tofsee | c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29

Analysis

max time kernel
150s
max time network
144s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 05:59

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General

Target

JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe
Size

164KB
MD5

c7d11c27167d0519c4411bcdd078cc4c
SHA1

f8784b1bc7526b9b93632add439fa5ec35763b76
SHA256

c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29
SHA512

1cba4254bc94cd83c8068eb82e9079f050f35a7305fb522dbb9389c10ce007705d67359d84d18fe31e1b10365d602d014df6fe7cfda242a42e3d78ea313a622d
SSDEEP

3072:d1umt9LLocCys0GOPHt3h4MNV/d5LN9NFHGhaS9H6l:dAmDLoWskhVNVh0haEa

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\wjdzvuxn = "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
2636	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\wjdzvuxn\ImagePath = "C:\\Windows\\SysWOW64\\wjdzvuxn\\chdvtwi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2824	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	chdvtwi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2824	2852	chdvtwi.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2980	sc.exe
2716	sc.exe
2928	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chdvtwi.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	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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 2696	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	30
PID 844 wrote to memory of 2696	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	30
PID 844 wrote to memory of 2696	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	30
PID 844 wrote to memory of 2696	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	30
PID 844 wrote to memory of 2792	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	32
PID 844 wrote to memory of 2792	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	32
PID 844 wrote to memory of 2792	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	32
PID 844 wrote to memory of 2792	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	32
PID 844 wrote to memory of 2980	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	34
PID 844 wrote to memory of 2980	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	34
PID 844 wrote to memory of 2980	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	34
PID 844 wrote to memory of 2980	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	34
PID 844 wrote to memory of 2716	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	36
PID 844 wrote to memory of 2716	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	36
PID 844 wrote to memory of 2716	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	36
PID 844 wrote to memory of 2716	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	36
PID 844 wrote to memory of 2928	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	38
PID 844 wrote to memory of 2928	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	38
PID 844 wrote to memory of 2928	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	38
PID 844 wrote to memory of 2928	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	38
PID 844 wrote to memory of 2636	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	41
PID 844 wrote to memory of 2636	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	41
PID 844 wrote to memory of 2636	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	41
PID 844 wrote to memory of 2636	844	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	41
PID 2852 wrote to memory of 2824	2852	chdvtwi.exe	43
PID 2852 wrote to memory of 2824	2852	chdvtwi.exe	43
PID 2852 wrote to memory of 2824	2852	chdvtwi.exe	43
PID 2852 wrote to memory of 2824	2852	chdvtwi.exe	43
PID 2852 wrote to memory of 2824	2852	chdvtwi.exe	43
PID 2852 wrote to memory of 2824	2852	chdvtwi.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wjdzvuxn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\chdvtwi.exe" C:\Windows\SysWOW64\wjdzvuxn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wjdzvuxn binPath= "C:\Windows\SysWOW64\wjdzvuxn\chdvtwi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wjdzvuxn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wjdzvuxn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- 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:2636

C:\Windows\SysWOW64\wjdzvuxn\chdvtwi.exe
C:\Windows\SysWOW64\wjdzvuxn\chdvtwi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2852
- 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:2824

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\chdvtwi.exe

Filesize
11.2MB

MD5
dad19694baf507e97087caff887724c1

SHA1
4f33079ccc14eb94c9051d4a28fd8350a0e238b7

SHA256
e034e96dfb6d95eed3fa191ce3aa59891200ec2ad00a7964e92fbe7088fcc7b3

SHA512
f5bc28b41332e1855bd03880058f46c8b3dea22bf9411dc3fe560b40856ef2da0594e6a7a7370090d597822c7f621a4e6e38cb84b92f7ea2c03abd4f7321e557

Download Submit
memory/844-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/844-3-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/844-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/844-9-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/844-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2824-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-17-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads