
PID 3140 wrote to memory of 2228	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	cmd.exe
PID 3140 wrote to memory of 2116	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	cmd.exe
PID 3140 wrote to memory of 2116	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	cmd.exe
PID 3140 wrote to memory of 2116	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	cmd.exe
PID 3140 wrote to memory of 4056	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	sc.exe
PID 3140 wrote to memory of 4056	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	sc.exe
PID 3140 wrote to memory of 4056	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	sc.exe
PID 3140 wrote to memory of 4300	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	sc.exe
PID 3140 wrote to memory of 4300	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	sc.exe
PID 3140 wrote to memory of 4300	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	sc.exe
PID 3140 wrote to memory of 4964	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	sc.exe
PID 3140 wrote to memory of 4964	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	sc.exe
PID 3140 wrote to memory of 4964	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	sc.exe
PID 3140 wrote to memory of 2152	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	netsh.exe
PID 3140 wrote to memory of 2152	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	netsh.exe
PID 3140 wrote to memory of 2152	3140	84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe	netsh.exe
PID 1448 wrote to memory of 2292	1448	ovhudqrl.exe	svchost.exe
PID 1448 wrote to memory of 2292	1448	ovhudqrl.exe	svchost.exe
PID 1448 wrote to memory of 2292	1448	ovhudqrl.exe	svchost.exe
PID 1448 wrote to memory of 2292	1448	ovhudqrl.exe	svchost.exe
PID 1448 wrote to memory of 2292	1448	ovhudqrl.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mafhtrak\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ovhudqrl.exe" C:\Windows\SysWOW64\mafhtrak\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mafhtrak binPath= "C:\Windows\SysWOW64\mafhtrak\ovhudqrl.exe /d\"C:\Users\Admin\AppData\Local\Temp\84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mafhtrak "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mafhtrak
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4964
- 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:2152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 1036
  2⤵
  - Program crash
  PID:1668

C:\Windows\SysWOW64\mafhtrak\ovhudqrl.exe
C:\Windows\SysWOW64\mafhtrak\ovhudqrl.exe /d"C:\Users\Admin\AppData\Local\Temp\84b615d0756f2dbbc12320ca3af1dbf0_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 532
  2⤵
  - Program crash
  PID:2928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3140 -ip 3140
1⤵
PID:1736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1448 -ip 1448
1⤵
PID:1256

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\ovhudqrl.exe

Filesize
14.1MB

MD5
cf7e2b46dcbe1d1e4d05cc2c7a447fd0

SHA1
2497c2cb7c8d5b0e7eeb8a1f9672e5e2ca111890

SHA256
48a267d148f6cde4fd9635d9ba383d8276709f533cdc8048673e3833f7972e3d

SHA512
d956ddf0a5d6ee51bc494326f30261f2e0527527608f96d7192e7333ba94143294dd6fc30fdc8dcd186a2441bb5740adc3a5a8caea13311c9d438e02a00b76aa

Download Submit
memory/1448-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1448-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1448-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1448-19-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2292-14-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/2292-16-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/2292-17-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/3140-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3140-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3140-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3140-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3140-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3140-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads