tofsee | 2cea1b1e165a19acb0c3a4c4c9a73798a20a6f43965863b29266a36f0f8aa49d

General

Target

6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe
Size

10.4MB
MD5

6315b5985b59592bcb0b76a12d842a53
SHA1

68e27e767670329db251d41fde2cd30a130b7b84
SHA256

2cea1b1e165a19acb0c3a4c4c9a73798a20a6f43965863b29266a36f0f8aa49d
SHA512

a14da4149fb7749dc3942009a34913b4dab5e9d0d83d01ca7d69c5f526cf33edab79fac083d2908b40b8d61ae9c5b8d48f382cacf8806fdf5c81dfe925084d42
SSDEEP

12288:Pp4/GC6zTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTzTT:PpeG

Score

10^/10

tofsee 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\pzrbbioi = "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

2760 netsh.exe

pid	process
2760	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\pzrbbioi\ImagePath = "C:\\Windows\\SysWOW64\\pzrbbioi\\lfbhscua.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2860 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

lfbhscua.exe

pid process

2848 lfbhscua.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

lfbhscua.exe

description pid process target process

PID 2848 set thread context of 2860 2848 lfbhscua.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

1384 sc.exe
2856 sc.exe
2804 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2860	svchost.exe

pid	process
2848	lfbhscua.exe

description	pid	process	target process
PID 2848 set thread context of 2860	2848	lfbhscua.exe	svchost.exe

pid	process
1384	sc.exe
2856	sc.exe
2804	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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exelfbhscua.exe

description	pid	process	target process
PID 2552 wrote to memory of 2252	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	cmd.exe
PID 2552 wrote to memory of 2252	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	cmd.exe
PID 2552 wrote to memory of 2252	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	cmd.exe
PID 2552 wrote to memory of 2252	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	cmd.exe
PID 2552 wrote to memory of 2564	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	cmd.exe
PID 2552 wrote to memory of 2564	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	cmd.exe
PID 2552 wrote to memory of 2564	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	cmd.exe
PID 2552 wrote to memory of 2564	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	cmd.exe
PID 2552 wrote to memory of 1384	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 1384	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 1384	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 1384	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 2856	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 2856	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 2856	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 2856	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 2804	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 2804	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 2804	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 2804	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	sc.exe
PID 2552 wrote to memory of 2760	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	netsh.exe
PID 2552 wrote to memory of 2760	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	netsh.exe
PID 2552 wrote to memory of 2760	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	netsh.exe
PID 2552 wrote to memory of 2760	2552	6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe	netsh.exe
PID 2848 wrote to memory of 2860	2848	lfbhscua.exe	svchost.exe
PID 2848 wrote to memory of 2860	2848	lfbhscua.exe	svchost.exe
PID 2848 wrote to memory of 2860	2848	lfbhscua.exe	svchost.exe
PID 2848 wrote to memory of 2860	2848	lfbhscua.exe	svchost.exe
PID 2848 wrote to memory of 2860	2848	lfbhscua.exe	svchost.exe
PID 2848 wrote to memory of 2860	2848	lfbhscua.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2552

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pzrbbioi\
2⤵
PID:2252

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lfbhscua.exe" C:\Windows\SysWOW64\pzrbbioi\
2⤵
PID:2564

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create pzrbbioi binPath= "C:\Windows\SysWOW64\pzrbbioi\lfbhscua.exe /d\"C:\Users\Admin\AppData\Local\Temp\6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1384

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description pzrbbioi "wifi internet conection"
2⤵
- Launches sc.exe
PID:2856

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start pzrbbioi
2⤵
- Launches sc.exe
PID:2804

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
PID:2760

C:\Windows\SysWOW64\pzrbbioi\lfbhscua.exe
C:\Windows\SysWOW64\pzrbbioi\lfbhscua.exe /d"C:\Users\Admin\AppData\Local\Temp\6315b5985b59592bcb0b76a12d842a53_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2848

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2860

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\lfbhscua.exe
Filesize
14.4MB

MD5
e96a3ab06e06cbd64eb56fe807edb38f

SHA1
c312e96cf2dff4892bf86ce7a98e52f42e0760cd

SHA256
8ee35b6446dd383af53d4003fbde721fd26f1fc9086b5c256d6a07799da1444a

SHA512
6c08ff3728c8cd938e216f5a31a87626393b859523cc41f07e70244044acdbf197febb5abd2b49bf3b2226257e822e9f90cf99b22135c8c2c22513a4f15fdc05

Download Submit
memory/2552-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2552-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2552-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2552-8-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2552-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2848-16-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2860-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2860-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads