tofsee | d882cf922ed49c5c66a23925d4c102a3ca158adc11dcdabd18c0439fd8bc787b

General

Target

2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe
Size

11.0MB
MD5

2205ae0550b6a87f8198eeb63ddd82e5
SHA1

a4998cdd345d3763d89860241e55d318053605bd
SHA256

d882cf922ed49c5c66a23925d4c102a3ca158adc11dcdabd18c0439fd8bc787b
SHA512

e072de29ba82eef07ec403c73062d2a6c066aeedcb9861e5c2cd55917a076f3c2b07d152164ec2bcc68a2b5b6d9d94928768392234bd0b37959e467f1e8a268b
SSDEEP

196608:gYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYX:gYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYX

Score

10^/10

tofsee discovery 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\jwczuprx = "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

2864 netsh.exe

pid	process
2864	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\jwczuprx\ImagePath = "C:\\Windows\\SysWOW64\\jwczuprx\\htauzfsa.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2716 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

htauzfsa.exe

pid process

2108 htauzfsa.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

htauzfsa.exe

description pid process target process

PID 2108 set thread context of 2716 2108 htauzfsa.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

2804 sc.exe
2916 sc.exe
2808 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2716	svchost.exe

pid	process
2108	htauzfsa.exe

description	pid	process	target process
PID 2108 set thread context of 2716	2108	htauzfsa.exe	svchost.exe

pid	process
2804	sc.exe
2916	sc.exe
2808	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 opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

cmd.exesc.exesc.exehtauzfsa.exesvchost.exe2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.execmd.exesc.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	htauzfsa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exehtauzfsa.exe

description	pid	process	target process
PID 1080 wrote to memory of 2544	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 1080 wrote to memory of 2544	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 1080 wrote to memory of 2544	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 1080 wrote to memory of 2544	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 1080 wrote to memory of 1912	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 1080 wrote to memory of 1912	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 1080 wrote to memory of 1912	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 1080 wrote to memory of 1912	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 1080 wrote to memory of 2804	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2804	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2804	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2804	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2916	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2916	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2916	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2916	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2808	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2808	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2808	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2808	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 1080 wrote to memory of 2864	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	netsh.exe
PID 1080 wrote to memory of 2864	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	netsh.exe
PID 1080 wrote to memory of 2864	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	netsh.exe
PID 1080 wrote to memory of 2864	1080	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	netsh.exe
PID 2108 wrote to memory of 2716	2108	htauzfsa.exe	svchost.exe
PID 2108 wrote to memory of 2716	2108	htauzfsa.exe	svchost.exe
PID 2108 wrote to memory of 2716	2108	htauzfsa.exe	svchost.exe
PID 2108 wrote to memory of 2716	2108	htauzfsa.exe	svchost.exe
PID 2108 wrote to memory of 2716	2108	htauzfsa.exe	svchost.exe
PID 2108 wrote to memory of 2716	2108	htauzfsa.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jwczuprx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\htauzfsa.exe" C:\Windows\SysWOW64\jwczuprx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jwczuprx binPath= "C:\Windows\SysWOW64\jwczuprx\htauzfsa.exe /d\"C:\Users\Admin\AppData\Local\Temp\2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jwczuprx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jwczuprx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- 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
  - System Location Discovery: System Language Discovery
  PID:2864

C:\Windows\SysWOW64\jwczuprx\htauzfsa.exe
C:\Windows\SysWOW64\jwczuprx\htauzfsa.exe /d"C:\Users\Admin\AppData\Local\Temp\2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2716

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.3MB

MD5
31c9e9e76cd50995b7a654cced8eff5c

SHA1
c6a0ff7e9827b2c2ff1b5ceb105b9decb0c5c55d

SHA256
4384802a1a6fd233a79626c630d6c865702f4ab6fb00be4eb5251d274d0caee3

SHA512
326cbc9aa8f777fa218efbc4d8d4b08b99dcf4381558e5e0aed3163c452476c6ec0e295ca675b106c846a3716ac655a9b025b08eb5fb46e911eb745be4e1c8ca

Download Submit
memory/1080-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1080-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1080-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/1080-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1080-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1080-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2108-15-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2716-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads