tofsee | ee1eb769f85ba3319c87eccf1dda1ae11bf5e63edd9a96be26b3356753d055e1

General

Target

0193889a235929497ee1d5971dae0697_JaffaCakes118.exe
Size

12.0MB
MD5

0193889a235929497ee1d5971dae0697
SHA1

cd26bd7c8a64af37899b120113bbc40aa11a7ad4
SHA256

ee1eb769f85ba3319c87eccf1dda1ae11bf5e63edd9a96be26b3356753d055e1
SHA512

8efc9de2f6dad7d29a027c75b964184b8c6a64b83ca18082a93afa2c708db199142d11047088e1dcaaf5d042395fd00ee52f43e23972e3ae9a8c8ff17248984a
SSDEEP

196608:yX6666666666666666666666666666666666666666666666666666666666666+:y

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\rxlvyrro = "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

2560 netsh.exe

pid	process
2560	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\rxlvyrro\ImagePath = "C:\\Windows\\SysWOW64\\rxlvyrro\\iubvagtb.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3020 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

iubvagtb.exe

pid process

1312 iubvagtb.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

iubvagtb.exe

description pid process target process

PID 1312 set thread context of 3020 1312 iubvagtb.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

2828 sc.exe
2688 sc.exe
2384 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3020	svchost.exe

pid	process
1312	iubvagtb.exe

description	pid	process	target process
PID 1312 set thread context of 3020	1312	iubvagtb.exe	svchost.exe

pid	process
2828	sc.exe
2688	sc.exe
2384	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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:

sc.exesc.exeiubvagtb.execmd.exesc.exenetsh.exesvchost.exe0193889a235929497ee1d5971dae0697_JaffaCakes118.execmd.exe

description	ioc	process
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	iubvagtb.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

0193889a235929497ee1d5971dae0697_JaffaCakes118.exeiubvagtb.exe

description	pid	process	target process
PID 2644 wrote to memory of 2660	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	cmd.exe
PID 2644 wrote to memory of 2660	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	cmd.exe
PID 2644 wrote to memory of 2660	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	cmd.exe
PID 2644 wrote to memory of 2660	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	cmd.exe
PID 2644 wrote to memory of 2704	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	cmd.exe
PID 2644 wrote to memory of 2704	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	cmd.exe
PID 2644 wrote to memory of 2704	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	cmd.exe
PID 2644 wrote to memory of 2704	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	cmd.exe
PID 2644 wrote to memory of 2384	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2384	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2384	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2384	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2828	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2828	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2828	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2828	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2688	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2688	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2688	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2688	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	sc.exe
PID 2644 wrote to memory of 2560	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	netsh.exe
PID 2644 wrote to memory of 2560	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	netsh.exe
PID 2644 wrote to memory of 2560	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	netsh.exe
PID 2644 wrote to memory of 2560	2644	0193889a235929497ee1d5971dae0697_JaffaCakes118.exe	netsh.exe
PID 1312 wrote to memory of 3020	1312	iubvagtb.exe	svchost.exe
PID 1312 wrote to memory of 3020	1312	iubvagtb.exe	svchost.exe
PID 1312 wrote to memory of 3020	1312	iubvagtb.exe	svchost.exe
PID 1312 wrote to memory of 3020	1312	iubvagtb.exe	svchost.exe
PID 1312 wrote to memory of 3020	1312	iubvagtb.exe	svchost.exe
PID 1312 wrote to memory of 3020	1312	iubvagtb.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\0193889a235929497ee1d5971dae0697_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0193889a235929497ee1d5971dae0697_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rxlvyrro\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iubvagtb.exe" C:\Windows\SysWOW64\rxlvyrro\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rxlvyrro binPath= "C:\Windows\SysWOW64\rxlvyrro\iubvagtb.exe /d\"C:\Users\Admin\AppData\Local\Temp\0193889a235929497ee1d5971dae0697_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rxlvyrro "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rxlvyrro
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- 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:2560

C:\Windows\SysWOW64\rxlvyrro\iubvagtb.exe
C:\Windows\SysWOW64\rxlvyrro\iubvagtb.exe /d"C:\Users\Admin\AppData\Local\Temp\0193889a235929497ee1d5971dae0697_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1312
- 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:3020

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11.1MB

MD5
176c705e12ad4f7e020bb2e9be4180dc

SHA1
0f3cc6254fe3567b207260813df734858a1ba9db

SHA256
ff8266af1cc9b7cfb015d8f251d19b8ca1d1302c8abe5c22870089288c2b7521

SHA512
af70ee25dd8606f02fa868650f863c5b8cfd560befdb7392528f27667ae485298c513f2678ddb5ed1247fa1ea92f7e6ebf9091616ee97a62fe09c7ab2dbb1aec

Download Submit
memory/1312-18-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2644-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2644-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2644-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2644-10-0x0000000000A00000-0x0000000000B00000-memory.dmp

Filesize
1024KB

Download
memory/2644-1-0x0000000000A00000-0x0000000000B00000-memory.dmp

Filesize
1024KB

Download
memory/2644-8-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2644-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3020-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3020-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3020-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3020-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads