tofsee | 94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 16:02

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General

Target

JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe
Size

10.9MB
MD5

5b71eafbe78dfb0cfe34d51e78f4b646
SHA1

4704183ac76b4dfcf6cb8f7f17ec383846ac0b5b
SHA256

94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32
SHA512

c676de991a00ea0c3279bc1a6cdd7a22f84f1ebdd94106b6eac535f1669faf268f291a77c05d814bc7555038f168c379c7c38b872b790b144b779dc643fdaf97
SSDEEP

98304:/C+PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:6

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\xactixc = "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
2584	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\xactixc\ImagePath = "C:\\Windows\\SysWOW64\\xactixc\\gwrdxjnf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1088	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2556	gwrdxjnf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2556 set thread context of 1088	2556	gwrdxjnf.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2664	sc.exe
2928	sc.exe
2580	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.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	gwrdxjnf.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 764 wrote to memory of 2788	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	31
PID 764 wrote to memory of 2788	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	31
PID 764 wrote to memory of 2788	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	31
PID 764 wrote to memory of 2788	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	31
PID 764 wrote to memory of 2656	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	33
PID 764 wrote to memory of 2656	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	33
PID 764 wrote to memory of 2656	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	33
PID 764 wrote to memory of 2656	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	33
PID 764 wrote to memory of 2928	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	35
PID 764 wrote to memory of 2928	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	35
PID 764 wrote to memory of 2928	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	35
PID 764 wrote to memory of 2928	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	35
PID 764 wrote to memory of 2580	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	37
PID 764 wrote to memory of 2580	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	37
PID 764 wrote to memory of 2580	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	37
PID 764 wrote to memory of 2580	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	37
PID 764 wrote to memory of 2664	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	39
PID 764 wrote to memory of 2664	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	39
PID 764 wrote to memory of 2664	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	39
PID 764 wrote to memory of 2664	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	39
PID 764 wrote to memory of 2584	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	42
PID 764 wrote to memory of 2584	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	42
PID 764 wrote to memory of 2584	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	42
PID 764 wrote to memory of 2584	764	JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe	42
PID 2556 wrote to memory of 1088	2556	gwrdxjnf.exe	44
PID 2556 wrote to memory of 1088	2556	gwrdxjnf.exe	44
PID 2556 wrote to memory of 1088	2556	gwrdxjnf.exe	44
PID 2556 wrote to memory of 1088	2556	gwrdxjnf.exe	44
PID 2556 wrote to memory of 1088	2556	gwrdxjnf.exe	44
PID 2556 wrote to memory of 1088	2556	gwrdxjnf.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xactixc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gwrdxjnf.exe" C:\Windows\SysWOW64\xactixc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xactixc binPath= "C:\Windows\SysWOW64\xactixc\gwrdxjnf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xactixc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xactixc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2664
- 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:2584

C:\Windows\SysWOW64\xactixc\gwrdxjnf.exe
C:\Windows\SysWOW64\xactixc\gwrdxjnf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b71eafbe78dfb0cfe34d51e78f4b646.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2556
- 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:1088

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\gwrdxjnf.exe

Filesize
11.8MB

MD5
fc5ea20f8ca2c800cc313df36dee425b

SHA1
f718a40f090afbe3835c06f67c8af7fe38322766

SHA256
a8d4ed11e573d236ddf64ba722a9b1a627928487f575345efb6cf23767ab65be

SHA512
b52b9a7d7bc65c0bfb0d14fdddf0cb61267f27dcd6d0f4fd3669beaae2c6430055eaabac23bcce508aaf2d69fa4c19a17c63b659070dc760e20d0cc43e953ab1

Download Submit
memory/764-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/764-4-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/764-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/764-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/764-9-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/1088-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1088-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1088-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1088-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1088-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2556-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads