tofsee | d6f43f31fce6ae40ebfad16c8c01d765a965a2aae9907ffcaefe293031356a75

General

Target

f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe
Size

14.7MB
MD5

f8518c38784e9b78cae4bc2b90bfc289
SHA1

1a58456029f8a0af14172b797150241a2565b8b9
SHA256

d6f43f31fce6ae40ebfad16c8c01d765a965a2aae9907ffcaefe293031356a75
SHA512

53489166d21faceae92bd7a48995b0fb03009b3b50cfaf05f0e03c78c372db2e810167fd406ab8cc1456e6874418bebb5b94e16450c61b86120e887a2cff3b44
SSDEEP

12288:khq8okPz+6/uWlQJVppppppppppppppppppppppppppppppppppppppppppppppB:dSz+R

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\hofjaose = "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

2676 netsh.exe

pid	process
2676	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\hofjaose\ImagePath = "C:\\Windows\\SysWOW64\\hofjaose\\dkwjsfga.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2512 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

dkwjsfga.exe

pid process

2688 dkwjsfga.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

dkwjsfga.exe

description pid process target process

PID 2688 set thread context of 2512 2688 dkwjsfga.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

2552 sc.exe
2648 sc.exe
2548 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2512	svchost.exe

pid	process
2688	dkwjsfga.exe

description	pid	process	target process
PID 2688 set thread context of 2512	2688	dkwjsfga.exe	svchost.exe

pid	process
2552	sc.exe
2648	sc.exe
2548	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exedkwjsfga.exe

description	pid	process	target process
PID 1676 wrote to memory of 2180	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	cmd.exe
PID 1676 wrote to memory of 2180	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	cmd.exe
PID 1676 wrote to memory of 2180	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	cmd.exe
PID 1676 wrote to memory of 2180	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	cmd.exe
PID 1676 wrote to memory of 2516	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	cmd.exe
PID 1676 wrote to memory of 2516	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	cmd.exe
PID 1676 wrote to memory of 2516	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	cmd.exe
PID 1676 wrote to memory of 2516	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	cmd.exe
PID 1676 wrote to memory of 2552	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2552	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2552	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2552	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2648	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2648	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2648	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2648	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2548	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2548	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2548	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2548	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	sc.exe
PID 1676 wrote to memory of 2676	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	netsh.exe
PID 1676 wrote to memory of 2676	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	netsh.exe
PID 1676 wrote to memory of 2676	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	netsh.exe
PID 1676 wrote to memory of 2676	1676	f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe	netsh.exe
PID 2688 wrote to memory of 2512	2688	dkwjsfga.exe	svchost.exe
PID 2688 wrote to memory of 2512	2688	dkwjsfga.exe	svchost.exe
PID 2688 wrote to memory of 2512	2688	dkwjsfga.exe	svchost.exe
PID 2688 wrote to memory of 2512	2688	dkwjsfga.exe	svchost.exe
PID 2688 wrote to memory of 2512	2688	dkwjsfga.exe	svchost.exe
PID 2688 wrote to memory of 2512	2688	dkwjsfga.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hofjaose\
  2⤵
  PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dkwjsfga.exe" C:\Windows\SysWOW64\hofjaose\
  2⤵
  PID:2516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hofjaose binPath= "C:\Windows\SysWOW64\hofjaose\dkwjsfga.exe /d\"C:\Users\Admin\AppData\Local\Temp\f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hofjaose "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hofjaose
  2⤵
  - Launches sc.exe
  PID:2548
- 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:2676

C:\Windows\SysWOW64\hofjaose\dkwjsfga.exe
C:\Windows\SysWOW64\hofjaose\dkwjsfga.exe /d"C:\Users\Admin\AppData\Local\Temp\f8518c38784e9b78cae4bc2b90bfc289_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2512

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\dkwjsfga.exe

Filesize
14.8MB

MD5
b6e50f63fcec6a9ffd99004454ea5688

SHA1
2f1dfd3409820a68b669947a8fca5ac3996a91b0

SHA256
0403ede80f7d645051001d049272e4ace20f665b37266575493abd659abf6185

SHA512
787096a8c5fa00552acefa3aa5f12381727255808694b79496f74be0b2ab76b6b1ce879abc258c169bb72bc0bdce0f805022c1a0852a425cff3b84395233c38e

Download Submit
memory/1676-8-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1676-1-0x0000000000940000-0x0000000000A40000-memory.dmp

Filesize
1024KB

Download
memory/1676-4-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1676-3-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2512-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2512-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2512-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2512-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2512-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2512-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2512-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2688-10-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2688-9-0x0000000000A30000-0x0000000000B30000-memory.dmp

Filesize
1024KB

Download
memory/2688-18-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads