tofsee | f358207ddc655e1d34988ac7755fa7493bee2f8c852fa5379da38d61d50543e2

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 19:29

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General

Target

JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe
Size

12.0MB
MD5

d07c4e5d572d8f14b73aa058139b559f
SHA1

11902bb50ec2f62c49a82ad36ff74ea5f1ab9d44
SHA256

f358207ddc655e1d34988ac7755fa7493bee2f8c852fa5379da38d61d50543e2
SHA512

fb6b788988ff4428e36dbc7b80c11eab54b7da62145f0bb6f08b2c975911778a9954cc53e366dea3b4b52829d2d65e42bc61e0af667e5e485379c623850c2825
SSDEEP

12288:8ZnHC6Hf1kkNWoRjta3JZlPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPf:8dHCRiG

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\fgimtafz = "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
2928	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\fgimtafz\ImagePath = "C:\\Windows\\SysWOW64\\fgimtafz\\sqayyoxn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3020	sqayyoxn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3020 set thread context of 2784	3020	sqayyoxn.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2036	sc.exe
2888	sc.exe
2744	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_d07c4e5d572d8f14b73aa058139b559f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sqayyoxn.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2008	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	31
PID 2188 wrote to memory of 2008	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	31
PID 2188 wrote to memory of 2008	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	31
PID 2188 wrote to memory of 2008	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	31
PID 2188 wrote to memory of 2812	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	33
PID 2188 wrote to memory of 2812	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	33
PID 2188 wrote to memory of 2812	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	33
PID 2188 wrote to memory of 2812	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	33
PID 2188 wrote to memory of 2036	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	35
PID 2188 wrote to memory of 2036	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	35
PID 2188 wrote to memory of 2036	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	35
PID 2188 wrote to memory of 2036	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	35
PID 2188 wrote to memory of 2888	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	37
PID 2188 wrote to memory of 2888	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	37
PID 2188 wrote to memory of 2888	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	37
PID 2188 wrote to memory of 2888	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	37
PID 2188 wrote to memory of 2744	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	39
PID 2188 wrote to memory of 2744	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	39
PID 2188 wrote to memory of 2744	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	39
PID 2188 wrote to memory of 2744	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	39
PID 2188 wrote to memory of 2928	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	41
PID 2188 wrote to memory of 2928	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	41
PID 2188 wrote to memory of 2928	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	41
PID 2188 wrote to memory of 2928	2188	JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe	41
PID 3020 wrote to memory of 2784	3020	sqayyoxn.exe	44
PID 3020 wrote to memory of 2784	3020	sqayyoxn.exe	44
PID 3020 wrote to memory of 2784	3020	sqayyoxn.exe	44
PID 3020 wrote to memory of 2784	3020	sqayyoxn.exe	44
PID 3020 wrote to memory of 2784	3020	sqayyoxn.exe	44
PID 3020 wrote to memory of 2784	3020	sqayyoxn.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fgimtafz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2008
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sqayyoxn.exe" C:\Windows\SysWOW64\fgimtafz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fgimtafz binPath= "C:\Windows\SysWOW64\fgimtafz\sqayyoxn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fgimtafz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fgimtafz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- 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:2928

C:\Windows\SysWOW64\fgimtafz\sqayyoxn.exe
C:\Windows\SysWOW64\fgimtafz\sqayyoxn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d07c4e5d572d8f14b73aa058139b559f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3020
- 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:2784

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\sqayyoxn.exe

Filesize
14.5MB

MD5
569fd25cc4272aa01d2bdf3b80471a01

SHA1
962a08e5369955e236529d783cb953bf2fc59e08

SHA256
da1e98a2d825aa0bc9d0265ba5f30acbde78dcdd5596b6d9e175b56fc767f45d

SHA512
ab400cea091f430c7465e88022850bef8e0175d9293c5bb2a411a559b3ac86aaac8c2af6e82af13d7184c094ee5d36e6a56d29d04b8ee7ebc70dd694290a7864

Download Submit
memory/2188-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/2188-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2188-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2188-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2188-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2784-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3020-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads