tofsee | 0f2a790e1a03008ffcd468faa2ea0e0003b18f3e45189d25e835ca6fe5eb4417

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
05-01-2025 01:52

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_83d8280e972398709103e07acb5db531.exe
Size

11.1MB
MD5

83d8280e972398709103e07acb5db531
SHA1

6400f1663c65ca1a9e19b30219fda6d86d6f51ba
SHA256

0f2a790e1a03008ffcd468faa2ea0e0003b18f3e45189d25e835ca6fe5eb4417
SHA512

cf80f769c64f7520b5f55918b9911f83b6060399c386eabe866df648f58d0f335f42e5f2ff8c2a8272a40a99c54122cb26410648232d812bb89713526bf3f79d
SSDEEP

98304:0Y3333333333333333333333333333333333333333333333333333333333333X:0

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\zuimxxuq = "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
2996	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\zuimxxuq\ImagePath = "C:\\Windows\\SysWOW64\\zuimxxuq\\yojvpbfx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2712	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2672	yojvpbfx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2672 set thread context of 2712	2672	yojvpbfx.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2780	sc.exe
2864	sc.exe
2656	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	JaffaCakes118_83d8280e972398709103e07acb5db531.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	yojvpbfx.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 2480	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	31
PID 848 wrote to memory of 2480	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	31
PID 848 wrote to memory of 2480	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	31
PID 848 wrote to memory of 2480	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	31
PID 848 wrote to memory of 2728	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	33
PID 848 wrote to memory of 2728	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	33
PID 848 wrote to memory of 2728	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	33
PID 848 wrote to memory of 2728	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	33
PID 848 wrote to memory of 2656	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	35
PID 848 wrote to memory of 2656	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	35
PID 848 wrote to memory of 2656	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	35
PID 848 wrote to memory of 2656	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	35
PID 848 wrote to memory of 2780	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	37
PID 848 wrote to memory of 2780	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	37
PID 848 wrote to memory of 2780	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	37
PID 848 wrote to memory of 2780	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	37
PID 848 wrote to memory of 2864	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	39
PID 848 wrote to memory of 2864	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	39
PID 848 wrote to memory of 2864	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	39
PID 848 wrote to memory of 2864	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	39
PID 848 wrote to memory of 2996	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	42
PID 848 wrote to memory of 2996	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	42
PID 848 wrote to memory of 2996	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	42
PID 848 wrote to memory of 2996	848	JaffaCakes118_83d8280e972398709103e07acb5db531.exe	42
PID 2672 wrote to memory of 2712	2672	yojvpbfx.exe	44
PID 2672 wrote to memory of 2712	2672	yojvpbfx.exe	44
PID 2672 wrote to memory of 2712	2672	yojvpbfx.exe	44
PID 2672 wrote to memory of 2712	2672	yojvpbfx.exe	44
PID 2672 wrote to memory of 2712	2672	yojvpbfx.exe	44
PID 2672 wrote to memory of 2712	2672	yojvpbfx.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83d8280e972398709103e07acb5db531.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83d8280e972398709103e07acb5db531.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zuimxxuq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yojvpbfx.exe" C:\Windows\SysWOW64\zuimxxuq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zuimxxuq binPath= "C:\Windows\SysWOW64\zuimxxuq\yojvpbfx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83d8280e972398709103e07acb5db531.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zuimxxuq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zuimxxuq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- 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:2996

C:\Windows\SysWOW64\zuimxxuq\yojvpbfx.exe
C:\Windows\SysWOW64\zuimxxuq\yojvpbfx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83d8280e972398709103e07acb5db531.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- 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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\yojvpbfx.exe

Filesize
13.3MB

MD5
5ee45eb8a357087b33ec11edcfc1f400

SHA1
f447c042eb1349110cc69da081c442d962af7316

SHA256
0e17d3a9b86cec2146d43035c9423c526cd5564619323cc5abc3bc26974d5962

SHA512
97d3a69fdc1ab507aa2336d600a151d4eda4980b9164d613041691ed9f727e83f58435ba9410742f023d3495655bca6940c83703ddc0fa25c335cb6693bf55e0

Download Submit
memory/848-8-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/848-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/848-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/848-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/848-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/848-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2672-16-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

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

Filesize
4KB

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

Filesize
84KB

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

Filesize
84KB

Download
memory/2712-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

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

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads