tofsee | e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 13:40

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General

Target

JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe
Size

184KB
MD5

31fc0122636001e76cca65cd85d28a7f
SHA1

9e42a8fb0214134f7312068cbfa4a1f663b629c2
SHA256

e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42
SHA512

5e0527691f54fc26e683fcf692d637678bc57aece088502ce24d2f3430eb908c50f36c99f8f423eaadbbd574ee1a4b6e7e157ebe346160adba6c2237094e9314
SSDEEP

3072:nkmEokfyW/Sshyd6OCbefqGKIti4KrTWssUPZPwTns9MUjYAYeL9hgC:n8okaW/SshhQijKiZrT3jPCUjmev

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\mecpwfcb = "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
2652	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\mecpwfcb\ImagePath = "C:\\Windows\\SysWOW64\\mecpwfcb\\lxjrrcrz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2416	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	lxjrrcrz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 2416	2768	lxjrrcrz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2908	sc.exe
2948	sc.exe
1628	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	lxjrrcrz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2804	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	30
PID 2096 wrote to memory of 2804	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	30
PID 2096 wrote to memory of 2804	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	30
PID 2096 wrote to memory of 2804	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	30
PID 2096 wrote to memory of 2728	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	32
PID 2096 wrote to memory of 2728	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	32
PID 2096 wrote to memory of 2728	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	32
PID 2096 wrote to memory of 2728	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	32
PID 2096 wrote to memory of 2908	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	34
PID 2096 wrote to memory of 2908	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	34
PID 2096 wrote to memory of 2908	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	34
PID 2096 wrote to memory of 2908	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	34
PID 2096 wrote to memory of 2948	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	36
PID 2096 wrote to memory of 2948	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	36
PID 2096 wrote to memory of 2948	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	36
PID 2096 wrote to memory of 2948	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	36
PID 2096 wrote to memory of 1628	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	38
PID 2096 wrote to memory of 1628	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	38
PID 2096 wrote to memory of 1628	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	38
PID 2096 wrote to memory of 1628	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	38
PID 2096 wrote to memory of 2652	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	41
PID 2096 wrote to memory of 2652	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	41
PID 2096 wrote to memory of 2652	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	41
PID 2096 wrote to memory of 2652	2096	JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe	41
PID 2768 wrote to memory of 2416	2768	lxjrrcrz.exe	43
PID 2768 wrote to memory of 2416	2768	lxjrrcrz.exe	43
PID 2768 wrote to memory of 2416	2768	lxjrrcrz.exe	43
PID 2768 wrote to memory of 2416	2768	lxjrrcrz.exe	43
PID 2768 wrote to memory of 2416	2768	lxjrrcrz.exe	43
PID 2768 wrote to memory of 2416	2768	lxjrrcrz.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mecpwfcb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lxjrrcrz.exe" C:\Windows\SysWOW64\mecpwfcb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mecpwfcb binPath= "C:\Windows\SysWOW64\mecpwfcb\lxjrrcrz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mecpwfcb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mecpwfcb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1628
- 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:2652

C:\Windows\SysWOW64\mecpwfcb\lxjrrcrz.exe
C:\Windows\SysWOW64\mecpwfcb\lxjrrcrz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e3692685f9a728e0daeea23f159484fd1009bf615126d51a29440dcf53ab0d42.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- 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:2416

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\lxjrrcrz.exe

Filesize
12.3MB

MD5
a941504f264dfef8a83a6e3707cc9f8a

SHA1
58e3d0a66856a747d5c679ebdb755f822d845fa6

SHA256
e0cac8ffa7ef19b24de61723d98aa4599354b526f370ad48bc7cc8bf52e4f95f

SHA512
5883422615d88db96e8244c7679a11efde0beae93f3b592985ec93df5a002101fc84c9922e6702e29f79fc0352d0455fa9c91f82bbe7fc00ccf772a3e1aaa828

Download Submit
memory/2096-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2096-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2096-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2096-8-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2096-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2096-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/2416-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2416-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2416-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2416-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2416-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-17-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads