tofsee | 68f68b471d96eba7489c49f0764a552bece2be9a88eea0f4caa7cf0b532f242e

General

Target

fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe
Size

13.4MB
MD5

fd38b33ef2c814530a6334068ede6c9e
SHA1

7db500679ab97ade3132968cefb5487341bfc7fa
SHA256

68f68b471d96eba7489c49f0764a552bece2be9a88eea0f4caa7cf0b532f242e
SHA512

018cb80f9bb521fd0367f47a43ab5f07d8d3ceb1c79a25dbfce82262aeea115eee6bba773c69c7de94cabc267ee1487d090a3afae0c9f638cd8a697b40fd17c0
SSDEEP

393216:qHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH:

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

194.61.3.129

defeatwax.ru

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\jcorfnti = "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

2688 netsh.exe

pid	process
2688	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\jcorfnti\ImagePath = "C:\\Windows\\SysWOW64\\jcorfnti\\gtyszwcf.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2740 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

gtyszwcf.exe

pid process

552 gtyszwcf.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

gtyszwcf.exe

description pid process target process

PID 552 set thread context of 2740 552 gtyszwcf.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

2576 sc.exe
2748 sc.exe
2292 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2740	svchost.exe

pid	process
552	gtyszwcf.exe

description	pid	process	target process
PID 552 set thread context of 2740	552	gtyszwcf.exe	svchost.exe

pid	process
2576	sc.exe
2748	sc.exe
2292	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exegtyszwcf.exe

description	pid	process	target process
PID 2512 wrote to memory of 1984	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	cmd.exe
PID 2512 wrote to memory of 1984	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	cmd.exe
PID 2512 wrote to memory of 1984	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	cmd.exe
PID 2512 wrote to memory of 1984	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	cmd.exe
PID 2512 wrote to memory of 1152	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	cmd.exe
PID 2512 wrote to memory of 1152	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	cmd.exe
PID 2512 wrote to memory of 1152	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	cmd.exe
PID 2512 wrote to memory of 1152	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	cmd.exe
PID 2512 wrote to memory of 2576	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2576	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2576	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2576	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2748	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2748	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2748	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2748	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2292	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2292	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2292	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2292	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	sc.exe
PID 2512 wrote to memory of 2688	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	netsh.exe
PID 2512 wrote to memory of 2688	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	netsh.exe
PID 2512 wrote to memory of 2688	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	netsh.exe
PID 2512 wrote to memory of 2688	2512	fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe	netsh.exe
PID 552 wrote to memory of 2740	552	gtyszwcf.exe	svchost.exe
PID 552 wrote to memory of 2740	552	gtyszwcf.exe	svchost.exe
PID 552 wrote to memory of 2740	552	gtyszwcf.exe	svchost.exe
PID 552 wrote to memory of 2740	552	gtyszwcf.exe	svchost.exe
PID 552 wrote to memory of 2740	552	gtyszwcf.exe	svchost.exe
PID 552 wrote to memory of 2740	552	gtyszwcf.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2512

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jcorfnti\
2⤵
PID:1984

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gtyszwcf.exe" C:\Windows\SysWOW64\jcorfnti\
2⤵
PID:1152

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create jcorfnti binPath= "C:\Windows\SysWOW64\jcorfnti\gtyszwcf.exe /d\"C:\Users\Admin\AppData\Local\Temp\fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2576

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description jcorfnti "wifi internet conection"
2⤵
- Launches sc.exe
PID:2748

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start jcorfnti
2⤵
- Launches sc.exe
PID:2292

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:2688

C:\Windows\SysWOW64\jcorfnti\gtyszwcf.exe
C:\Windows\SysWOW64\jcorfnti\gtyszwcf.exe /d"C:\Users\Admin\AppData\Local\Temp\fd38b33ef2c814530a6334068ede6c9e_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:552

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2740

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\gtyszwcf.exe

Filesize
10.7MB

MD5
5c5568f8c6e1b4d4f5243aa2801f4686

SHA1
3a4be705bb3cbf96d96f50422989993a09b13427

SHA256
5579126adf05adefda5f6fef7c464d10dc39edbddbe94fc6b8e5913d16c1beb6

SHA512
c7eec0dfcc89ea873bfb6ed28e7879439389933a6575dcd372b7b97b37244e4a05b7049c53d423baaafd363672e2389b8b3838f58114da7c5382c01238b977df

Download Submit
memory/552-10-0x0000000000B70000-0x0000000000C70000-memory.dmp

Filesize
1024KB

Download
memory/552-17-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/552-11-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/2512-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2512-8-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/2512-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2512-1-0x0000000000B20000-0x0000000000C20000-memory.dmp

Filesize
1024KB

Download
memory/2512-4-0x0000000000400000-0x00000000009AE000-memory.dmp

Filesize
5.7MB

Download
memory/2740-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads