tofsee | d11095d95a0c9af2e1de82b379c7e9d91fe7cd0dc2e282a1681c05a612a17c0d

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 17:54

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General

Target

JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe
Size

10.5MB
MD5

b5118669e5f5489e011925958a00c4c9
SHA1

ee80f8191a5f209baa04a73830727a69c8611d07
SHA256

d11095d95a0c9af2e1de82b379c7e9d91fe7cd0dc2e282a1681c05a612a17c0d
SHA512

957bb546ea2c3b2592aa771ea58ad6bd0cfd74539d258f224425f5fe35210edd900ddc2a46317b1e2eb649df975a53f097925008ffb222a88b67f60cb3b0b998
SSDEEP

49152:P2mNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNn:u

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\fozxgepy = "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
2824	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\fozxgepy\ImagePath = "C:\\Windows\\SysWOW64\\fozxgepy\\xnnnctzr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2712	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2888	xnnnctzr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 2712	2888	xnnnctzr.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2156	sc.exe
2904	sc.exe
2900	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xnnnctzr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2776	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	29
PID 2280 wrote to memory of 2776	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	29
PID 2280 wrote to memory of 2776	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	29
PID 2280 wrote to memory of 2776	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	29
PID 2280 wrote to memory of 2172	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	31
PID 2280 wrote to memory of 2172	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	31
PID 2280 wrote to memory of 2172	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	31
PID 2280 wrote to memory of 2172	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	31
PID 2280 wrote to memory of 2156	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	33
PID 2280 wrote to memory of 2156	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	33
PID 2280 wrote to memory of 2156	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	33
PID 2280 wrote to memory of 2156	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	33
PID 2280 wrote to memory of 2904	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	35
PID 2280 wrote to memory of 2904	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	35
PID 2280 wrote to memory of 2904	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	35
PID 2280 wrote to memory of 2904	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	35
PID 2280 wrote to memory of 2900	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	37
PID 2280 wrote to memory of 2900	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	37
PID 2280 wrote to memory of 2900	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	37
PID 2280 wrote to memory of 2900	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	37
PID 2280 wrote to memory of 2824	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	40
PID 2280 wrote to memory of 2824	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	40
PID 2280 wrote to memory of 2824	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	40
PID 2280 wrote to memory of 2824	2280	JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe	40
PID 2888 wrote to memory of 2712	2888	xnnnctzr.exe	42
PID 2888 wrote to memory of 2712	2888	xnnnctzr.exe	42
PID 2888 wrote to memory of 2712	2888	xnnnctzr.exe	42
PID 2888 wrote to memory of 2712	2888	xnnnctzr.exe	42
PID 2888 wrote to memory of 2712	2888	xnnnctzr.exe	42
PID 2888 wrote to memory of 2712	2888	xnnnctzr.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fozxgepy\
  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\xnnnctzr.exe" C:\Windows\SysWOW64\fozxgepy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fozxgepy binPath= "C:\Windows\SysWOW64\fozxgepy\xnnnctzr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fozxgepy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fozxgepy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:2824

C:\Windows\SysWOW64\fozxgepy\xnnnctzr.exe
C:\Windows\SysWOW64\fozxgepy\xnnnctzr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b5118669e5f5489e011925958a00c4c9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- 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:2712

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\xnnnctzr.exe

Filesize
12.6MB

MD5
bd71df7f20ef5c8d2e7ec3ae9a86f92a

SHA1
a7b85b1c8f465d6e0fabbd349e7f42e37493ae38

SHA256
1285bac82cee362dcd81101b4744c80250b415d48e21daeba676fa75264fec7f

SHA512
ade2fcf9756ead924698cc6bca6d81f52527a9a430e1f5ab8629f533b1b2a8158ce31053c3280afc2ba78ddab047a90f42c1ad4bff02410d7d0f9d17927c235f

Download Submit
memory/2280-7-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2280-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2280-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2280-1-0x00000000009C0000-0x0000000000AC0000-memory.dmp

Filesize
1024KB

Download
memory/2712-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-17-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads