tofsee | 1a9635e2c0826b41c605607cba1a1894d89f150b241904305125991c898329c0

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
10-01-2025 22:57

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General

Target

JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe
Size

11.9MB
MD5

f079c6c46c53a7a3204bd06eea7155dd
SHA1

19d3e8f4dfb84955bbeec82dc3ad0144fabc54e6
SHA256

1a9635e2c0826b41c605607cba1a1894d89f150b241904305125991c898329c0
SHA512

af24ceabbcf886f70d6b662a4ca7e1501c3d9db0173e7f445671d53d6d8bfb028a5078c621b8cb2f62f8b320c8bc6634dfaa9b8cd1d8db69aca590f927198698
SSDEEP

98304:gwfDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDr:gw

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\ufxvtkni = "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
2472	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\ufxvtkni\ImagePath = "C:\\Windows\\SysWOW64\\ufxvtkni\\qktdqtyk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2992	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2088	qktdqtyk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2088 set thread context of 2992	2088	qktdqtyk.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2888	sc.exe
2740	sc.exe
2848	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qktdqtyk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.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 2032 wrote to memory of 2564	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	28
PID 2032 wrote to memory of 2564	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	28
PID 2032 wrote to memory of 2564	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	28
PID 2032 wrote to memory of 2564	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	28
PID 2032 wrote to memory of 2632	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	30
PID 2032 wrote to memory of 2632	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	30
PID 2032 wrote to memory of 2632	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	30
PID 2032 wrote to memory of 2632	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	30
PID 2032 wrote to memory of 2888	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	32
PID 2032 wrote to memory of 2888	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	32
PID 2032 wrote to memory of 2888	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	32
PID 2032 wrote to memory of 2888	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	32
PID 2032 wrote to memory of 2740	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	34
PID 2032 wrote to memory of 2740	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	34
PID 2032 wrote to memory of 2740	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	34
PID 2032 wrote to memory of 2740	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	34
PID 2032 wrote to memory of 2848	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	36
PID 2032 wrote to memory of 2848	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	36
PID 2032 wrote to memory of 2848	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	36
PID 2032 wrote to memory of 2848	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	36
PID 2032 wrote to memory of 2472	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	39
PID 2032 wrote to memory of 2472	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	39
PID 2032 wrote to memory of 2472	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	39
PID 2032 wrote to memory of 2472	2032	JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe	39
PID 2088 wrote to memory of 2992	2088	qktdqtyk.exe	41
PID 2088 wrote to memory of 2992	2088	qktdqtyk.exe	41
PID 2088 wrote to memory of 2992	2088	qktdqtyk.exe	41
PID 2088 wrote to memory of 2992	2088	qktdqtyk.exe	41
PID 2088 wrote to memory of 2992	2088	qktdqtyk.exe	41
PID 2088 wrote to memory of 2992	2088	qktdqtyk.exe	41

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ufxvtkni\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qktdqtyk.exe" C:\Windows\SysWOW64\ufxvtkni\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2632
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ufxvtkni binPath= "C:\Windows\SysWOW64\ufxvtkni\qktdqtyk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ufxvtkni "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ufxvtkni
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- 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:2472

C:\Windows\SysWOW64\ufxvtkni\qktdqtyk.exe
C:\Windows\SysWOW64\ufxvtkni\qktdqtyk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f079c6c46c53a7a3204bd06eea7155dd.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2088
- 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:2992

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\qktdqtyk.exe

Filesize
14.2MB

MD5
e9c7ce76ffa0ee37f3d8b5a27c5aff9f

SHA1
4835ddab6fd33de4a4e6661d3994711923b40824

SHA256
8c01b8548cae82a54f65cb9541c1500ea29a13985dc8af85ff13c83ab297a1db

SHA512
1178e6550665ed7c1dbe9e31b22ac6932c553b4615c8880a485c332c6690c7e6fd0b425d1a49724c6ccc2bd7ce955aa7ca8e7864740f0f10602cdce507ebb05d

Download Submit
memory/2032-8-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2032-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2032-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2032-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2032-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2032-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2088-15-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2992-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2992-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2992-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2992-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2992-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads