tofsee | 725942837d07ecacfd205166ae30d8286620d8f3ccbcc9a76b03c32ec0db9e51

Analysis

max time kernel
145s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 09:17

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General

Target

JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe
Size

10.0MB
MD5

5a9ef809fc37070083a115aa190ef1f1
SHA1

521c99511375bf9e2e2895885426fc61ead1dd1a
SHA256

725942837d07ecacfd205166ae30d8286620d8f3ccbcc9a76b03c32ec0db9e51
SHA512

155c9dd52fd34d2d54661ab6c8094dbe4ea2022dbb582ec7c4032950c5b07c446a3cde4169ea66d5c38bd8876a3d71577c54cffbb14dfe324568c437f92548cc
SSDEEP

12288:XExmZ6o10cbFU5tFU5tFU5tFU5tFU5tFU5tFU5tFU5tFU5tFU5tFU5tFU5tFU5ts:XEx27

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\dqnwcnzb = "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
2860	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\dqnwcnzb\ImagePath = "C:\\Windows\\SysWOW64\\dqnwcnzb\\hfugawhx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2896	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	hfugawhx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 2896	2716	hfugawhx.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2424	sc.exe
2524	sc.exe
2316	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.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	hfugawhx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 2512	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	30
PID 2200 wrote to memory of 2512	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	30
PID 2200 wrote to memory of 2512	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	30
PID 2200 wrote to memory of 2512	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	30
PID 2200 wrote to memory of 1872	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	32
PID 2200 wrote to memory of 1872	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	32
PID 2200 wrote to memory of 1872	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	32
PID 2200 wrote to memory of 1872	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	32
PID 2200 wrote to memory of 2524	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	34
PID 2200 wrote to memory of 2524	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	34
PID 2200 wrote to memory of 2524	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	34
PID 2200 wrote to memory of 2524	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	34
PID 2200 wrote to memory of 2316	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	36
PID 2200 wrote to memory of 2316	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	36
PID 2200 wrote to memory of 2316	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	36
PID 2200 wrote to memory of 2316	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	36
PID 2200 wrote to memory of 2424	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	38
PID 2200 wrote to memory of 2424	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	38
PID 2200 wrote to memory of 2424	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	38
PID 2200 wrote to memory of 2424	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	38
PID 2200 wrote to memory of 2860	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	41
PID 2200 wrote to memory of 2860	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	41
PID 2200 wrote to memory of 2860	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	41
PID 2200 wrote to memory of 2860	2200	JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe	41
PID 2716 wrote to memory of 2896	2716	hfugawhx.exe	43
PID 2716 wrote to memory of 2896	2716	hfugawhx.exe	43
PID 2716 wrote to memory of 2896	2716	hfugawhx.exe	43
PID 2716 wrote to memory of 2896	2716	hfugawhx.exe	43
PID 2716 wrote to memory of 2896	2716	hfugawhx.exe	43
PID 2716 wrote to memory of 2896	2716	hfugawhx.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dqnwcnzb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hfugawhx.exe" C:\Windows\SysWOW64\dqnwcnzb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dqnwcnzb binPath= "C:\Windows\SysWOW64\dqnwcnzb\hfugawhx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dqnwcnzb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dqnwcnzb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2424
- 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:2860

C:\Windows\SysWOW64\dqnwcnzb\hfugawhx.exe
C:\Windows\SysWOW64\dqnwcnzb\hfugawhx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a9ef809fc37070083a115aa190ef1f1.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716
- 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:2896

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\hfugawhx.exe

Filesize
11.8MB

MD5
e1e45650d09bab04a2beefe79adc1c06

SHA1
08970eb818b79ed8001fbe0fe92180c33c76051c

SHA256
ff540b8891f1f4fbaa4646ee6cf76074e5364aa90828488faae16b931f7c3467

SHA512
585b5d66ca494f45909e063708e2a50625bf0356eb2765334e17fa772cb1c9fa1aeb5e4799e443e2abede3190272a18a4fafc81cb833cd091443581b43f88362

Download Submit
memory/2200-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2200-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2200-4-0x0000000000400000-0x0000000002B75000-memory.dmp

Filesize
39.5MB

Download
memory/2200-9-0x0000000000400000-0x0000000002B75000-memory.dmp

Filesize
39.5MB

Download
memory/2200-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2716-15-0x0000000000400000-0x0000000002B75000-memory.dmp

Filesize
39.5MB

Download
memory/2896-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2896-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2896-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2896-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2896-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads