tofsee | fd3dc0471381c2c032b31d76bccf7e126526dd9448066ca9d35e1e62e1a188b3

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 23:00

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General

Target

JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe
Size

333KB
MD5

00671df357ed0592f04e4d33c3703604
SHA1

38dbdb0fd9f8b6d4bcf0639604f25fd7e513c69f
SHA256

fd3dc0471381c2c032b31d76bccf7e126526dd9448066ca9d35e1e62e1a188b3
SHA512

fbc9bc3aa3e5781033ae1c06d0862e7fde17cd9ed47e1451fc2bc4ef96b7d2936b1e7ba9cb464d846dd7146fd3d7613f2bd94cd892e08ceb118d2c7b6d487a93
SSDEEP

6144:xOYmVlRyNQpj0ViCx2xKxc9Sh/KXl/wLWlWC8RzZap6:xW7Rw2j0VmKqgJKXlwGeVZ

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\kauaympf = "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
2884	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\kauaympf\ImagePath = "C:\\Windows\\SysWOW64\\kauaympf\\tpeejqwn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2616	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	tpeejqwn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2616	2712	tpeejqwn.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1168	sc.exe
2716	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	JaffaCakes118_00671df357ed0592f04e4d33c3703604.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
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	tpeejqwn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 1908	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	30
PID 2264 wrote to memory of 1908	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	30
PID 2264 wrote to memory of 1908	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	30
PID 2264 wrote to memory of 1908	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	30
PID 2264 wrote to memory of 2564	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	32
PID 2264 wrote to memory of 2564	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	32
PID 2264 wrote to memory of 2564	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	32
PID 2264 wrote to memory of 2564	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	32
PID 2264 wrote to memory of 1168	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	34
PID 2264 wrote to memory of 1168	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	34
PID 2264 wrote to memory of 1168	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	34
PID 2264 wrote to memory of 1168	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	34
PID 2264 wrote to memory of 2716	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	36
PID 2264 wrote to memory of 2716	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	36
PID 2264 wrote to memory of 2716	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	36
PID 2264 wrote to memory of 2716	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	36
PID 2264 wrote to memory of 2812	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	38
PID 2264 wrote to memory of 2812	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	38
PID 2264 wrote to memory of 2812	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	38
PID 2264 wrote to memory of 2812	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	38
PID 2712 wrote to memory of 2616	2712	tpeejqwn.exe	41
PID 2712 wrote to memory of 2616	2712	tpeejqwn.exe	41
PID 2712 wrote to memory of 2616	2712	tpeejqwn.exe	41
PID 2712 wrote to memory of 2616	2712	tpeejqwn.exe	41
PID 2712 wrote to memory of 2616	2712	tpeejqwn.exe	41
PID 2712 wrote to memory of 2616	2712	tpeejqwn.exe	41
PID 2264 wrote to memory of 2884	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	42
PID 2264 wrote to memory of 2884	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	42
PID 2264 wrote to memory of 2884	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	42
PID 2264 wrote to memory of 2884	2264	JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kauaympf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1908
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tpeejqwn.exe" C:\Windows\SysWOW64\kauaympf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kauaympf binPath= "C:\Windows\SysWOW64\kauaympf\tpeejqwn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kauaympf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kauaympf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:2884

C:\Windows\SysWOW64\kauaympf\tpeejqwn.exe
C:\Windows\SysWOW64\kauaympf\tpeejqwn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00671df357ed0592f04e4d33c3703604.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2616

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\tpeejqwn.exe

Filesize
13.7MB

MD5
11f4a73b050631ae6589ac4b2076ec9d

SHA1
285a2efe0e01c7b5eaa18d5df994f76aa98a5916

SHA256
c7916f2423bc1c5b272af5ca123d17faf8914980d4d97ebdb2c6952b015fcc1a

SHA512
4c5fa4dce5270f12b1faa784ea59071afa630c1208063751f17326f0259e2733060995c0d928132e9a6c654e8197fcbc4070cdbeaa7f17834ad01e5da1a5f99f

Download Submit
memory/2264-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2264-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2264-1-0x00000000009B0000-0x0000000000AB0000-memory.dmp

Filesize
1024KB

Download
memory/2264-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2264-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2264-14-0x0000000000400000-0x0000000000882000-memory.dmp

Filesize
4.5MB

Download
memory/2616-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2616-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2616-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2616-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-13-0x0000000000400000-0x0000000000882000-memory.dmp

Filesize
4.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads