tofsee | 21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d

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 00:48

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General

Target

JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe
Size

289KB
MD5

fc3b7de2e1349e3132fbbc37ff6c265d
SHA1

acd8bb57f4297c422a531a13172ae0a89637d4ec
SHA256

21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d
SHA512

95c7c767abc7383c67fdb6c84a05c5b6baabe74f71c13c1cd0b4c11bf62c6157fdff1a3867d49162d89ef6a30c20dae1b76781ba2897ccf2f93a1a70ecd16422
SSDEEP

6144:eRpABz+P8behNzsXqJL6F6EkOOhxxdeTr/ekI:DBz+U0xL6Fdizxd6L

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\aihztbqq = "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
2832	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\aihztbqq\ImagePath = "C:\\Windows\\SysWOW64\\aihztbqq\\kwdxcivd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2608	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	kwdxcivd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 2608	2872	kwdxcivd.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2768	sc.exe
292	sc.exe
2732	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	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kwdxcivd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 2500 wrote to memory of 1800	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	30
PID 2500 wrote to memory of 1800	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	30
PID 2500 wrote to memory of 1800	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	30
PID 2500 wrote to memory of 1800	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	30
PID 2500 wrote to memory of 2492	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	32
PID 2500 wrote to memory of 2492	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	32
PID 2500 wrote to memory of 2492	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	32
PID 2500 wrote to memory of 2492	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	32
PID 2500 wrote to memory of 2768	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	34
PID 2500 wrote to memory of 2768	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	34
PID 2500 wrote to memory of 2768	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	34
PID 2500 wrote to memory of 2768	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	34
PID 2500 wrote to memory of 292	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	36
PID 2500 wrote to memory of 292	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	36
PID 2500 wrote to memory of 292	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	36
PID 2500 wrote to memory of 292	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	36
PID 2500 wrote to memory of 2732	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	38
PID 2500 wrote to memory of 2732	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	38
PID 2500 wrote to memory of 2732	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	38
PID 2500 wrote to memory of 2732	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	38
PID 2500 wrote to memory of 2832	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	41
PID 2500 wrote to memory of 2832	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	41
PID 2500 wrote to memory of 2832	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	41
PID 2500 wrote to memory of 2832	2500	JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe	41
PID 2872 wrote to memory of 2608	2872	kwdxcivd.exe	44
PID 2872 wrote to memory of 2608	2872	kwdxcivd.exe	44
PID 2872 wrote to memory of 2608	2872	kwdxcivd.exe	44
PID 2872 wrote to memory of 2608	2872	kwdxcivd.exe	44
PID 2872 wrote to memory of 2608	2872	kwdxcivd.exe	44
PID 2872 wrote to memory of 2608	2872	kwdxcivd.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aihztbqq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kwdxcivd.exe" C:\Windows\SysWOW64\aihztbqq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aihztbqq binPath= "C:\Windows\SysWOW64\aihztbqq\kwdxcivd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aihztbqq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aihztbqq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2732
- 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:2832

C:\Windows\SysWOW64\aihztbqq\kwdxcivd.exe
C:\Windows\SysWOW64\aihztbqq\kwdxcivd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- 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:2608

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\kwdxcivd.exe

Filesize
10.8MB

MD5
322e88507540b53def74ab7adf187dab

SHA1
ab8857b54e4223b2cc3f2e4cea0732869f87947a

SHA256
b0a0c184f55178aa3c236484ab8aeda40cb5760a0b35fe181e407d5bb62c655c

SHA512
f38d340c845dac2bb0f3a0818bee037c47a9657dae449d2c201114d4fbfcc831ff6ac9a528827bba6f7fac080501fc98d303df4fbdac514787b27b70698de91f

Download Submit
memory/2500-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2500-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2500-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2500-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2500-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2500-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2608-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2608-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2608-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2608-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2608-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2872-15-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads