tofsee | cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 22:55

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General

Target

JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe
Size

316KB
MD5

43d834f11fd8031dbcbba48f168447fe
SHA1

a66fa5a150db13a503f7bbe61349e230b70200ad
SHA256

cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6
SHA512

6aefca2f0b7bb4c41f986a730c1e13ef8cd71f9cd0883ae29fe1330bdc3972e5a0fcc1f7782f2a69ad4fcd77f653551e4aa5f397b2fccb00447f03d70252fbea
SSDEEP

6144:p5NbF5iFmK7Tm8krgjIENQgLFDJHjYWwftZ2mi3tj:8FN7Tm8krgjIENQgLFDJDwfk39

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\rcfndyhk = "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
2844	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\rcfndyhk\ImagePath = "C:\\Windows\\SysWOW64\\rcfndyhk\\wyshdzvm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2208	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	wyshdzvm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2208	2808	wyshdzvm.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2688	sc.exe
2000	sc.exe
1968	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_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wyshdzvm.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 1776	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	30
PID 2172 wrote to memory of 1776	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	30
PID 2172 wrote to memory of 1776	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	30
PID 2172 wrote to memory of 1776	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	30
PID 2172 wrote to memory of 2516	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	32
PID 2172 wrote to memory of 2516	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	32
PID 2172 wrote to memory of 2516	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	32
PID 2172 wrote to memory of 2516	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	32
PID 2172 wrote to memory of 1968	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	34
PID 2172 wrote to memory of 1968	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	34
PID 2172 wrote to memory of 1968	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	34
PID 2172 wrote to memory of 1968	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	34
PID 2172 wrote to memory of 2688	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	36
PID 2172 wrote to memory of 2688	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	36
PID 2172 wrote to memory of 2688	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	36
PID 2172 wrote to memory of 2688	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	36
PID 2172 wrote to memory of 2000	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	38
PID 2172 wrote to memory of 2000	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	38
PID 2172 wrote to memory of 2000	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	38
PID 2172 wrote to memory of 2000	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	38
PID 2172 wrote to memory of 2844	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	41
PID 2172 wrote to memory of 2844	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	41
PID 2172 wrote to memory of 2844	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	41
PID 2172 wrote to memory of 2844	2172	JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe	41
PID 2808 wrote to memory of 2208	2808	wyshdzvm.exe	43
PID 2808 wrote to memory of 2208	2808	wyshdzvm.exe	43
PID 2808 wrote to memory of 2208	2808	wyshdzvm.exe	43
PID 2808 wrote to memory of 2208	2808	wyshdzvm.exe	43
PID 2808 wrote to memory of 2208	2808	wyshdzvm.exe	43
PID 2808 wrote to memory of 2208	2808	wyshdzvm.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rcfndyhk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wyshdzvm.exe" C:\Windows\SysWOW64\rcfndyhk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rcfndyhk binPath= "C:\Windows\SysWOW64\rcfndyhk\wyshdzvm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rcfndyhk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rcfndyhk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2000
- 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:2844

C:\Windows\SysWOW64\rcfndyhk\wyshdzvm.exe
C:\Windows\SysWOW64\rcfndyhk\wyshdzvm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb4cf1445c3d7c32de55258685d9565ea268d7ddca0d64cf4c8c7600fa039b6.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- 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:2208

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\wyshdzvm.exe

Filesize
10.4MB

MD5
650223636a8d93f3165a8f0b777852de

SHA1
be588eeb2cde6c85325edc302fb9384a32320518

SHA256
040d6f8db26a57ab7664daf3c54f31768d5f17740250492c828185c8c1423b38

SHA512
2e0243db325cc51b0cc0b194a04ad452b80d228ae3a3baa37e7bd4cd4bc30721606a7c074d2357707ed3949b6c54c10b5dbcddd6eb01f6dad4f972f140831899

Download Submit
memory/2172-1-0x0000000002920000-0x0000000002A20000-memory.dmp

Filesize
1024KB

Download
memory/2172-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2172-4-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/2172-8-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/2172-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2208-16-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2208-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2208-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2208-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2208-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2808-17-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads