tofsee | 548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 04:34

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General

Target

JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe
Size

234KB
MD5

8c7a19e279b6a8669251eca874339471
SHA1

130983b4e6961e673c092a78d6c8508cc4106c92
SHA256

548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb
SHA512

47e953b9296caf050f2c4e90ca8f2b3bcc4798d0b060a8675c6face0550925c206726da20e8f2c4a97dab87cd35bb65f0ae4e3696ad690b122e856e94172fc0b
SSDEEP

6144:bZRil6yf92g8+IU9XLBuzbgwujigaLwVf:bZRioyf8gxIUlBunnb

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\yvytcshn = "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
2824	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\yvytcshn\ImagePath = "C:\\Windows\\SysWOW64\\yvytcshn\\zsnzdsd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2860	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2676	zsnzdsd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2676 set thread context of 2860	2676	zsnzdsd.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1964	sc.exe
2680	sc.exe
2800	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zsnzdsd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 1440	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	31
PID 548 wrote to memory of 1440	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	31
PID 548 wrote to memory of 1440	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	31
PID 548 wrote to memory of 1440	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	31
PID 548 wrote to memory of 2508	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	33
PID 548 wrote to memory of 2508	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	33
PID 548 wrote to memory of 2508	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	33
PID 548 wrote to memory of 2508	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	33
PID 548 wrote to memory of 1964	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	35
PID 548 wrote to memory of 1964	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	35
PID 548 wrote to memory of 1964	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	35
PID 548 wrote to memory of 1964	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	35
PID 548 wrote to memory of 2680	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	37
PID 548 wrote to memory of 2680	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	37
PID 548 wrote to memory of 2680	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	37
PID 548 wrote to memory of 2680	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	37
PID 548 wrote to memory of 2800	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	39
PID 548 wrote to memory of 2800	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	39
PID 548 wrote to memory of 2800	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	39
PID 548 wrote to memory of 2800	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	39
PID 548 wrote to memory of 2824	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	42
PID 548 wrote to memory of 2824	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	42
PID 548 wrote to memory of 2824	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	42
PID 548 wrote to memory of 2824	548	JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe	42
PID 2676 wrote to memory of 2860	2676	zsnzdsd.exe	44
PID 2676 wrote to memory of 2860	2676	zsnzdsd.exe	44
PID 2676 wrote to memory of 2860	2676	zsnzdsd.exe	44
PID 2676 wrote to memory of 2860	2676	zsnzdsd.exe	44
PID 2676 wrote to memory of 2860	2676	zsnzdsd.exe	44
PID 2676 wrote to memory of 2860	2676	zsnzdsd.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yvytcshn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zsnzdsd.exe" C:\Windows\SysWOW64\yvytcshn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yvytcshn binPath= "C:\Windows\SysWOW64\yvytcshn\zsnzdsd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yvytcshn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yvytcshn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- 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:2824

C:\Windows\SysWOW64\yvytcshn\zsnzdsd.exe
C:\Windows\SysWOW64\yvytcshn\zsnzdsd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_548f5ce73f4e42e6912d1ffcc66b50d987e5b6dd90ce63f0c3feb6d68cfe0fbb.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- 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:2860

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\zsnzdsd.exe

Filesize
10.7MB

MD5
af831196c19183a9b941da874738cac9

SHA1
9b99694a2a5582d58f27b665d3e37db398c1d4d4

SHA256
d88980a080ae591d419d55680cc8fcf3e0ce48731cd0cadaa78b7b37a8a5419c

SHA512
1abf41b0f4a9c2dda881d9da389320034bb4f2d11b6abf638ad44732f512f8739ea3bf1934f543b1cee4ad5acd59b95369ed1d52e7cb42da5117d8df0a9c9411

Download Submit
memory/548-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/548-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/548-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/548-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/548-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/548-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/548-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2676-16-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2860-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2860-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads