tofsee | 9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212

Analysis

max time kernel
147s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 13:13

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General

Target

JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe
Size

316KB
MD5

87a58dc8ac5becd9f987e106a98965df
SHA1

d8f43dc14b3947098acec7a6252dc559324acf00
SHA256

9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212
SHA512

2b024787793cd31a8b0cf8bdd83c3b3bc7534f6bb0cbb110d9a2b2253dfc14de45b5a7cb051d4befea4daf0e83e6f267828c48a54c66b411468b4518d1bc445a
SSDEEP

6144:gVhnD8gVlE30L2ybuj67CZ0jGv2Dq31jsoQK7k:0E30L2ybuj67CZ0jGv2Ijs1K4

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\ygocualt = "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
2244	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\ygocualt\ImagePath = "C:\\Windows\\SysWOW64\\ygocualt\\pmxcakhe.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2588	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1936	pmxcakhe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1936 set thread context of 2588	1936	pmxcakhe.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1708	sc.exe
2384	sc.exe
2416	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	svchost.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	pmxcakhe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.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 2912 wrote to memory of 2836	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	28
PID 2912 wrote to memory of 2836	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	28
PID 2912 wrote to memory of 2836	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	28
PID 2912 wrote to memory of 2836	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	28
PID 2912 wrote to memory of 2088	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	30
PID 2912 wrote to memory of 2088	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	30
PID 2912 wrote to memory of 2088	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	30
PID 2912 wrote to memory of 2088	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	30
PID 2912 wrote to memory of 1708	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	32
PID 2912 wrote to memory of 1708	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	32
PID 2912 wrote to memory of 1708	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	32
PID 2912 wrote to memory of 1708	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	32
PID 2912 wrote to memory of 2384	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	34
PID 2912 wrote to memory of 2384	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	34
PID 2912 wrote to memory of 2384	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	34
PID 2912 wrote to memory of 2384	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	34
PID 2912 wrote to memory of 2416	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	36
PID 2912 wrote to memory of 2416	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	36
PID 2912 wrote to memory of 2416	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	36
PID 2912 wrote to memory of 2416	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	36
PID 2912 wrote to memory of 2244	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	39
PID 2912 wrote to memory of 2244	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	39
PID 2912 wrote to memory of 2244	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	39
PID 2912 wrote to memory of 2244	2912	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	39
PID 1936 wrote to memory of 2588	1936	pmxcakhe.exe	41
PID 1936 wrote to memory of 2588	1936	pmxcakhe.exe	41
PID 1936 wrote to memory of 2588	1936	pmxcakhe.exe	41
PID 1936 wrote to memory of 2588	1936	pmxcakhe.exe	41
PID 1936 wrote to memory of 2588	1936	pmxcakhe.exe	41
PID 1936 wrote to memory of 2588	1936	pmxcakhe.exe	41

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ygocualt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pmxcakhe.exe" C:\Windows\SysWOW64\ygocualt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ygocualt binPath= "C:\Windows\SysWOW64\ygocualt\pmxcakhe.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ygocualt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ygocualt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2416
- 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:2244

C:\Windows\SysWOW64\ygocualt\pmxcakhe.exe
C:\Windows\SysWOW64\ygocualt\pmxcakhe.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1936
- 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:2588

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\pmxcakhe.exe

Filesize
11.5MB

MD5
40cd3febb6cdc2edbc8357a0e15d1769

SHA1
6d2a1d072e8f2745eab4655001cad511fc702415

SHA256
ba8a58234c02d91281c4d289d363a0b729cb77c0feefba8d3cb5ed3177fa6efb

SHA512
5e08c86fe36ef3f2067c43ac2850dc6fb706aecba060d1b29816aa7caf61c0a0718f39718156a92697f8ac346dbe6bea19e90dcae953f27a96b639714b9547ac

Download Submit
memory/1936-17-0x0000000000400000-0x0000000002B46000-memory.dmp

Filesize
39.3MB

Download
memory/2588-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2588-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2588-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2588-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2912-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2912-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2912-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2912-7-0x0000000000400000-0x0000000002B46000-memory.dmp

Filesize
39.3MB

Download
memory/2912-1-0x0000000002C40000-0x0000000002D40000-memory.dmp

Filesize
1024KB

Download
memory/2912-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads