tofsee | 583db238176dff20ca429038c3d78b942d51bc5487e3a9d82e71e009204155ef

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 09:38

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General

Target

78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe
Size

289KB
MD5

78f40031a8fef95a5ed472ebc27d8e9c
SHA1

b00f3b3ec3477d5e79a4ce915492ac27a269d54f
SHA256

583db238176dff20ca429038c3d78b942d51bc5487e3a9d82e71e009204155ef
SHA512

42bf43ed0f9984c46f3bf9ce2b6c0a4c7c4d1a46af2b7926132e59c8b124890b13d4138efad6cc6feb9eaacf0a97ab481a4312c9af6e5bc8d1461d750a2d24ad
SSDEEP

6144:Fdp4xu6WtLc1rZqJL6ge9aOOhxxdeTr/ekI:yxMZL6gcwzxd6L

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\eloxjetu = "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
2608	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\eloxjetu\ImagePath = "C:\\Windows\\SysWOW64\\eloxjetu\\fmyluhic.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
264	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2572	fmyluhic.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2572 set thread context of 264	2572	fmyluhic.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2816	sc.exe
2580	sc.exe
2612	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fmyluhic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 656 wrote to memory of 2928	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	30
PID 656 wrote to memory of 2928	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	30
PID 656 wrote to memory of 2928	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	30
PID 656 wrote to memory of 2928	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	30
PID 656 wrote to memory of 2716	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	32
PID 656 wrote to memory of 2716	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	32
PID 656 wrote to memory of 2716	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	32
PID 656 wrote to memory of 2716	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	32
PID 656 wrote to memory of 2816	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	34
PID 656 wrote to memory of 2816	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	34
PID 656 wrote to memory of 2816	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	34
PID 656 wrote to memory of 2816	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	34
PID 656 wrote to memory of 2580	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	36
PID 656 wrote to memory of 2580	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	36
PID 656 wrote to memory of 2580	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	36
PID 656 wrote to memory of 2580	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	36
PID 656 wrote to memory of 2612	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	38
PID 656 wrote to memory of 2612	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	38
PID 656 wrote to memory of 2612	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	38
PID 656 wrote to memory of 2612	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	38
PID 656 wrote to memory of 2608	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	41
PID 656 wrote to memory of 2608	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	41
PID 656 wrote to memory of 2608	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	41
PID 656 wrote to memory of 2608	656	78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe	41
PID 2572 wrote to memory of 264	2572	fmyluhic.exe	43
PID 2572 wrote to memory of 264	2572	fmyluhic.exe	43
PID 2572 wrote to memory of 264	2572	fmyluhic.exe	43
PID 2572 wrote to memory of 264	2572	fmyluhic.exe	43
PID 2572 wrote to memory of 264	2572	fmyluhic.exe	43
PID 2572 wrote to memory of 264	2572	fmyluhic.exe	43

C:\Users\Admin\AppData\Local\Temp\78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eloxjetu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fmyluhic.exe" C:\Windows\SysWOW64\eloxjetu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eloxjetu binPath= "C:\Windows\SysWOW64\eloxjetu\fmyluhic.exe /d\"C:\Users\Admin\AppData\Local\Temp\78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eloxjetu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eloxjetu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2612
- 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:2608

C:\Windows\SysWOW64\eloxjetu\fmyluhic.exe
C:\Windows\SysWOW64\eloxjetu\fmyluhic.exe /d"C:\Users\Admin\AppData\Local\Temp\78f40031a8fef95a5ed472ebc27d8e9c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2572
- 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:264

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\fmyluhic.exe

Filesize
12.1MB

MD5
51e6c70f9ec1f373a278e174536153ce

SHA1
8b5cbad8a39b2e1002a2b0d39bcb2a3bd18713f4

SHA256
5bb19635a2959956eafdc4f2e4b161b748cb95594623d0937549b8db0da80880

SHA512
2810740edbf5862cacdd1df9263990e165b89f851763b43a6c16c04203762f417dfe097f1a487d3acfdcee4616224ea15d889ac80a03c275b72192b5cfbe405d

Download Submit
memory/264-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/264-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/264-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/264-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/264-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/656-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/656-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/656-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/656-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/656-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/656-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2572-15-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads