7f7a9c096197c86ed030441ae2170856a86b7987cbdc03e6dd6995eb477d4637

Analysis

max time kernel
149s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
11/07/2024, 11:55

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General

Target

3902fb6501b383e7fcc63451f367fd82_JaffaCakes118.exe
Size

47KB
MD5

3902fb6501b383e7fcc63451f367fd82
SHA1

1e9b6f1b9576088752145acff8f739ad0298bcf4
SHA256

7f7a9c096197c86ed030441ae2170856a86b7987cbdc03e6dd6995eb477d4637
SHA512

5f5340e59b444af7f69e9b678ede4f0d28c42b896e7d0dc7ff0f8a94c09c9fb533e08f376e7f77447f1e06cdd5ee10f1f73f115971fdbcbe7bf4adea6993ea32
SSDEEP

768:oTMegW662heGq+Uh6oiswwlMPBoYyNG95zKQKuvH24BVRuSwX7cwJ44rOg0:oTTJ32AV+Uh6Of06Fw/xvTbuSbwa4

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1680	rundll32.exe
3708	rundll32.exe

Modifies WinLogon 2 TTPs 12 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
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\__c0040AA8\Startup = "B"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8\Logon = "B"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8\Asynchronous = "1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8\DllName = "C:\\Windows\\system32\\__c0040AA8.dat"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8\Logon = "B"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8\Asynchronous = "1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8\DllName = "C:\\Windows\\system32\\__c0040AA8.dat"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8\Impersonate = "0"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\__c0040AA8\Startup = "B"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\__c0040AA8.dat	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\__c0040AA8.dat	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1972	1680	WerFault.exe	84

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1680	rundll32.exe
1680	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe
3708	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 908 wrote to memory of 1680	908	3902fb6501b383e7fcc63451f367fd82_JaffaCakes118.exe	84
PID 908 wrote to memory of 1680	908	3902fb6501b383e7fcc63451f367fd82_JaffaCakes118.exe	84
PID 908 wrote to memory of 1680	908	3902fb6501b383e7fcc63451f367fd82_JaffaCakes118.exe	84
PID 1680 wrote to memory of 3708	1680	rundll32.exe	86
PID 1680 wrote to memory of 3708	1680	rundll32.exe	86
PID 1680 wrote to memory of 3708	1680	rundll32.exe	86

C:\Users\Admin\AppData\Local\Temp\3902fb6501b383e7fcc63451f367fd82_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3902fb6501b383e7fcc63451f367fd82_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\3902fb6501b383e7fcc63451f367fd82_JaffaCakes118.exe.dat",E
  2⤵
  - Loads dropped DLL
  - Modifies WinLogon
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Windows\system32\__c0040AA8.dat",B
    3⤵
    - Loads dropped DLL
    - Modifies WinLogon
    - Suspicious behavior: EnumeratesProcesses
    PID:3708
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 660
    3⤵
    - Program crash
    PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1680 -ip 1680
1⤵
PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3902fb6501b383e7fcc63451f367fd82_JaffaCakes118.exe.dat

Filesize
28KB

MD5
d6cab399910aaf612025a5ed1c1dc78e

SHA1
8b4797283e3c430caab29107c45320f61d041f3f

SHA256
c2038e6e0f53f785f755f8dcc855253af383ccd557c59e7b19b71ea4ec074164

SHA512
573720e0ddef76db718187b44d5a2404166074eeeeb9caa09fa5a2a933f96b3ec37e8c82c480c8586b5646373d0acb501ed05c17117158af4917c10733a33e18

Download Submit
memory/908-0-0x0000000000400000-0x000000000040DBBA-memory.dmp

Filesize
54KB

Download
memory/908-1-0x00000000020C0000-0x00000000021C0000-memory.dmp

Filesize
1024KB

Download
memory/908-10-0x0000000000400000-0x000000000040DBBA-memory.dmp

Filesize
54KB

Download
memory/1680-5-0x0000000002AF0000-0x0000000002BF0000-memory.dmp

Filesize
1024KB

Download
memory/3708-9-0x0000000000EB0000-0x0000000000FB0000-memory.dmp

Filesize
1024KB

Download
memory/3708-11-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/3708-13-0x0000000000EB0000-0x0000000000FB0000-memory.dmp

Filesize
1024KB

Download