6f18993bac4837ea42ebc8a43c38a4b6442ae3ecdd0f7815d88e1ae61537d5b6

Analysis

max time kernel
149s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-09-2024 02:56

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General

Target

ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe
Size

36KB
MD5

ce7c71cc261ddd965fa4c72758e10fa6
SHA1

a8fc0f5e73e02bbe78848f9eab4b7ff58faa20d5
SHA256

6f18993bac4837ea42ebc8a43c38a4b6442ae3ecdd0f7815d88e1ae61537d5b6
SHA512

86d88d5dd8fc7eeb941e82b42b31cf0f994c25c549cc0830e84a65e312b8133a27cd8d33586cd91c301bd5d2c0a30694f3e27a15675ce2d9e19e08e864cdbaee
SSDEEP

768:YQbo7cAirHFozG4yYa4pJ6OYvOOmiZeGmFFz/FJfaquJRn:XbESFoapgnipmFFz/vf

Score

7^/10

discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
4172	rundll32.exe
2592	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A00FE57A4EB.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_A00FE57A4EB.exe"	ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe

Modifies WinLogon 2 TTPs 12 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661\Logon = "B"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661\Asynchronous = "1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661\DllName = "C:\\Windows\\system32\\__c0066661.dat"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661\Impersonate = "0"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661\Startup = "B"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661\Startup = "B"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661\Logon = "B"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661\Asynchronous = "1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0066661\DllName = "C:\\Windows\\system32\\__c0066661.dat"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\__c0066661.dat	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\__c0066661.dat	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2996	4172	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4172	rundll32.exe
4172	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 4172	636	ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe	84
PID 636 wrote to memory of 4172	636	ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe	84
PID 636 wrote to memory of 4172	636	ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe	84
PID 4172 wrote to memory of 2592	4172	rundll32.exe	86
PID 4172 wrote to memory of 2592	4172	rundll32.exe	86
PID 4172 wrote to memory of 2592	4172	rundll32.exe	86

C:\Users\Admin\AppData\Local\Temp\ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:636
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe.dat",A
  2⤵
  - Loads dropped DLL
  - Modifies WinLogon
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4172
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Windows\system32\__c0066661.dat",B
    3⤵
    - Loads dropped DLL
    - Modifies WinLogon
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2592
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4172 -s 632
    3⤵
    - Program crash
    PID:2996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4172 -ip 4172
1⤵
PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ce7c71cc261ddd965fa4c72758e10fa6_JaffaCakes118.exe.dat

Filesize
27KB

MD5
8884dad971558d518e95c051967a0984

SHA1
ae98b8c930e7d8235ca5544642b1996a2cb1cbd4

SHA256
1a72e50afce0ee33fb6508f27ab549b85dead8d431622887d4a2eeebf444274d

SHA512
a35fd92f1d05f1283869ae3a2440d70766b989035dbad121929864f1e4f7d00adf7cce68a44bcc2fc17f2ada3e13c508ec15ce5f43c64346bad2756e1a8c2717

Download Submit
memory/636-0-0x00000000007F0000-0x00000000008F0000-memory.dmp

Filesize
1024KB

Download
memory/636-1-0x0000000000404000-0x000000000040B000-memory.dmp

Filesize
28KB

Download
memory/636-11-0x0000000000400000-0x000000000040A5BF-memory.dmp

Filesize
41KB

Download
memory/2592-9-0x00000000024A0000-0x00000000025A0000-memory.dmp

Filesize
1024KB

Download
memory/2592-12-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/4172-5-0x0000000002B70000-0x0000000002C70000-memory.dmp

Filesize
1024KB

Download