tofsee | bb104f4d64f9a531d76f8a32cff00750975b1897faa74a6284af22bc7df9b002

Analysis

max time kernel
147s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/01/2025, 03:03

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General

Target

JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe
Size

11.7MB
MD5

874b4f072e4f7a9ef9fe5223fbe918ea
SHA1

f69d63c6ac97ff3765c5bf7e85c684d9f2b9227f
SHA256

bb104f4d64f9a531d76f8a32cff00750975b1897faa74a6284af22bc7df9b002
SHA512

c6b4a093eba3c715d9e3e5302c58d28d49e58813725aca183188b05230198d0be0464d51a0d9017fc4426622975c8fc660e0a4a3cbd965d1ddddedae068e46f9
SSDEEP

24576:6zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzT:

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\tezdijoo = "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
2688	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\tezdijoo\ImagePath = "C:\\Windows\\SysWOW64\\tezdijoo\\kenxknse.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2580	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	kenxknse.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2580	2828	kenxknse.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2780	sc.exe
2264	sc.exe
2704	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	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.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
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kenxknse.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 2452	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	31
PID 1624 wrote to memory of 2452	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	31
PID 1624 wrote to memory of 2452	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	31
PID 1624 wrote to memory of 2452	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	31
PID 1624 wrote to memory of 2356	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	33
PID 1624 wrote to memory of 2356	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	33
PID 1624 wrote to memory of 2356	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	33
PID 1624 wrote to memory of 2356	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	33
PID 1624 wrote to memory of 2264	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	35
PID 1624 wrote to memory of 2264	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	35
PID 1624 wrote to memory of 2264	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	35
PID 1624 wrote to memory of 2264	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	35
PID 1624 wrote to memory of 2704	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	37
PID 1624 wrote to memory of 2704	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	37
PID 1624 wrote to memory of 2704	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	37
PID 1624 wrote to memory of 2704	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	37
PID 1624 wrote to memory of 2780	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	39
PID 1624 wrote to memory of 2780	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	39
PID 1624 wrote to memory of 2780	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	39
PID 1624 wrote to memory of 2780	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	39
PID 1624 wrote to memory of 2688	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	42
PID 1624 wrote to memory of 2688	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	42
PID 1624 wrote to memory of 2688	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	42
PID 1624 wrote to memory of 2688	1624	JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe	42
PID 2828 wrote to memory of 2580	2828	kenxknse.exe	44
PID 2828 wrote to memory of 2580	2828	kenxknse.exe	44
PID 2828 wrote to memory of 2580	2828	kenxknse.exe	44
PID 2828 wrote to memory of 2580	2828	kenxknse.exe	44
PID 2828 wrote to memory of 2580	2828	kenxknse.exe	44
PID 2828 wrote to memory of 2580	2828	kenxknse.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tezdijoo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kenxknse.exe" C:\Windows\SysWOW64\tezdijoo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tezdijoo binPath= "C:\Windows\SysWOW64\tezdijoo\kenxknse.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tezdijoo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tezdijoo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- 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:2688

C:\Windows\SysWOW64\tezdijoo\kenxknse.exe
C:\Windows\SysWOW64\tezdijoo\kenxknse.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_874b4f072e4f7a9ef9fe5223fbe918ea.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:2580

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\kenxknse.exe

Filesize
11.6MB

MD5
0dfcce50ca57f43bdc3cc40c077ff9af

SHA1
741a649d83784cd54dff11205cb3131b5ff54055

SHA256
4e9d1d870bdb10fdc47f241fc78a2eb4df3403504b89d0c4c1fd6e6a94add669

SHA512
5944bfb446e76f312a3b62cc58fecfd429b294aba221c2cd4862fbb9e88903a430f9435c20d775dbf3738821f2981c5e32a5d4393316180fc413cfbfc61a3fc9

Download Submit
memory/1624-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/1624-3-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1624-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1624-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1624-9-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/2580-11-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2580-14-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2580-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2580-17-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2580-18-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2828-15-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads