tofsee | e8d7aaf589ec5208f5d7194ba23378e00b3ed3fb7c84ffd50b34df8e0a9c5d56

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 12:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe
Size

11.8MB
MD5

c7d54346062a0b114e7e99d4b205d785
SHA1

0f28c955632d206bdfdc825c3c5120815e39ab9a
SHA256

e8d7aaf589ec5208f5d7194ba23378e00b3ed3fb7c84ffd50b34df8e0a9c5d56
SHA512

a0910eebcd7a3c96dcd4a9a079725be04ad6e3b5f9c680053917465ff825e59e5459d9f62bca06f050f626c917032ec41a9d995528f6b3f194cae051e3f49c6b
SSDEEP

12288:UQeoegEG/Rl1M7jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjn:UQeGX1M

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\zwsgtokn = "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
2740	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\zwsgtokn\ImagePath = "C:\\Windows\\SysWOW64\\zwsgtokn\\xrnteogm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
984	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2696	xrnteogm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 984	2696	xrnteogm.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2104	sc.exe
2868	sc.exe
2664	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xrnteogm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 2776	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	30
PID 2892 wrote to memory of 2776	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	30
PID 2892 wrote to memory of 2776	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	30
PID 2892 wrote to memory of 2776	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	30
PID 2892 wrote to memory of 2852	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	32
PID 2892 wrote to memory of 2852	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	32
PID 2892 wrote to memory of 2852	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	32
PID 2892 wrote to memory of 2852	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	32
PID 2892 wrote to memory of 2104	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	34
PID 2892 wrote to memory of 2104	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	34
PID 2892 wrote to memory of 2104	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	34
PID 2892 wrote to memory of 2104	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	34
PID 2892 wrote to memory of 2868	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	36
PID 2892 wrote to memory of 2868	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	36
PID 2892 wrote to memory of 2868	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	36
PID 2892 wrote to memory of 2868	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	36
PID 2892 wrote to memory of 2664	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	38
PID 2892 wrote to memory of 2664	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	38
PID 2892 wrote to memory of 2664	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	38
PID 2892 wrote to memory of 2664	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	38
PID 2892 wrote to memory of 2740	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	41
PID 2892 wrote to memory of 2740	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	41
PID 2892 wrote to memory of 2740	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	41
PID 2892 wrote to memory of 2740	2892	JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe	41
PID 2696 wrote to memory of 984	2696	xrnteogm.exe	43
PID 2696 wrote to memory of 984	2696	xrnteogm.exe	43
PID 2696 wrote to memory of 984	2696	xrnteogm.exe	43
PID 2696 wrote to memory of 984	2696	xrnteogm.exe	43
PID 2696 wrote to memory of 984	2696	xrnteogm.exe	43
PID 2696 wrote to memory of 984	2696	xrnteogm.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zwsgtokn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xrnteogm.exe" C:\Windows\SysWOW64\zwsgtokn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zwsgtokn binPath= "C:\Windows\SysWOW64\zwsgtokn\xrnteogm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zwsgtokn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zwsgtokn
  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:2740

C:\Windows\SysWOW64\zwsgtokn\xrnteogm.exe
C:\Windows\SysWOW64\zwsgtokn\xrnteogm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7d54346062a0b114e7e99d4b205d785.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696
- 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:984

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\xrnteogm.exe

Filesize
10.1MB

MD5
2d523d80baf398b2f18b7a93fcbe508e

SHA1
89e03454c28a995b3b0284214326049cdffe51dc

SHA256
d2b7fe612ae7158ae5f9c23f83b0f912d51f951092875c55cbce2aebc055935b

SHA512
6201ec8e1aa634fb3fdfad5164bf9fdfa4bfa16b0d3b17d88e9fdc8115d960aad5e96d025735431beee07765d00904e505eb0a2eddff54648a81a8be3bfe4491

Download Submit
memory/984-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/984-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/984-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/984-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/984-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2696-16-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2892-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2892-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2892-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2892-7-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2892-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2892-1-0x00000000009F0000-0x0000000000AF0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads