tofsee | 7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25/12/2024, 16:20

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General

Target

JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe
Size

286KB
MD5

96b93fb34c985b30f50a7735db22d92b
SHA1

eb448242fffcf293b089256666eee9e3dd0ceeb0
SHA256

7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f
SHA512

07765d1431359a6537fb9f706678eddb0009b693fa6139034e9f5c7b14a32ac0ddedd3c5598287ade40d866a60487f73f65f6aba0ddccdd18757f89096be51bb
SSDEEP

3072:YB0lRYwSYUx98sfyN79u9nlGlkD5WPOrcPI1Ze1+eZORI88EuSYG5RHZFS4Ez:YB6fSYUxEN7lkkPQcPI1NK+buSYG5RG

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\okxkowti = "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
2740	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\okxkowti\ImagePath = "C:\\Windows\\SysWOW64\\okxkowti\\elxktghb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2844	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2676	elxktghb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2676 set thread context of 2844	2676	elxktghb.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2568	sc.exe
2972	sc.exe
2788	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	svchost.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	elxktghb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1604 wrote to memory of 2892	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	30
PID 1604 wrote to memory of 2892	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	30
PID 1604 wrote to memory of 2892	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	30
PID 1604 wrote to memory of 2892	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	30
PID 1604 wrote to memory of 2828	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	32
PID 1604 wrote to memory of 2828	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	32
PID 1604 wrote to memory of 2828	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	32
PID 1604 wrote to memory of 2828	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	32
PID 1604 wrote to memory of 2568	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	34
PID 1604 wrote to memory of 2568	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	34
PID 1604 wrote to memory of 2568	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	34
PID 1604 wrote to memory of 2568	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	34
PID 1604 wrote to memory of 2972	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	36
PID 1604 wrote to memory of 2972	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	36
PID 1604 wrote to memory of 2972	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	36
PID 1604 wrote to memory of 2972	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	36
PID 1604 wrote to memory of 2788	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	38
PID 1604 wrote to memory of 2788	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	38
PID 1604 wrote to memory of 2788	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	38
PID 1604 wrote to memory of 2788	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	38
PID 1604 wrote to memory of 2740	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	41
PID 1604 wrote to memory of 2740	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	41
PID 1604 wrote to memory of 2740	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	41
PID 1604 wrote to memory of 2740	1604	JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe	41
PID 2676 wrote to memory of 2844	2676	elxktghb.exe	43
PID 2676 wrote to memory of 2844	2676	elxktghb.exe	43
PID 2676 wrote to memory of 2844	2676	elxktghb.exe	43
PID 2676 wrote to memory of 2844	2676	elxktghb.exe	43
PID 2676 wrote to memory of 2844	2676	elxktghb.exe	43
PID 2676 wrote to memory of 2844	2676	elxktghb.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\okxkowti\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\elxktghb.exe" C:\Windows\SysWOW64\okxkowti\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create okxkowti binPath= "C:\Windows\SysWOW64\okxkowti\elxktghb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2568
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description okxkowti "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start okxkowti
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- 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:2740

C:\Windows\SysWOW64\okxkowti\elxktghb.exe
C:\Windows\SysWOW64\okxkowti\elxktghb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7ff382e6f4a20363a66f99a385dfbb9782b8cd43eaf17cc23b50335d8c543f5f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- 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:2844

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\elxktghb.exe

Filesize
12.7MB

MD5
98b9eb9e6e33c83b571fd5b76d8ebe6b

SHA1
27d2716ec0f3015accb6e86d930599673a3abe86

SHA256
c0235ef5ff775f8e4ffe97672845c6abe26abf1547476c2100e58aad32363832

SHA512
c9a88ee447c5453372a530c30d4ae120442b8101fe5851dae6275b4ecd24dc6f7948eed48fca3266e3fd8368e2df0622645bcd4502154e9a700a95a47375f884

Download Submit
memory/1604-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1604-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1604-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1604-8-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1604-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1604-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2676-17-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2844-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2844-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2844-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2844-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2844-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads