tofsee | cf522c5d8dd5027511930f29caf7574dc75191ed49412feb5805535a6f173230

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 13:32

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General

Target

JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe
Size

11.3MB
MD5

65bf617966af7e9a99e4460c251e3c41
SHA1

b5571037498d0fb035f7aee1dcb97930f37d3322
SHA256

cf522c5d8dd5027511930f29caf7574dc75191ed49412feb5805535a6f173230
SHA512

66bbc89c7586e70e067a2589bb9c464137b1f5a9e100febdd81d5c4ff1ee02f6e33678f433a5e1242291b21eb0fc0032cb17556caa828017eabd1c00bc62974f
SSDEEP

196608:jXPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPf:j

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\vhfjouus = "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
2780	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\vhfjouus\ImagePath = "C:\\Windows\\SysWOW64\\vhfjouus\\nhqanqvh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2712	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2096	nhqanqvh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2096 set thread context of 2712	2096	nhqanqvh.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
3012	sc.exe
2824	sc.exe
2660	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.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	nhqanqvh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2816	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	30
PID 2808 wrote to memory of 2816	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	30
PID 2808 wrote to memory of 2816	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	30
PID 2808 wrote to memory of 2816	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	30
PID 2808 wrote to memory of 1868	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	32
PID 2808 wrote to memory of 1868	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	32
PID 2808 wrote to memory of 1868	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	32
PID 2808 wrote to memory of 1868	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	32
PID 2808 wrote to memory of 3012	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	34
PID 2808 wrote to memory of 3012	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	34
PID 2808 wrote to memory of 3012	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	34
PID 2808 wrote to memory of 3012	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	34
PID 2808 wrote to memory of 2824	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	36
PID 2808 wrote to memory of 2824	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	36
PID 2808 wrote to memory of 2824	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	36
PID 2808 wrote to memory of 2824	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	36
PID 2808 wrote to memory of 2660	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	38
PID 2808 wrote to memory of 2660	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	38
PID 2808 wrote to memory of 2660	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	38
PID 2808 wrote to memory of 2660	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	38
PID 2808 wrote to memory of 2780	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	41
PID 2808 wrote to memory of 2780	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	41
PID 2808 wrote to memory of 2780	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	41
PID 2808 wrote to memory of 2780	2808	JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe	41
PID 2096 wrote to memory of 2712	2096	nhqanqvh.exe	43
PID 2096 wrote to memory of 2712	2096	nhqanqvh.exe	43
PID 2096 wrote to memory of 2712	2096	nhqanqvh.exe	43
PID 2096 wrote to memory of 2712	2096	nhqanqvh.exe	43
PID 2096 wrote to memory of 2712	2096	nhqanqvh.exe	43
PID 2096 wrote to memory of 2712	2096	nhqanqvh.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vhfjouus\
  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\nhqanqvh.exe" C:\Windows\SysWOW64\vhfjouus\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vhfjouus binPath= "C:\Windows\SysWOW64\vhfjouus\nhqanqvh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vhfjouus "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vhfjouus
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- 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:2780

C:\Windows\SysWOW64\vhfjouus\nhqanqvh.exe
C:\Windows\SysWOW64\vhfjouus\nhqanqvh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65bf617966af7e9a99e4460c251e3c41.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- 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\nhqanqvh.exe

Filesize
10.9MB

MD5
4276d6e574f6400e64b3f2a1dae82741

SHA1
aa8086e024027c58126f30047092b43651c0da35

SHA256
cd49e88abc766e9e6577b1e7d8b0c4b27df164e7067039ae11ff78c2b0166bb2

SHA512
859c90ab3290144e7aef08e9fa126943e28a570da620d46365967c15da158e984a99735352d6c2b099d148cdaa7080066f7c51f160e6884f7eecde25235e540f

Download Submit
memory/2096-16-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2712-11-0x0000000000080000-0x0000000000095000-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/2712-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

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

Filesize
84KB

Download
memory/2808-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2808-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2808-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2808-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2808-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2808-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads