tofsee | f6e70b26765b49fd6cdf53f9daf841d8f482ce48eb1a18134dc0a65ebc1f574d

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 06:48

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General

Target

JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe
Size

11.0MB
MD5

c18ecc99377a256ddfd4b6d77ee1d24f
SHA1

1ed1af1cf166a964e232e6ac458b6c4af5ef0721
SHA256

f6e70b26765b49fd6cdf53f9daf841d8f482ce48eb1a18134dc0a65ebc1f574d
SHA512

440d63acf2d318ba3f16c7b5972c4bc86687b9077d268b3e34d03253ecc204c057046156894e69990427488e41e435273d27d2b6d30b4f1c7109552988596938
SSDEEP

6144:zrZQVnJzxj5nP76vk7wQ6udJm1lzvGCUWlnpj:fZ2zxj5nPmRQ6QgjzOCnl

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\tvncvfhp = "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
2556	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\tvncvfhp\ImagePath = "C:\\Windows\\SysWOW64\\tvncvfhp\\svowuweo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3012	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2816	svowuweo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 3012	2816	svowuweo.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2808	sc.exe
2908	sc.exe
2872	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_c18ecc99377a256ddfd4b6d77ee1d24f.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	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	svowuweo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2756	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	30
PID 2160 wrote to memory of 2756	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	30
PID 2160 wrote to memory of 2756	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	30
PID 2160 wrote to memory of 2756	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	30
PID 2160 wrote to memory of 2684	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	32
PID 2160 wrote to memory of 2684	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	32
PID 2160 wrote to memory of 2684	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	32
PID 2160 wrote to memory of 2684	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	32
PID 2160 wrote to memory of 2908	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	34
PID 2160 wrote to memory of 2908	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	34
PID 2160 wrote to memory of 2908	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	34
PID 2160 wrote to memory of 2908	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	34
PID 2160 wrote to memory of 2872	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	36
PID 2160 wrote to memory of 2872	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	36
PID 2160 wrote to memory of 2872	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	36
PID 2160 wrote to memory of 2872	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	36
PID 2160 wrote to memory of 2808	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	38
PID 2160 wrote to memory of 2808	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	38
PID 2160 wrote to memory of 2808	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	38
PID 2160 wrote to memory of 2808	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	38
PID 2160 wrote to memory of 2556	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	41
PID 2160 wrote to memory of 2556	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	41
PID 2160 wrote to memory of 2556	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	41
PID 2160 wrote to memory of 2556	2160	JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe	41
PID 2816 wrote to memory of 3012	2816	svowuweo.exe	43
PID 2816 wrote to memory of 3012	2816	svowuweo.exe	43
PID 2816 wrote to memory of 3012	2816	svowuweo.exe	43
PID 2816 wrote to memory of 3012	2816	svowuweo.exe	43
PID 2816 wrote to memory of 3012	2816	svowuweo.exe	43
PID 2816 wrote to memory of 3012	2816	svowuweo.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tvncvfhp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\svowuweo.exe" C:\Windows\SysWOW64\tvncvfhp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tvncvfhp binPath= "C:\Windows\SysWOW64\tvncvfhp\svowuweo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tvncvfhp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tvncvfhp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- 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:2556

C:\Windows\SysWOW64\tvncvfhp\svowuweo.exe
C:\Windows\SysWOW64\tvncvfhp\svowuweo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c18ecc99377a256ddfd4b6d77ee1d24f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2816
- 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:3012

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\svowuweo.exe

Filesize
13.0MB

MD5
09105275dad150d051162615221f6cf7

SHA1
b2db338d4ccad633caa18bd342cb578711c3e429

SHA256
e47322db62f18fa6dc721368f51404c4589029642b89e07bec79308c1b511878

SHA512
e181086404203559813af3748124f0751c68f046fa4264d3fe7abc6a480be14f593fe0703892be624d64b00755c1a5c1ad6919b8f16375e67f6372776cab830c

Download Submit
memory/2160-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2160-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2160-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2160-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2160-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2160-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/2816-17-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3012-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3012-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3012-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3012-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3012-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads