tofsee | 89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1

Analysis

max time kernel
144s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 01:27

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General

Target

JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe
Size

284KB
MD5

523df49ca016ddcba85d75ea51e13cc1
SHA1

360097a175edff477f95ac76e9a9e08b8ad126dd
SHA256

89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1
SHA512

fa3f3af8990d15bb4a4be4b2929e44a6da0680dcd33c1acf332f17990ad3078a9dad3de7cfddfeb0edeb53429b97644264d40a4370bd3f7ccc7a982f8363878b
SSDEEP

3072:bfwmteWVHxy2D086b1/Z3RdCa9w8k9S20ke93/eNN4gVz/nyYKzLZVZYl6ljp5T1:bwmkGVD0t1/ZBdX4lRVWLZVylSpdtT

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\kztopmdx = "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
2788	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\kztopmdx\ImagePath = "C:\\Windows\\SysWOW64\\kztopmdx\\jvcwbhuc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2632	jvcwbhuc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2632 set thread context of 2820	2632	jvcwbhuc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2772	sc.exe
2864	sc.exe
2860	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	jvcwbhuc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 2100	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	30
PID 2544 wrote to memory of 2100	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	30
PID 2544 wrote to memory of 2100	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	30
PID 2544 wrote to memory of 2100	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	30
PID 2544 wrote to memory of 2720	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	32
PID 2544 wrote to memory of 2720	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	32
PID 2544 wrote to memory of 2720	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	32
PID 2544 wrote to memory of 2720	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	32
PID 2544 wrote to memory of 2772	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	34
PID 2544 wrote to memory of 2772	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	34
PID 2544 wrote to memory of 2772	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	34
PID 2544 wrote to memory of 2772	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	34
PID 2544 wrote to memory of 2864	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	36
PID 2544 wrote to memory of 2864	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	36
PID 2544 wrote to memory of 2864	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	36
PID 2544 wrote to memory of 2864	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	36
PID 2544 wrote to memory of 2860	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	38
PID 2544 wrote to memory of 2860	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	38
PID 2544 wrote to memory of 2860	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	38
PID 2544 wrote to memory of 2860	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	38
PID 2544 wrote to memory of 2788	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	41
PID 2544 wrote to memory of 2788	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	41
PID 2544 wrote to memory of 2788	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	41
PID 2544 wrote to memory of 2788	2544	JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe	41
PID 2632 wrote to memory of 2820	2632	jvcwbhuc.exe	43
PID 2632 wrote to memory of 2820	2632	jvcwbhuc.exe	43
PID 2632 wrote to memory of 2820	2632	jvcwbhuc.exe	43
PID 2632 wrote to memory of 2820	2632	jvcwbhuc.exe	43
PID 2632 wrote to memory of 2820	2632	jvcwbhuc.exe	43
PID 2632 wrote to memory of 2820	2632	jvcwbhuc.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kztopmdx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jvcwbhuc.exe" C:\Windows\SysWOW64\kztopmdx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kztopmdx binPath= "C:\Windows\SysWOW64\kztopmdx\jvcwbhuc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kztopmdx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kztopmdx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2860
- 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:2788

C:\Windows\SysWOW64\kztopmdx\jvcwbhuc.exe
C:\Windows\SysWOW64\kztopmdx\jvcwbhuc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89f6d07d84dababb976153bafeb830f97341b6259f9330800aade067af52c5c1.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2632
- 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:2820

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\jvcwbhuc.exe

Filesize
12.8MB

MD5
bb41c6ed7759ba21eb5341471a27fbde

SHA1
2dce7051506589865907d7dc90384e0c57403b31

SHA256
be1da209bd343cb5cd906f7f574502726ce43dcab1d219c9c0a75f152cb0dcb9

SHA512
a8d4d7eb02316128d371c8ebce3b27293ac15070323081a59fa0118ef8e1fa5a19f5982e2ea3292429dd41a86ba71a0b0b34268d83fd887eea00cae902063874

Download Submit
memory/2544-1-0x0000000002FF0000-0x00000000030F0000-memory.dmp

Filesize
1024KB

Download
memory/2544-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2544-4-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/2544-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2544-9-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/2632-17-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/2820-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads