tofsee | 1f0454306dcfba27f8b800e1afaf802d1a88b92e2a096cab863fc26ed8fdc7b0

General

Target

f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe
Size

12.2MB
MD5

f3c8d3257218a2b7afc8a4c8e9c77d3f
SHA1

8667190ac0beb9d575f3ae8ca1690498d2ab0dd5
SHA256

1f0454306dcfba27f8b800e1afaf802d1a88b92e2a096cab863fc26ed8fdc7b0
SHA512

019a0d7dd5e4c3ef7c167e4186cadb39e9042dda7592a0550f3993f7336997ac342c76309857bdd1b28bce87ed03ad80cd000d4c53755640c3855c54c48c32bb
SSDEEP

6144:MgZQZcij488Ua7qY57rMzCo8AqtSRV+a1Q:LZij488UaWYMzB5HRV+g

Score

10^/10

tofsee evasion persistence 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\shfvdyfp = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2852 netsh.exe

pid	process
2852	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\shfvdyfp\ImagePath = "C:\\Windows\\SysWOW64\\shfvdyfp\\pncoiepf.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2584 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

pncoiepf.exe

pid process

2896 pncoiepf.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

pncoiepf.exe

description pid process target process

PID 2896 set thread context of 2584 2896 pncoiepf.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

2912 sc.exe
3024 sc.exe
2760 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2584	svchost.exe

pid	process
2896	pncoiepf.exe

description	pid	process	target process
PID 2896 set thread context of 2584	2896	pncoiepf.exe	svchost.exe

pid	process
2912	sc.exe
3024	sc.exe
2760	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exepncoiepf.exe

description	pid	process	target process
PID 2292 wrote to memory of 1628	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 2292 wrote to memory of 1628	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 2292 wrote to memory of 1628	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 2292 wrote to memory of 1628	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 2292 wrote to memory of 2836	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 2292 wrote to memory of 2836	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 2292 wrote to memory of 2836	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 2292 wrote to memory of 2836	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	cmd.exe
PID 2292 wrote to memory of 2760	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 2760	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 2760	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 2760	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 2912	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 2912	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 2912	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 2912	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 3024	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 3024	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 3024	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 3024	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	sc.exe
PID 2292 wrote to memory of 2852	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	netsh.exe
PID 2292 wrote to memory of 2852	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	netsh.exe
PID 2292 wrote to memory of 2852	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	netsh.exe
PID 2292 wrote to memory of 2852	2292	f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe	netsh.exe
PID 2896 wrote to memory of 2584	2896	pncoiepf.exe	svchost.exe
PID 2896 wrote to memory of 2584	2896	pncoiepf.exe	svchost.exe
PID 2896 wrote to memory of 2584	2896	pncoiepf.exe	svchost.exe
PID 2896 wrote to memory of 2584	2896	pncoiepf.exe	svchost.exe
PID 2896 wrote to memory of 2584	2896	pncoiepf.exe	svchost.exe
PID 2896 wrote to memory of 2584	2896	pncoiepf.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2292

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\shfvdyfp\
2⤵
PID:1628

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pncoiepf.exe" C:\Windows\SysWOW64\shfvdyfp\
2⤵
PID:2836

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create shfvdyfp binPath= "C:\Windows\SysWOW64\shfvdyfp\pncoiepf.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2760

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description shfvdyfp "wifi internet conection"
2⤵
- Launches sc.exe
PID:2912

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start shfvdyfp
2⤵
- Launches sc.exe
PID:3024

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
PID:2852

C:\Windows\SysWOW64\shfvdyfp\pncoiepf.exe
C:\Windows\SysWOW64\shfvdyfp\pncoiepf.exe /d"C:\Users\Admin\AppData\Local\Temp\f3c8d3257218a2b7afc8a4c8e9c77d3f_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2896

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\pncoiepf.exe
Filesize
14.3MB

MD5
fb57c2f572cd88313eac003261048c37

SHA1
839daf7b521c26eb8f202e06f953d4a5749951e6

SHA256
aa131d33859021241854f3588943f875c953b8155a27f1564de052ec652745a1

SHA512
b9ccbdf962cc1a8c9c343fc53b23a917dc527a111deb66fd4e1216d416510f6698205666e1ec8b1e0b8a4ed0cd3b3b5012db8ed287979a62d8802d94066ab6e1

Download Submit
memory/2292-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2292-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2292-3-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2292-7-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2292-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2584-12-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2584-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2584-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2584-19-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2584-20-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2584-21-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2896-11-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2896-10-0x00000000004C0000-0x00000000005C0000-memory.dmp

Filesize
1024KB

Download
memory/2896-17-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads