tofsee | eb63b5df3fa1a0f2c6241e26e3269cf5319180d392819110d765ce5d735d1557

General

Target

ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe
Size

12.6MB
MD5

ee32ada5e5b8578f25d6f2b0762d2f28
SHA1

d7cf1680da472199f301dcc5758c95b0c11820fc
SHA256

eb63b5df3fa1a0f2c6241e26e3269cf5319180d392819110d765ce5d735d1557
SHA512

e96ff40d526a55b0df2499dbc2df4f38f0ef5fd36440c95f939646c290410f9c95f783733e8e44d17ffc09cf52af3ed622ed87123cc7d3bee4797fe4583e613d
SSDEEP

393216:N88888888888888888888888888888888888888888888888888888888888888M:

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\uckcnkmk = "0"	svchost.exe

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

2884 netsh.exe

pid	process
2884	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\uckcnkmk\ImagePath = "C:\\Windows\\SysWOW64\\uckcnkmk\\tnwgtwbn.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2912 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tnwgtwbn.exe

pid process

2824 tnwgtwbn.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tnwgtwbn.exe

description pid process target process

PID 2824 set thread context of 2912 2824 tnwgtwbn.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

2044 sc.exe
2708 sc.exe
2720 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2912	svchost.exe

pid	process
2824	tnwgtwbn.exe

description	pid	process	target process
PID 2824 set thread context of 2912	2824	tnwgtwbn.exe	svchost.exe

pid	process
2044	sc.exe
2708	sc.exe
2720	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 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

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:

cmd.exesc.exeee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exesc.exesc.exenetsh.exetnwgtwbn.exesvchost.execmd.exe

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	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.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	tnwgtwbn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exetnwgtwbn.exe

description	pid	process	target process
PID 372 wrote to memory of 2916	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	cmd.exe
PID 372 wrote to memory of 2916	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	cmd.exe
PID 372 wrote to memory of 2916	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	cmd.exe
PID 372 wrote to memory of 2916	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	cmd.exe
PID 372 wrote to memory of 2176	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	cmd.exe
PID 372 wrote to memory of 2176	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	cmd.exe
PID 372 wrote to memory of 2176	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	cmd.exe
PID 372 wrote to memory of 2176	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	cmd.exe
PID 372 wrote to memory of 2044	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2044	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2044	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2044	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2708	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2708	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2708	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2708	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2720	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2720	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2720	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2720	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	sc.exe
PID 372 wrote to memory of 2884	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	netsh.exe
PID 372 wrote to memory of 2884	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	netsh.exe
PID 372 wrote to memory of 2884	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	netsh.exe
PID 372 wrote to memory of 2884	372	ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe	netsh.exe
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	svchost.exe
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	svchost.exe
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	svchost.exe
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	svchost.exe
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	svchost.exe
PID 2824 wrote to memory of 2912	2824	tnwgtwbn.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:372

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uckcnkmk\
2⤵
- System Location Discovery: System Language Discovery
PID:2916

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tnwgtwbn.exe" C:\Windows\SysWOW64\uckcnkmk\
2⤵
- System Location Discovery: System Language Discovery
PID:2176

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create uckcnkmk binPath= "C:\Windows\SysWOW64\uckcnkmk\tnwgtwbn.exe /d\"C:\Users\Admin\AppData\Local\Temp\ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2044

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description uckcnkmk "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2708

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start uckcnkmk
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2720

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:2884

C:\Windows\SysWOW64\uckcnkmk\tnwgtwbn.exe
C:\Windows\SysWOW64\uckcnkmk\tnwgtwbn.exe /d"C:\Users\Admin\AppData\Local\Temp\ee32ada5e5b8578f25d6f2b0762d2f28_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2912

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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\tnwgtwbn.exe

Filesize
12.8MB

MD5
2886a1557a2b9cae80678753ba2cf2ee

SHA1
399df472740c8f633418ac30a1cd44aa3c25030f

SHA256
107339926b441855fb0365988a0a122922538413e1547b8aab4c4fc61d3b69b4

SHA512
3aabdcdeaf3408b96e9b9fbf44aeb47a2b3fe51b07e3be56919f07b498ce82723fc86d57c09288b01703235c3d48f18099c5c8ebcd0bdbbcbf48ca4a8e27000f

Download Submit
memory/372-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/372-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/372-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/372-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/372-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/372-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2824-17-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2912-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads