tofsee | e28c9ae1fd731c719960f6c4246f8931963c18c04dbcfb967749c0e17c2a4584

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 10:34

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General

Target

fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe
Size

12.3MB
MD5

fb3047f88312a2511364821ffbf29fe3
SHA1

d4032a89a9e3d06df1c1c50b02ea07f4a2d4ff2c
SHA256

e28c9ae1fd731c719960f6c4246f8931963c18c04dbcfb967749c0e17c2a4584
SHA512

2022d1547e3d3aba1ec8be145547c08ed1a9f7cc0f4c9176e335b3b0769da88f4e7379acd08ce90ac01eb840c85aca167f5c22f9f130e427b03b7f964cc844d3
SSDEEP

49152:5HM3pipipipipipipipipipipipipipipipipipipipipipipipipipipipipipH:RM

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\uhyeksds = "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
2940	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\uhyeksds\ImagePath = "C:\\Windows\\SysWOW64\\uhyeksds\\sidpjvzr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2992	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2916	sidpjvzr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2916 set thread context of 2992	2916	sidpjvzr.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2304	sc.exe
2872	sc.exe
2540	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sidpjvzr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 772 wrote to memory of 2416	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	30
PID 772 wrote to memory of 2416	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	30
PID 772 wrote to memory of 2416	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	30
PID 772 wrote to memory of 2416	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	30
PID 772 wrote to memory of 2244	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	32
PID 772 wrote to memory of 2244	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	32
PID 772 wrote to memory of 2244	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	32
PID 772 wrote to memory of 2244	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	32
PID 772 wrote to memory of 2304	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	34
PID 772 wrote to memory of 2304	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	34
PID 772 wrote to memory of 2304	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	34
PID 772 wrote to memory of 2304	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	34
PID 772 wrote to memory of 2872	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	36
PID 772 wrote to memory of 2872	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	36
PID 772 wrote to memory of 2872	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	36
PID 772 wrote to memory of 2872	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	36
PID 772 wrote to memory of 2540	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	38
PID 772 wrote to memory of 2540	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	38
PID 772 wrote to memory of 2540	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	38
PID 772 wrote to memory of 2540	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	38
PID 772 wrote to memory of 2940	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	41
PID 772 wrote to memory of 2940	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	41
PID 772 wrote to memory of 2940	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	41
PID 772 wrote to memory of 2940	772	fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe	41
PID 2916 wrote to memory of 2992	2916	sidpjvzr.exe	44
PID 2916 wrote to memory of 2992	2916	sidpjvzr.exe	44
PID 2916 wrote to memory of 2992	2916	sidpjvzr.exe	44
PID 2916 wrote to memory of 2992	2916	sidpjvzr.exe	44
PID 2916 wrote to memory of 2992	2916	sidpjvzr.exe	44
PID 2916 wrote to memory of 2992	2916	sidpjvzr.exe	44

C:\Users\Admin\AppData\Local\Temp\fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:772
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uhyeksds\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sidpjvzr.exe" C:\Windows\SysWOW64\uhyeksds\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uhyeksds binPath= "C:\Windows\SysWOW64\uhyeksds\sidpjvzr.exe /d\"C:\Users\Admin\AppData\Local\Temp\fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2304
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uhyeksds "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uhyeksds
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2540
- 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:2940

C:\Windows\SysWOW64\uhyeksds\sidpjvzr.exe
C:\Windows\SysWOW64\uhyeksds\sidpjvzr.exe /d"C:\Users\Admin\AppData\Local\Temp\fb3047f88312a2511364821ffbf29fe3_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- 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:2992

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\sidpjvzr.exe

Filesize
13.7MB

MD5
44d965dc1d9bc527eb5d4ce1c25301b3

SHA1
de4bf1cfe23fcf69023dcd6e7ae7e65eaca51dff

SHA256
f50ce93a8c958d325153eed30dd78220dad13fe8bdee477076a383e7687e8e74

SHA512
8f8658bb42ac02ea185c0aa076b60fb2e88d1bb2b9b73ad36961364ccaff88348059d65adee3bf80259935c948336411e4ba9f1620f401241a7347249e68a309

Download Submit
memory/772-8-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/772-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/772-2-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/772-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/772-9-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/772-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2916-17-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2992-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2992-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2992-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads