tofsee | 181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935

Analysis

max time kernel
146s
max time network
145s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 06:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe
Size

12.1MB
MD5

0906ff34f48334d4563ca2df39b3cef7
SHA1

289a0a4287b6e42e680a9b7efa0585fd97708f2e
SHA256

181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935
SHA512

41545edf3fc63015f8bf2d094de7c17688889fbf4956fadd0b2447da2a870967606ad06971b3db4f28de7e8c777a1dcfec67bb8a99454d1598f1a42bb20580f6
SSDEEP

196608:gXPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP/:g

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\vcchcpn = "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
2696	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\vcchcpn\ImagePath = "C:\\Windows\\SysWOW64\\vcchcpn\\vcobkxys.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2632	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2896	vcobkxys.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2896 set thread context of 2632	2896	vcobkxys.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2592	sc.exe
2664	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 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_0906ff34f48334d4563ca2df39b3cef7.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	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	vcobkxys.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 2668	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	30
PID 2916 wrote to memory of 2668	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	30
PID 2916 wrote to memory of 2668	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	30
PID 2916 wrote to memory of 2668	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	30
PID 2916 wrote to memory of 2772	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	32
PID 2916 wrote to memory of 2772	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	32
PID 2916 wrote to memory of 2772	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	32
PID 2916 wrote to memory of 2772	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	32
PID 2916 wrote to memory of 2664	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	34
PID 2916 wrote to memory of 2664	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	34
PID 2916 wrote to memory of 2664	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	34
PID 2916 wrote to memory of 2664	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	34
PID 2916 wrote to memory of 2928	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	36
PID 2916 wrote to memory of 2928	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	36
PID 2916 wrote to memory of 2928	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	36
PID 2916 wrote to memory of 2928	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	36
PID 2916 wrote to memory of 2592	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	38
PID 2916 wrote to memory of 2592	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	38
PID 2916 wrote to memory of 2592	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	38
PID 2916 wrote to memory of 2592	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	38
PID 2916 wrote to memory of 2696	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	41
PID 2916 wrote to memory of 2696	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	41
PID 2916 wrote to memory of 2696	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	41
PID 2916 wrote to memory of 2696	2916	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	41
PID 2896 wrote to memory of 2632	2896	vcobkxys.exe	43
PID 2896 wrote to memory of 2632	2896	vcobkxys.exe	43
PID 2896 wrote to memory of 2632	2896	vcobkxys.exe	43
PID 2896 wrote to memory of 2632	2896	vcobkxys.exe	43
PID 2896 wrote to memory of 2632	2896	vcobkxys.exe	43
PID 2896 wrote to memory of 2632	2896	vcobkxys.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vcchcpn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vcobkxys.exe" C:\Windows\SysWOW64\vcchcpn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vcchcpn binPath= "C:\Windows\SysWOW64\vcchcpn\vcobkxys.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vcchcpn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vcchcpn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- 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:2696

C:\Windows\SysWOW64\vcchcpn\vcobkxys.exe
C:\Windows\SysWOW64\vcchcpn\vcobkxys.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2896
- 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:2632

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\vcobkxys.exe

Filesize
10.7MB

MD5
b3ee84b6783666e54b358f384e6cecc0

SHA1
70a1fd0266437452b5e10a2b2dd4ea81f07fa05a

SHA256
fb125f3448f1e022fb5260fe587b32de169fb036799d72ede38300a7c19aac58

SHA512
8bf8ba9cf6d617c353db908425611e63230e0576ac3b84bd192057b135924662a08b0e855152f6ab198a3b00fed8857b55483beae19e91367f4dbb0923434d90

Download Submit
memory/2632-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2896-16-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2916-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2916-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2916-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2916-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2916-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads