tofsee | 67729ca5a906673b68e97c49031e4d3b7349f39e83e75d82f28f435eaee47636

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
09-01-2025 07:24

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General

Target

JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe
Size

10.6MB
MD5

c2398c801dfe310d7ad448c4a0723027
SHA1

5ccce6758b684103f7c64b638b7e40df83c80b82
SHA256

67729ca5a906673b68e97c49031e4d3b7349f39e83e75d82f28f435eaee47636
SHA512

e6fdd95a7362770e3ed2d48015f69141edf62fa1122881e019f20633f98b6dc3d8f7685c0d6a77f0b31d8ef6ec950def2aaf01901f76a674305b6da4c9f14437
SSDEEP

3072:qMvoJ8oyOUQmaEa1otqKjHJSQEb/PUNnrU0vyHeN2hFRsGcPEH/UnpkWxeVxENO3:qMvw8F3QDEFgIpb8U92ebznbxe4

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\uwydkmmo = "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
1760	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\uwydkmmo\ImagePath = "C:\\Windows\\SysWOW64\\uwydkmmo\\rlhnyiag.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2824	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	rlhnyiag.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2824	2724	rlhnyiag.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2840	sc.exe
2588	sc.exe
2092	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.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	rlhnyiag.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 2816	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	30
PID 1268 wrote to memory of 2816	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	30
PID 1268 wrote to memory of 2816	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	30
PID 1268 wrote to memory of 2816	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	30
PID 1268 wrote to memory of 2712	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	32
PID 1268 wrote to memory of 2712	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	32
PID 1268 wrote to memory of 2712	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	32
PID 1268 wrote to memory of 2712	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	32
PID 1268 wrote to memory of 2840	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	34
PID 1268 wrote to memory of 2840	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	34
PID 1268 wrote to memory of 2840	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	34
PID 1268 wrote to memory of 2840	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	34
PID 1268 wrote to memory of 2588	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	36
PID 1268 wrote to memory of 2588	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	36
PID 1268 wrote to memory of 2588	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	36
PID 1268 wrote to memory of 2588	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	36
PID 1268 wrote to memory of 2092	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	38
PID 1268 wrote to memory of 2092	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	38
PID 1268 wrote to memory of 2092	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	38
PID 1268 wrote to memory of 2092	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	38
PID 1268 wrote to memory of 1760	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	41
PID 1268 wrote to memory of 1760	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	41
PID 1268 wrote to memory of 1760	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	41
PID 1268 wrote to memory of 1760	1268	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	41
PID 2724 wrote to memory of 2824	2724	rlhnyiag.exe	43
PID 2724 wrote to memory of 2824	2724	rlhnyiag.exe	43
PID 2724 wrote to memory of 2824	2724	rlhnyiag.exe	43
PID 2724 wrote to memory of 2824	2724	rlhnyiag.exe	43
PID 2724 wrote to memory of 2824	2724	rlhnyiag.exe	43
PID 2724 wrote to memory of 2824	2724	rlhnyiag.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uwydkmmo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rlhnyiag.exe" C:\Windows\SysWOW64\uwydkmmo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uwydkmmo binPath= "C:\Windows\SysWOW64\uwydkmmo\rlhnyiag.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uwydkmmo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uwydkmmo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2092
- 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:1760

C:\Windows\SysWOW64\uwydkmmo\rlhnyiag.exe
C:\Windows\SysWOW64\uwydkmmo\rlhnyiag.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724
- 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:2824

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\rlhnyiag.exe

Filesize
13.0MB

MD5
3485fdec0d87695c0334371057281c4f

SHA1
e0327f33bbd4dd287011a20044fe7ffc2b1fdd79

SHA256
f8022d2c983dbb8b9f19dd51a7979df4976b9fec8f372782439e18acb499a2ed

SHA512
de61cacc95ab8bdc3cdb932d3b796042194551bde0aa40faf0d670761158d9c245f6af67cc91495c5b4bd44d5be4412c0012b43b5d4ce5fa74db2e38df5d90c6

Download Submit
memory/1268-11-0x0000000000990000-0x0000000000A90000-memory.dmp

Filesize
1024KB

Download
memory/1268-4-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/1268-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1268-9-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/1268-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1268-1-0x0000000000990000-0x0000000000A90000-memory.dmp

Filesize
1024KB

Download
memory/2724-18-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2824-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads