tofsee | a70e2a08fe6c8b63eeb217dc9cf3731f70cb41c0c683f57fdfeb5039fceafbf9

Analysis

max time kernel
146s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/09/2024, 17:15

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General

Target

d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe
Size

13.2MB
MD5

d00c99b9f288f44b0ec8fdf5cea5e825
SHA1

42fc05b2a1a94ae6ebf7a33636a14c083601da0a
SHA256

a70e2a08fe6c8b63eeb217dc9cf3731f70cb41c0c683f57fdfeb5039fceafbf9
SHA512

2e92a6626e745d05436bd6f93dc35d6007581d078dfb7542dbd82ad2193b1d023bee2be4927d8fc7d0de11c86d23f4bcf2421823b4ccdc254877f358d3541abc
SSDEEP

24576:w8l6/KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKq:t

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan 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\mvafqazj = "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
2588	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\mvafqazj\ImagePath = "C:\\Windows\\SysWOW64\\mvafqazj\\fkupjvsu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2092	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	fkupjvsu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2776 set thread context of 2092	2776	fkupjvsu.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2704	sc.exe
2768	sc.exe
2744	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fkupjvsu.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1036 wrote to memory of 2820	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	31
PID 1036 wrote to memory of 2820	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	31
PID 1036 wrote to memory of 2820	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	31
PID 1036 wrote to memory of 2820	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	31
PID 1036 wrote to memory of 2732	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	33
PID 1036 wrote to memory of 2732	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	33
PID 1036 wrote to memory of 2732	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	33
PID 1036 wrote to memory of 2732	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	33
PID 1036 wrote to memory of 2704	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	35
PID 1036 wrote to memory of 2704	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	35
PID 1036 wrote to memory of 2704	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	35
PID 1036 wrote to memory of 2704	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	35
PID 1036 wrote to memory of 2768	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	37
PID 1036 wrote to memory of 2768	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	37
PID 1036 wrote to memory of 2768	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	37
PID 1036 wrote to memory of 2768	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	37
PID 1036 wrote to memory of 2744	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	39
PID 1036 wrote to memory of 2744	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	39
PID 1036 wrote to memory of 2744	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	39
PID 1036 wrote to memory of 2744	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	39
PID 1036 wrote to memory of 2588	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	42
PID 1036 wrote to memory of 2588	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	42
PID 1036 wrote to memory of 2588	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	42
PID 1036 wrote to memory of 2588	1036	d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe	42
PID 2776 wrote to memory of 2092	2776	fkupjvsu.exe	44
PID 2776 wrote to memory of 2092	2776	fkupjvsu.exe	44
PID 2776 wrote to memory of 2092	2776	fkupjvsu.exe	44
PID 2776 wrote to memory of 2092	2776	fkupjvsu.exe	44
PID 2776 wrote to memory of 2092	2776	fkupjvsu.exe	44
PID 2776 wrote to memory of 2092	2776	fkupjvsu.exe	44

C:\Users\Admin\AppData\Local\Temp\d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mvafqazj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fkupjvsu.exe" C:\Windows\SysWOW64\mvafqazj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mvafqazj binPath= "C:\Windows\SysWOW64\mvafqazj\fkupjvsu.exe /d\"C:\Users\Admin\AppData\Local\Temp\d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mvafqazj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mvafqazj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- 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:2588

C:\Windows\SysWOW64\mvafqazj\fkupjvsu.exe
C:\Windows\SysWOW64\mvafqazj\fkupjvsu.exe /d"C:\Users\Admin\AppData\Local\Temp\d00c99b9f288f44b0ec8fdf5cea5e825_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- 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:2092

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\fkupjvsu.exe

Filesize
14.0MB

MD5
83b73d527fe56402c3daf6ffd2d77f14

SHA1
b4f169a336eb70ab539f0e8489e455c7953520ea

SHA256
3541bbe997f56b5d72d78c67bcfe5e0c5915a019f2d769129fdf0699f0604853

SHA512
b05d9e253da9b76641804b3a7fb75fde664994744747bca248c20edc162ed2682711e85a874bccadced683473f29cc412435e50c920a3099b2f262b573630dfe

Download Submit
memory/1036-7-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/1036-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1036-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1036-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1036-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1036-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/2092-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2092-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2092-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2092-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2092-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-17-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads