tofsee | 6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab

Analysis

max time kernel
149s
max time network
156s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 01:03

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General

Target

JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe
Size

167KB
MD5

249fdfe48e87781f9afc019e32386aac
SHA1

07cd4328635c81f4884a63f84b6bfd0e307a61ae
SHA256

6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab
SHA512

f5696faddf8edd51f04681c391cc6c92dd0e66cf80c521134b472de6488e0016a9b3958d6e0de6cf61c6913463dea053c8c89bdac74a26b8d9b2289c418f5377
SSDEEP

3072:P9tPi1h6wejM/fvv0qqgikN3KAaf5gitpr6uerWcCS9H6dY3:l5i333/fGgizrMCEad

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\vmrvmadm = "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
2940	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\vmrvmadm\ImagePath = "C:\\Windows\\SysWOW64\\vmrvmadm\\wqmsdnfl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2284	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2956	wqmsdnfl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2956 set thread context of 2284	2956	wqmsdnfl.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2912	sc.exe
2808	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	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wqmsdnfl.exe
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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 2144	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	29
PID 2580 wrote to memory of 2144	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	29
PID 2580 wrote to memory of 2144	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	29
PID 2580 wrote to memory of 2144	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	29
PID 2580 wrote to memory of 2392	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	31
PID 2580 wrote to memory of 2392	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	31
PID 2580 wrote to memory of 2392	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	31
PID 2580 wrote to memory of 2392	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	31
PID 2580 wrote to memory of 2788	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	33
PID 2580 wrote to memory of 2788	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	33
PID 2580 wrote to memory of 2788	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	33
PID 2580 wrote to memory of 2788	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	33
PID 2580 wrote to memory of 2912	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	35
PID 2580 wrote to memory of 2912	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	35
PID 2580 wrote to memory of 2912	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	35
PID 2580 wrote to memory of 2912	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	35
PID 2580 wrote to memory of 2808	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	37
PID 2580 wrote to memory of 2808	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	37
PID 2580 wrote to memory of 2808	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	37
PID 2580 wrote to memory of 2808	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	37
PID 2580 wrote to memory of 2940	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	40
PID 2580 wrote to memory of 2940	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	40
PID 2580 wrote to memory of 2940	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	40
PID 2580 wrote to memory of 2940	2580	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	40
PID 2956 wrote to memory of 2284	2956	wqmsdnfl.exe	42
PID 2956 wrote to memory of 2284	2956	wqmsdnfl.exe	42
PID 2956 wrote to memory of 2284	2956	wqmsdnfl.exe	42
PID 2956 wrote to memory of 2284	2956	wqmsdnfl.exe	42
PID 2956 wrote to memory of 2284	2956	wqmsdnfl.exe	42
PID 2956 wrote to memory of 2284	2956	wqmsdnfl.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vmrvmadm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wqmsdnfl.exe" C:\Windows\SysWOW64\vmrvmadm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2392
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vmrvmadm binPath= "C:\Windows\SysWOW64\vmrvmadm\wqmsdnfl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vmrvmadm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vmrvmadm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- 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:2940

C:\Windows\SysWOW64\vmrvmadm\wqmsdnfl.exe
C:\Windows\SysWOW64\vmrvmadm\wqmsdnfl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956
- 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:2284

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\wqmsdnfl.exe

Filesize
10.8MB

MD5
9926e8e9ba948b96b725c26d21c8255c

SHA1
febd72ba01225aaf50b1728af40b0565ccb95a82

SHA256
dff47614379005d43fcfce5e294811793326803c8db85c33288377119ad4ffc3

SHA512
0ca04ff12534a8e6585caf201dc2b3e15bdc432293255cbfaa9efb448ac67601bb0fef24d8090c1cc99b34f2746d40c589371f23b84d69b6fbfa8347be15b2e1

Download Submit
memory/2284-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2284-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2284-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2284-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2284-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2580-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2580-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2580-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2580-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2580-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2580-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2956-15-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads