tofsee | 6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b

Analysis

max time kernel
150s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 23:47

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General

Target

JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe
Size

292KB
MD5

67d7083f1734915ca4ef5a14820eed9e
SHA1

cf2436918acea33f6e66731e30dfcb4c21e6d423
SHA256

6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b
SHA512

34ec6dcf5fdd43ec0fd3302f61bd34067fb4f343cee245d708fc1739f845bdff4a238a4ba4a8510a23579c72192d6706a0a537bdc41c955b19129ccbe657d252
SSDEEP

6144:V2UaFUQRExHq9JEABei1SXuZet0ySbTHe7d1pMNA:IrExHcyABR1SXuZet0ySbTc1pMy

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\mabczymg = "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
2932	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\mabczymg\ImagePath = "C:\\Windows\\SysWOW64\\mabczymg\\cynnszfw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2592	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	cynnszfw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2708 set thread context of 2592	2708	cynnszfw.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2684	sc.exe
2828	sc.exe
2916	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cynnszfw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2044	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	31
PID 2492 wrote to memory of 2044	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	31
PID 2492 wrote to memory of 2044	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	31
PID 2492 wrote to memory of 2044	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	31
PID 2492 wrote to memory of 2504	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	33
PID 2492 wrote to memory of 2504	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	33
PID 2492 wrote to memory of 2504	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	33
PID 2492 wrote to memory of 2504	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	33
PID 2492 wrote to memory of 2916	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	35
PID 2492 wrote to memory of 2916	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	35
PID 2492 wrote to memory of 2916	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	35
PID 2492 wrote to memory of 2916	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	35
PID 2492 wrote to memory of 2684	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	37
PID 2492 wrote to memory of 2684	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	37
PID 2492 wrote to memory of 2684	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	37
PID 2492 wrote to memory of 2684	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	37
PID 2492 wrote to memory of 2828	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	39
PID 2492 wrote to memory of 2828	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	39
PID 2492 wrote to memory of 2828	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	39
PID 2492 wrote to memory of 2828	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	39
PID 2492 wrote to memory of 2932	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	42
PID 2492 wrote to memory of 2932	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	42
PID 2492 wrote to memory of 2932	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	42
PID 2492 wrote to memory of 2932	2492	JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe	42
PID 2708 wrote to memory of 2592	2708	cynnszfw.exe	44
PID 2708 wrote to memory of 2592	2708	cynnszfw.exe	44
PID 2708 wrote to memory of 2592	2708	cynnszfw.exe	44
PID 2708 wrote to memory of 2592	2708	cynnszfw.exe	44
PID 2708 wrote to memory of 2592	2708	cynnszfw.exe	44
PID 2708 wrote to memory of 2592	2708	cynnszfw.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mabczymg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cynnszfw.exe" C:\Windows\SysWOW64\mabczymg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mabczymg binPath= "C:\Windows\SysWOW64\mabczymg\cynnszfw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mabczymg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mabczymg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2828
- 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:2932

C:\Windows\SysWOW64\mabczymg\cynnszfw.exe
C:\Windows\SysWOW64\mabczymg\cynnszfw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf2fd59eac608a1f22414a2c20a21c5564c7b829375b5cab3944bb9374e8f0b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- 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:2592

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\cynnszfw.exe

Filesize
14.0MB

MD5
c65b129a0845d78b5c19c515afe827a8

SHA1
45f212b49f5e0965e01d02f086101a34d917c3b0

SHA256
96825d9a5cad3b7fd744526a111ec2244b371ce564966e6cdfd518ccc1ec2497

SHA512
672b8e00dea95d136a467228e3eb36c38a6f2a9df9475cbed29a1c10553b7cbd3f4e1cd65935032cfd3a23b920eb2bbfadc76d0298b828e0ac3f5c76ffc8abe6

Download Submit
memory/2492-7-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/2492-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2492-2-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/2492-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2492-8-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/2492-1-0x0000000002BD0000-0x0000000002CD0000-memory.dmp

Filesize
1024KB

Download
memory/2592-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2592-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2592-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2592-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2592-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-17-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads