tofsee | 18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b

Analysis

max time kernel
146s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 06:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe
Size

146KB
MD5

23bdb6333269fdd7c286742e9964d04e
SHA1

043b6cea048f3e2bb09c60e6b7a732f7c4522720
SHA256

18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b
SHA512

b16321669cc825afd184394a9693d1c508b317a75af918e7dca507d290f5eb70d3b10fc76c9372463db1afd6b14655e0a5d7f8a2a7a13b943b80f50801fb14a3
SSDEEP

3072:leRcOvgBZ3qPqLigLEoFMHxZnxqfPSAaz:lhOIB0zGEbqfXU

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\rxywsts = "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
2924	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\rxywsts\ImagePath = "C:\\Windows\\SysWOW64\\rxywsts\\xecnsnbp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2936	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2900	xecnsnbp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2900 set thread context of 2936	2900	xecnsnbp.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1740	sc.exe
1748	sc.exe
3040	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xecnsnbp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 2164	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	30
PID 2444 wrote to memory of 2164	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	30
PID 2444 wrote to memory of 2164	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	30
PID 2444 wrote to memory of 2164	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	30
PID 2444 wrote to memory of 2336	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	32
PID 2444 wrote to memory of 2336	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	32
PID 2444 wrote to memory of 2336	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	32
PID 2444 wrote to memory of 2336	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	32
PID 2444 wrote to memory of 1740	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	34
PID 2444 wrote to memory of 1740	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	34
PID 2444 wrote to memory of 1740	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	34
PID 2444 wrote to memory of 1740	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	34
PID 2444 wrote to memory of 1748	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	36
PID 2444 wrote to memory of 1748	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	36
PID 2444 wrote to memory of 1748	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	36
PID 2444 wrote to memory of 1748	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	36
PID 2444 wrote to memory of 3040	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	38
PID 2444 wrote to memory of 3040	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	38
PID 2444 wrote to memory of 3040	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	38
PID 2444 wrote to memory of 3040	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	38
PID 2444 wrote to memory of 2924	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	41
PID 2444 wrote to memory of 2924	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	41
PID 2444 wrote to memory of 2924	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	41
PID 2444 wrote to memory of 2924	2444	JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe	41
PID 2900 wrote to memory of 2936	2900	xecnsnbp.exe	43
PID 2900 wrote to memory of 2936	2900	xecnsnbp.exe	43
PID 2900 wrote to memory of 2936	2900	xecnsnbp.exe	43
PID 2900 wrote to memory of 2936	2900	xecnsnbp.exe	43
PID 2900 wrote to memory of 2936	2900	xecnsnbp.exe	43
PID 2900 wrote to memory of 2936	2900	xecnsnbp.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rxywsts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xecnsnbp.exe" C:\Windows\SysWOW64\rxywsts\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rxywsts binPath= "C:\Windows\SysWOW64\rxywsts\xecnsnbp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rxywsts "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rxywsts
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3040
- 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:2924

C:\Windows\SysWOW64\rxywsts\xecnsnbp.exe
C:\Windows\SysWOW64\rxywsts\xecnsnbp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18dbdf8e5d41919296db9997b52a8292408d5c3d6d8194cc57909ee99338436b.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:2936

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\xecnsnbp.exe

Filesize
10.6MB

MD5
2689a2bf8919e658fa7abe91769b2ef4

SHA1
89e998bbdc880abd97f433d653fad2d8ab0574a5

SHA256
a4784c46c6a45f76a5ef9ca28c3d2e5d1ddf77cafb24b81cf03ed4022d129493

SHA512
83fcc7b58a63eb5762a792834f4152211252df9e6ed2a84cf18e0c92d1878b7933bfd93ab539bdaa3dbf83ba5c9b10896d106ab04f32e651c51825b0cdc8d1ad

Download Submit
memory/2444-8-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2444-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2444-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2444-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2444-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2444-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2900-17-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2936-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2936-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads