tofsee | cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248

Analysis

max time kernel
147s
max time network
146s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 01:03

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe
Size

211KB
MD5

9a2f4cdd68133418516dbf4012bdc9bc
SHA1

a9d0a10e228907054c0825171188634092f29680
SHA256

cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248
SHA512

9dc9db2729e93df7ae17cc4b366211f4990285ff022ebe8fbc07528e34eaa9d40ae2cf7ba7e86af8b92fc087f12cba69bf032f7956b03213158c1a4d50918206
SSDEEP

6144:BZh9IJwIv6LIUvHtnHWH4IZsztVHeOli:ZeJwxLIUvHR2HopZeOM

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\kpblfncc = "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
2664	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\kpblfncc\ImagePath = "C:\\Windows\\SysWOW64\\kpblfncc\\yoooduas.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2672	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2720	yoooduas.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 2672	2720	yoooduas.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2556	sc.exe
2824	sc.exe
2576	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	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	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yoooduas.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2656	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	30
PID 2644 wrote to memory of 2656	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	30
PID 2644 wrote to memory of 2656	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	30
PID 2644 wrote to memory of 2656	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	30
PID 2644 wrote to memory of 2708	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	32
PID 2644 wrote to memory of 2708	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	32
PID 2644 wrote to memory of 2708	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	32
PID 2644 wrote to memory of 2708	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	32
PID 2644 wrote to memory of 2556	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	34
PID 2644 wrote to memory of 2556	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	34
PID 2644 wrote to memory of 2556	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	34
PID 2644 wrote to memory of 2556	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	34
PID 2644 wrote to memory of 2824	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	36
PID 2644 wrote to memory of 2824	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	36
PID 2644 wrote to memory of 2824	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	36
PID 2644 wrote to memory of 2824	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	36
PID 2644 wrote to memory of 2576	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	38
PID 2644 wrote to memory of 2576	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	38
PID 2644 wrote to memory of 2576	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	38
PID 2644 wrote to memory of 2576	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	38
PID 2644 wrote to memory of 2664	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	41
PID 2644 wrote to memory of 2664	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	41
PID 2644 wrote to memory of 2664	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	41
PID 2644 wrote to memory of 2664	2644	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	41
PID 2720 wrote to memory of 2672	2720	yoooduas.exe	43
PID 2720 wrote to memory of 2672	2720	yoooduas.exe	43
PID 2720 wrote to memory of 2672	2720	yoooduas.exe	43
PID 2720 wrote to memory of 2672	2720	yoooduas.exe	43
PID 2720 wrote to memory of 2672	2720	yoooduas.exe	43
PID 2720 wrote to memory of 2672	2720	yoooduas.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kpblfncc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yoooduas.exe" C:\Windows\SysWOW64\kpblfncc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kpblfncc binPath= "C:\Windows\SysWOW64\kpblfncc\yoooduas.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kpblfncc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kpblfncc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2576
- 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:2664

C:\Windows\SysWOW64\kpblfncc\yoooduas.exe
C:\Windows\SysWOW64\kpblfncc\yoooduas.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720
- 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:2672

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\yoooduas.exe

Filesize
12.1MB

MD5
9a38d8d04c066fbe77be97ec9156c78c

SHA1
e557e53a8c9de879fc1414c19e769b75731998b0

SHA256
c3940ba287366f39652aba4ba1802d379ff15597bf10bfac8b6af9a228a74223

SHA512
fa7555d4876d132ffb60eaccaddb36e6dd12e3e8d4787eaaf998a773f3af605097f8d5db5090bce66207d3a02149bccdfe1787f479dd91714bc1c7d0f0577428

Download Submit
memory/2644-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2644-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2644-1-0x0000000002CA0000-0x0000000002DA0000-memory.dmp

Filesize
1024KB

Download
memory/2644-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2644-8-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download
memory/2644-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2672-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2672-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2672-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2672-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2672-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-15-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads