tofsee | bfd23b4120f227dfbc5870e08af77db419cd90e3527ca6bb6c31683458602fa8

General

Target

36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe
Size

11.8MB
MD5

36d5664fd330c5e6cb0d7e31d8e0513f
SHA1

1917c1eba422f9d2076c072162d63f46ecfa5222
SHA256

bfd23b4120f227dfbc5870e08af77db419cd90e3527ca6bb6c31683458602fa8
SHA512

528401bc0cd09b9667d47b973bfa8cc43e727f98eaf69e278efa6ecb3c103aae38dc51a27efb68d7d6b4d8374b38ca97df483e9c6d82e157fa1e9e38ac7eac64
SSDEEP

24576:ZRQITb1qsssssssssssssssssssssssssssssssssssssssssssssssssssssss/:N

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\kfnjbpje = "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

3016 netsh.exe

pid	process
3016	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\kfnjbpje\ImagePath = "C:\\Windows\\SysWOW64\\kfnjbpje\\rdpxxixf.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2568 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

rdpxxixf.exe

pid process

1532 rdpxxixf.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

rdpxxixf.exe

description pid process target process

PID 1532 set thread context of 2568 1532 rdpxxixf.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

2988 sc.exe
3052 sc.exe
2888 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2568	svchost.exe

pid	process
1532	rdpxxixf.exe

description	pid	process	target process
PID 1532 set thread context of 2568	1532	rdpxxixf.exe	svchost.exe

pid	process
2988	sc.exe
3052	sc.exe
2888	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exerdpxxixf.exe

description	pid	process	target process
PID 2240 wrote to memory of 1724	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	cmd.exe
PID 2240 wrote to memory of 1724	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	cmd.exe
PID 2240 wrote to memory of 1724	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	cmd.exe
PID 2240 wrote to memory of 1724	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	cmd.exe
PID 2240 wrote to memory of 2212	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	cmd.exe
PID 2240 wrote to memory of 2212	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	cmd.exe
PID 2240 wrote to memory of 2212	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	cmd.exe
PID 2240 wrote to memory of 2212	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	cmd.exe
PID 2240 wrote to memory of 2888	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 2888	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 2888	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 2888	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 2988	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 2988	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 2988	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 2988	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 3052	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 3052	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 3052	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 3052	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	sc.exe
PID 2240 wrote to memory of 3016	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	netsh.exe
PID 2240 wrote to memory of 3016	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	netsh.exe
PID 2240 wrote to memory of 3016	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	netsh.exe
PID 2240 wrote to memory of 3016	2240	36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe	netsh.exe
PID 1532 wrote to memory of 2568	1532	rdpxxixf.exe	svchost.exe
PID 1532 wrote to memory of 2568	1532	rdpxxixf.exe	svchost.exe
PID 1532 wrote to memory of 2568	1532	rdpxxixf.exe	svchost.exe
PID 1532 wrote to memory of 2568	1532	rdpxxixf.exe	svchost.exe
PID 1532 wrote to memory of 2568	1532	rdpxxixf.exe	svchost.exe
PID 1532 wrote to memory of 2568	1532	rdpxxixf.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2240

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kfnjbpje\
2⤵
PID:1724

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rdpxxixf.exe" C:\Windows\SysWOW64\kfnjbpje\
2⤵
PID:2212

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create kfnjbpje binPath= "C:\Windows\SysWOW64\kfnjbpje\rdpxxixf.exe /d\"C:\Users\Admin\AppData\Local\Temp\36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2888

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description kfnjbpje "wifi internet conection"
2⤵
- Launches sc.exe
PID:2988

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start kfnjbpje
2⤵
- Launches sc.exe
PID:3052

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:3016

C:\Windows\SysWOW64\kfnjbpje\rdpxxixf.exe
C:\Windows\SysWOW64\kfnjbpje\rdpxxixf.exe /d"C:\Users\Admin\AppData\Local\Temp\36d5664fd330c5e6cb0d7e31d8e0513f_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1532

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2568

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\rdpxxixf.exe
Filesize
13.2MB

MD5
03a6312f93849dee2eac2a91e36ddfc9

SHA1
3e0923f4a7c55859369a4ad4c24dafc43e146323

SHA256
2a066dfd1c6121e00902317c09b6ef0f8c81124f2bd6398e90fec639f391d961

SHA512
d5195d5594a896f4eb1a311897a912bf419606b7bbde3c467566371e6f800931bbb5b54ad35d628856b8994bf2a7b17ade1112698ec726d409a4d076ae1d4fcf

Download Submit
memory/1532-16-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2240-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2240-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2240-8-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2240-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2240-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2240-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2568-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads