tofsee | e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 19:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe
Size

284KB
MD5

75a99af8b7adc1c07232691950cad2e7
SHA1

b3cef4475010055358938a59e12c0ada3d132848
SHA256

e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd
SHA512

1f35004baa00e4f3cc07102adc1315d27ba69a2f3560d09dc040cf7eb332d2497d4198d5b9df7996f752f799892e900d486a85b01a3c47bd421f31ae8d730d56
SSDEEP

3072:yedoQKDodNgQQ/rHaTbw5VUXv3x0o3/yc7QkNaXurRq3+R7H8gF2yMzuFUkfEVYE:j6QKIBQEbw3wv/wGw+R7c2nM6F4VD

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.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\cfirspqz = "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
2720	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\cfirspqz\ImagePath = "C:\\Windows\\SysWOW64\\cfirspqz\\oamuufuc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	oamuufuc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 2988	2892	oamuufuc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
3064	sc.exe
2500	sc.exe
2832	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	sc.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oamuufuc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 3036	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	30
PID 632 wrote to memory of 3036	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	30
PID 632 wrote to memory of 3036	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	30
PID 632 wrote to memory of 3036	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	30
PID 632 wrote to memory of 2328	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	32
PID 632 wrote to memory of 2328	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	32
PID 632 wrote to memory of 2328	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	32
PID 632 wrote to memory of 2328	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	32
PID 632 wrote to memory of 3064	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	34
PID 632 wrote to memory of 3064	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	34
PID 632 wrote to memory of 3064	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	34
PID 632 wrote to memory of 3064	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	34
PID 632 wrote to memory of 2500	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	36
PID 632 wrote to memory of 2500	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	36
PID 632 wrote to memory of 2500	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	36
PID 632 wrote to memory of 2500	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	36
PID 632 wrote to memory of 2832	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	38
PID 632 wrote to memory of 2832	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	38
PID 632 wrote to memory of 2832	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	38
PID 632 wrote to memory of 2832	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	38
PID 632 wrote to memory of 2720	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	41
PID 632 wrote to memory of 2720	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	41
PID 632 wrote to memory of 2720	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	41
PID 632 wrote to memory of 2720	632	JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe	41
PID 2892 wrote to memory of 2988	2892	oamuufuc.exe	43
PID 2892 wrote to memory of 2988	2892	oamuufuc.exe	43
PID 2892 wrote to memory of 2988	2892	oamuufuc.exe	43
PID 2892 wrote to memory of 2988	2892	oamuufuc.exe	43
PID 2892 wrote to memory of 2988	2892	oamuufuc.exe	43
PID 2892 wrote to memory of 2988	2892	oamuufuc.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cfirspqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oamuufuc.exe" C:\Windows\SysWOW64\cfirspqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cfirspqz binPath= "C:\Windows\SysWOW64\cfirspqz\oamuufuc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cfirspqz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cfirspqz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- 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:2720

C:\Windows\SysWOW64\cfirspqz\oamuufuc.exe
C:\Windows\SysWOW64\cfirspqz\oamuufuc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8fd4d782183a9590a96686523c41f92639134637d61b570684b6129820b97fd.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892
- 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:2988

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.1MB

MD5
8efc972f1d3e0d293948bedd5ff5ec63

SHA1
eb4c74d9f84a610d05ea2649f789d115e018f443

SHA256
530f1453c3db8359dc8b161da336339292e3930e499e56a2c24094222decde2f

SHA512
8653347095677221db5a9e8a64b58d5cf47391eb83dfb956807c8abed406e443832214f83c612754206d4ee3e0e05701fbe79f1806626b6a57b61d62ae9700be

Download Submit
memory/632-8-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/632-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/632-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-10-0x0000000002C10000-0x0000000002D10000-memory.dmp

Filesize
1024KB

Download
memory/632-1-0x0000000002C10000-0x0000000002D10000-memory.dmp

Filesize
1024KB

Download
memory/632-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2892-18-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2988-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2988-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2988-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2988-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2988-19-0x00000000000C0000-0x00000000000D5000-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