tofsee | f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 09:32

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General

Target

JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe
Size

11.8MB
MD5

4fece95c5138be47dc60bef4279def37
SHA1

1a8feffb0571f72236b16aeffd5223d0ed2400c4
SHA256

f4debee839654168bc951377f49cb7f3af9cc125168975e3ea1a111f92efb705
SHA512

a4c40a3d0963d7ce1d2b15f67e382964fb26a4f52509f770f7f7f6ceeedaa34050f3a13734f70f5f6eb03beb0b03cbc673ab9d7835855bdbf2f9de970feb81d6
SSDEEP

196608:p4TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTn:p

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\lagckote = "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
2804	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\lagckote\ImagePath = "C:\\Windows\\SysWOW64\\lagckote\\szxiniwk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2600	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2580	szxiniwk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2580 set thread context of 2600	2580	szxiniwk.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2644	sc.exe
2828	sc.exe
2812	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	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	szxiniwk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4fece95c5138be47dc60bef4279def37.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2704	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	30
PID 2852 wrote to memory of 2704	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	30
PID 2852 wrote to memory of 2704	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	30
PID 2852 wrote to memory of 2704	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	30
PID 2852 wrote to memory of 2768	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	32
PID 2852 wrote to memory of 2768	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	32
PID 2852 wrote to memory of 2768	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	32
PID 2852 wrote to memory of 2768	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	32
PID 2852 wrote to memory of 2828	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	34
PID 2852 wrote to memory of 2828	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	34
PID 2852 wrote to memory of 2828	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	34
PID 2852 wrote to memory of 2828	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	34
PID 2852 wrote to memory of 2812	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	36
PID 2852 wrote to memory of 2812	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	36
PID 2852 wrote to memory of 2812	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	36
PID 2852 wrote to memory of 2812	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	36
PID 2852 wrote to memory of 2644	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	38
PID 2852 wrote to memory of 2644	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	38
PID 2852 wrote to memory of 2644	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	38
PID 2852 wrote to memory of 2644	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	38
PID 2852 wrote to memory of 2804	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	41
PID 2852 wrote to memory of 2804	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	41
PID 2852 wrote to memory of 2804	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	41
PID 2852 wrote to memory of 2804	2852	JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe	41
PID 2580 wrote to memory of 2600	2580	szxiniwk.exe	43
PID 2580 wrote to memory of 2600	2580	szxiniwk.exe	43
PID 2580 wrote to memory of 2600	2580	szxiniwk.exe	43
PID 2580 wrote to memory of 2600	2580	szxiniwk.exe	43
PID 2580 wrote to memory of 2600	2580	szxiniwk.exe	43
PID 2580 wrote to memory of 2600	2580	szxiniwk.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2852
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lagckote\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\szxiniwk.exe" C:\Windows\SysWOW64\lagckote\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lagckote binPath= "C:\Windows\SysWOW64\lagckote\szxiniwk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lagckote "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lagckote
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2644
- 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:2804

C:\Windows\SysWOW64\lagckote\szxiniwk.exe
C:\Windows\SysWOW64\lagckote\szxiniwk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fece95c5138be47dc60bef4279def37.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580
- 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:2600

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\szxiniwk.exe

Filesize
14.9MB

MD5
e9ade1612dc016001e61ead71a366f62

SHA1
aaa2b3a9d583b6659483354cc7701bc879b43b8f

SHA256
a479959b5cd5b467528c90ee2505c220c88a3dcf7a860f2c6b85ff80b84360c6

SHA512
4354f8e6327be15dd5ab6423041b5bf21c61bf3969d27c3fac7285c64a6d92a7457bb6ad7a4d052f15a1a705e6572d1f1f0c130fc8e9c8d03eef321e0bfd4ddf

Download Submit
memory/2580-17-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2600-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2600-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2852-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2852-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2852-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2852-8-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/2852-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2852-1-0x00000000008F0000-0x00000000009F0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads