tofsee | 74bf590e3f287fa0ba08de8a862b0a4a6e52b8288d86cc3b0bde13c7592006f2

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 23:47

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General

Target

JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe
Size

11.0MB
MD5

b35702eac2cbff5e9bdd048ee8726a57
SHA1

8c4b9cf7ee254b511e84b6606105f5bbf6bcc848
SHA256

74bf590e3f287fa0ba08de8a862b0a4a6e52b8288d86cc3b0bde13c7592006f2
SHA512

e96d7d6632d94b1355d6b539d68e22f37d427e30ac32269991533a4202ad315dd3b1da5e3162de817d7602c924ce9f2444115ffc8c2c6104a7b28444b18f46c2
SSDEEP

49152:wNxtFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFR:W

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\spfxsutn = "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
2468	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\spfxsutn\ImagePath = "C:\\Windows\\SysWOW64\\spfxsutn\\vocogacp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2688	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2900	vocogacp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2900 set thread context of 2688	2900	vocogacp.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2724	sc.exe
2880	sc.exe
2736	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_b35702eac2cbff5e9bdd048ee8726a57.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	vocogacp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2036	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	31
PID 2356 wrote to memory of 2036	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	31
PID 2356 wrote to memory of 2036	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	31
PID 2356 wrote to memory of 2036	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	31
PID 2356 wrote to memory of 596	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	33
PID 2356 wrote to memory of 596	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	33
PID 2356 wrote to memory of 596	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	33
PID 2356 wrote to memory of 596	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	33
PID 2356 wrote to memory of 2724	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	35
PID 2356 wrote to memory of 2724	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	35
PID 2356 wrote to memory of 2724	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	35
PID 2356 wrote to memory of 2724	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	35
PID 2356 wrote to memory of 2880	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	37
PID 2356 wrote to memory of 2880	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	37
PID 2356 wrote to memory of 2880	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	37
PID 2356 wrote to memory of 2880	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	37
PID 2356 wrote to memory of 2736	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	39
PID 2356 wrote to memory of 2736	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	39
PID 2356 wrote to memory of 2736	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	39
PID 2356 wrote to memory of 2736	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	39
PID 2356 wrote to memory of 2468	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	42
PID 2356 wrote to memory of 2468	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	42
PID 2356 wrote to memory of 2468	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	42
PID 2356 wrote to memory of 2468	2356	JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe	42
PID 2900 wrote to memory of 2688	2900	vocogacp.exe	44
PID 2900 wrote to memory of 2688	2900	vocogacp.exe	44
PID 2900 wrote to memory of 2688	2900	vocogacp.exe	44
PID 2900 wrote to memory of 2688	2900	vocogacp.exe	44
PID 2900 wrote to memory of 2688	2900	vocogacp.exe	44
PID 2900 wrote to memory of 2688	2900	vocogacp.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\spfxsutn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vocogacp.exe" C:\Windows\SysWOW64\spfxsutn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:596
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create spfxsutn binPath= "C:\Windows\SysWOW64\spfxsutn\vocogacp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description spfxsutn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start spfxsutn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- 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:2468

C:\Windows\SysWOW64\spfxsutn\vocogacp.exe
C:\Windows\SysWOW64\spfxsutn\vocogacp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b35702eac2cbff5e9bdd048ee8726a57.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2900
- 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:2688

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\vocogacp.exe

Filesize
14.0MB

MD5
6bae24e795df10ded5e712bfc33248ce

SHA1
39a37f31ed2016e463d9edb2a5953e689dd4173f

SHA256
bce9bc7ca4920d59ba493411890400c63d750341125909da11371e0dc65ea1b4

SHA512
598e6e372e243b809267a8704ac1c2bff1871c777a014d5762a286a86a190c8a5da691946f3cbd3b62cd71df1137d56e769a61164d9742c2dda0715f3e6217a9

Download Submit
memory/2356-7-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2356-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2356-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2356-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2356-8-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2356-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2356-6-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download
memory/2688-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2688-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2688-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2688-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-16-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads