tofsee | 53334a426525497e8cb6ffff44e8b29cbfda8b1e6bfa3041604b272211b2f6e5

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
05-12-2024 13:20

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General

Target

c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe
Size

13.4MB
MD5

c7e3c29a30cffbdc9a1c8b20f8d49ba0
SHA1

196e02f66bd9281f79e364bd553926dff2a36559
SHA256

53334a426525497e8cb6ffff44e8b29cbfda8b1e6bfa3041604b272211b2f6e5
SHA512

5483e6be0c230aea680abfbeb2751e529fb77f82e7507ab9e8c56a13ce859df18f7f2b2686a3314728fb5eb6b2e9f81306b4fb8cce4bf4f4d12c27baed0024d3
SSDEEP

24576:sE2llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllB:sE

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\hclkheb = "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
2728	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\hclkheb\ImagePath = "C:\\Windows\\SysWOW64\\hclkheb\\ywlxrnyo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2796	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	ywlxrnyo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 2796	2856	ywlxrnyo.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2280	sc.exe
1848	sc.exe
2776	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	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.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	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	ywlxrnyo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2052	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	31
PID 2360 wrote to memory of 2052	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	31
PID 2360 wrote to memory of 2052	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	31
PID 2360 wrote to memory of 2052	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	31
PID 2360 wrote to memory of 2208	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	33
PID 2360 wrote to memory of 2208	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	33
PID 2360 wrote to memory of 2208	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	33
PID 2360 wrote to memory of 2208	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	33
PID 2360 wrote to memory of 2280	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	35
PID 2360 wrote to memory of 2280	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	35
PID 2360 wrote to memory of 2280	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	35
PID 2360 wrote to memory of 2280	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	35
PID 2360 wrote to memory of 1848	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	37
PID 2360 wrote to memory of 1848	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	37
PID 2360 wrote to memory of 1848	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	37
PID 2360 wrote to memory of 1848	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	37
PID 2360 wrote to memory of 2776	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	39
PID 2360 wrote to memory of 2776	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	39
PID 2360 wrote to memory of 2776	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	39
PID 2360 wrote to memory of 2776	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	39
PID 2360 wrote to memory of 2728	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	42
PID 2360 wrote to memory of 2728	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	42
PID 2360 wrote to memory of 2728	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	42
PID 2360 wrote to memory of 2728	2360	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	42
PID 2856 wrote to memory of 2796	2856	ywlxrnyo.exe	44
PID 2856 wrote to memory of 2796	2856	ywlxrnyo.exe	44
PID 2856 wrote to memory of 2796	2856	ywlxrnyo.exe	44
PID 2856 wrote to memory of 2796	2856	ywlxrnyo.exe	44
PID 2856 wrote to memory of 2796	2856	ywlxrnyo.exe	44
PID 2856 wrote to memory of 2796	2856	ywlxrnyo.exe	44

C:\Users\Admin\AppData\Local\Temp\c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hclkheb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ywlxrnyo.exe" C:\Windows\SysWOW64\hclkheb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hclkheb binPath= "C:\Windows\SysWOW64\hclkheb\ywlxrnyo.exe /d\"C:\Users\Admin\AppData\Local\Temp\c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hclkheb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hclkheb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- 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:2728

C:\Windows\SysWOW64\hclkheb\ywlxrnyo.exe
C:\Windows\SysWOW64\hclkheb\ywlxrnyo.exe /d"C:\Users\Admin\AppData\Local\Temp\c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- 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:2796

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\ywlxrnyo.exe

Filesize
14.4MB

MD5
0d42998805befacee120d5d90eeb7732

SHA1
27b09cec333bd488956c55411b043f1997cf59f8

SHA256
a990ed23d9b53a3b9a6fa48153a5ffec95d7a2764d93e24b600a3f30ad0680b0

SHA512
c51ccdd4aa9a204fde7457c0b6ebeff7f6270a284cbfab1c07d36fbdb81b984387ba1423c9f3852f6b6aeb246be305f12896b12bf7f28c79ee091b369fb41583

Download Submit
memory/2360-8-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2360-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2360-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2360-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2360-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2360-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2796-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2796-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2796-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-17-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2796-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2856-15-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads