tofsee | 40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 13:07

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General

Target

JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe
Size

317KB
MD5

b2c22bb0daa9e99c491dec5c7553b779
SHA1

8649b29c65040ce271a9b7061756b43654e81422
SHA256

40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87
SHA512

1c633efa02f85489102a1924cc3ff60cfd7e4c55da49dc9603f2b651bde431c5be801aa3d33b9bcb93fed0e2c79194466edf0debbd55f4b4e43a049279f075c2
SSDEEP

3072:fpYUXsWrIhiyl41Fsfs1hev60WrxpzbgqruPhsJVggjcGkNIVqIbkY:fpYMXo4MSev60uzbgwuyr7ITsqz

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

patmushta.info

parubey.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\fpxknbaa = "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

pid	Process
2060	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\fpxknbaa\ImagePath = "C:\\Windows\\SysWOW64\\fpxknbaa\\tviovobo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2896	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2884	tviovobo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2884 set thread context of 2896	2884	tviovobo.exe	44

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2804	sc.exe
2488	sc.exe
3032	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	tviovobo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 1688	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	30
PID 2516 wrote to memory of 1688	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	30
PID 2516 wrote to memory of 1688	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	30
PID 2516 wrote to memory of 1688	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	30
PID 2516 wrote to memory of 1620	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	32
PID 2516 wrote to memory of 1620	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	32
PID 2516 wrote to memory of 1620	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	32
PID 2516 wrote to memory of 1620	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	32
PID 2516 wrote to memory of 2804	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	34
PID 2516 wrote to memory of 2804	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	34
PID 2516 wrote to memory of 2804	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	34
PID 2516 wrote to memory of 2804	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	34
PID 2516 wrote to memory of 2488	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	36
PID 2516 wrote to memory of 2488	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	36
PID 2516 wrote to memory of 2488	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	36
PID 2516 wrote to memory of 2488	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	36
PID 2516 wrote to memory of 3032	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	39
PID 2516 wrote to memory of 3032	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	39
PID 2516 wrote to memory of 3032	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	39
PID 2516 wrote to memory of 3032	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	39
PID 2516 wrote to memory of 2060	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	42
PID 2516 wrote to memory of 2060	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	42
PID 2516 wrote to memory of 2060	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	42
PID 2516 wrote to memory of 2060	2516	JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe	42
PID 2884 wrote to memory of 2896	2884	tviovobo.exe	44
PID 2884 wrote to memory of 2896	2884	tviovobo.exe	44
PID 2884 wrote to memory of 2896	2884	tviovobo.exe	44
PID 2884 wrote to memory of 2896	2884	tviovobo.exe	44
PID 2884 wrote to memory of 2896	2884	tviovobo.exe	44
PID 2884 wrote to memory of 2896	2884	tviovobo.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fpxknbaa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tviovobo.exe" C:\Windows\SysWOW64\fpxknbaa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fpxknbaa binPath= "C:\Windows\SysWOW64\fpxknbaa\tviovobo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.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 fpxknbaa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fpxknbaa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3032
- 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:2060

C:\Windows\SysWOW64\fpxknbaa\tviovobo.exe
C:\Windows\SysWOW64\fpxknbaa\tviovobo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf615661d60af60816ce6b8824621bb0c7989416133b4dece514828e047a87.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884
- 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:2896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
9.9MB

MD5
79ddb33492523fa5e81c6f84cd8b6b17

SHA1
a424c426c47876c721617638ea27e3f80ddd15a3

SHA256
c18727d64f93dd576bf561dc43236180d58d3135fae83b0aead61f61e57d9cc0

SHA512
373327eb79839906d61f26bc558b0ddcbf042a8d5c60e87ade520866b3f1e1b2ba63c4f0b751a156bb73f884fd03c6456b31d52a1cc2e48f0fb40f9a1949c2f6

Download Submit
memory/2516-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2516-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2516-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2516-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2516-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2516-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2516-6-0x0000000000400000-0x0000000002B84000-memory.dmp

Filesize
39.5MB

Download
memory/2884-15-0x0000000000400000-0x0000000002B84000-memory.dmp

Filesize
39.5MB

Download
memory/2896-13-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2896-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2896-10-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2896-16-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2896-17-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads