tofsee | 9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 11:39

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General

Target

JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe
Size

236KB
MD5

a10cfebcac6052f54fae1e5ba6ddd760
SHA1

dac2ac4b67ba2b0ef2e02afd2740d11d492b7415
SHA256

9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f
SHA512

2fba121bfa8bc842103e6616a7305928664b6cae03b65ca5849dc1dbfa3e10ff2b8b733ea15bec8df74addf97a87a31a067e2f8c393532523e01e1c24273aca4
SSDEEP

6144:CLQdlDKqaGPkALoMQIOuzbgwujigaLwVf:CLQd1KqaOkw8IOunnb

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\rmglrzai = "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
2756	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\rmglrzai\ImagePath = "C:\\Windows\\SysWOW64\\rmglrzai\\jyzfsdxw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2904	jyzfsdxw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2904 set thread context of 2820	2904	jyzfsdxw.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
624	sc.exe
336	sc.exe
2840	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	sc.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	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jyzfsdxw.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 1732	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	30
PID 3048 wrote to memory of 1732	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	30
PID 3048 wrote to memory of 1732	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	30
PID 3048 wrote to memory of 1732	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	30
PID 3048 wrote to memory of 1136	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	32
PID 3048 wrote to memory of 1136	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	32
PID 3048 wrote to memory of 1136	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	32
PID 3048 wrote to memory of 1136	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	32
PID 3048 wrote to memory of 624	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	34
PID 3048 wrote to memory of 624	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	34
PID 3048 wrote to memory of 624	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	34
PID 3048 wrote to memory of 624	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	34
PID 3048 wrote to memory of 336	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	36
PID 3048 wrote to memory of 336	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	36
PID 3048 wrote to memory of 336	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	36
PID 3048 wrote to memory of 336	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	36
PID 3048 wrote to memory of 2840	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	38
PID 3048 wrote to memory of 2840	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	38
PID 3048 wrote to memory of 2840	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	38
PID 3048 wrote to memory of 2840	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	38
PID 2904 wrote to memory of 2820	2904	jyzfsdxw.exe	41
PID 2904 wrote to memory of 2820	2904	jyzfsdxw.exe	41
PID 2904 wrote to memory of 2820	2904	jyzfsdxw.exe	41
PID 2904 wrote to memory of 2820	2904	jyzfsdxw.exe	41
PID 2904 wrote to memory of 2820	2904	jyzfsdxw.exe	41
PID 2904 wrote to memory of 2820	2904	jyzfsdxw.exe	41
PID 3048 wrote to memory of 2756	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	42
PID 3048 wrote to memory of 2756	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	42
PID 3048 wrote to memory of 2756	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	42
PID 3048 wrote to memory of 2756	3048	JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rmglrzai\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jyzfsdxw.exe" C:\Windows\SysWOW64\rmglrzai\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rmglrzai binPath= "C:\Windows\SysWOW64\rmglrzai\jyzfsdxw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rmglrzai "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rmglrzai
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- 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:2756

C:\Windows\SysWOW64\rmglrzai\jyzfsdxw.exe
C:\Windows\SysWOW64\rmglrzai\jyzfsdxw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9be48fcae3b5f4502ad08eb6ae634a21c40182308ce1a43fb8702443ff58889f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- 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\jyzfsdxw.exe

Filesize
12.1MB

MD5
bd7fd6f90204fec5c770dc956cc58017

SHA1
8248b968fff51d988f056ad07a10ede15bba9be9

SHA256
5a92e55906e126b9e7291e7b7ffb049726047ffad4901909e0a394c220f9ff90

SHA512
3dd465aeee9aa3dc3a71feecb2b67320e71e25b374e2b9a3cb5fd870c8e0f31619bf543093a8a13d0532de1067c082ceb9ec6ef42c7f59a48d6021585edef664

Download Submit
memory/2820-6-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

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

Filesize
84KB

Download
memory/2820-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2904-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3048-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3048-1-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3048-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/3048-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3048-13-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3048-12-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/3048-11-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads