35b29d5619a8a6236368df256d172a8ffa4b4484c8cb74667c36d1917cc51f71

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
19/08/2024, 20:44

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General

Target

ac831b608810802a554b79d7b76db868_JaffaCakes118.dll
Size

174KB
MD5

ac831b608810802a554b79d7b76db868
SHA1

488042b6b6489247bac9ccdfbefb6f56605ef2f8
SHA256

35b29d5619a8a6236368df256d172a8ffa4b4484c8cb74667c36d1917cc51f71
SHA512

4e951d1935f128eca13ca30da3c21176c8ec7baa0f70b8f39b09e7c325bc8273d3095ce8872c5a04eb0550a5d6d164408984806c2dccfeaeb68bd99cfd58f53a
SSDEEP

3072:MZtFthhaiuwQpDG71TjP+ZbcuOeNtuLDdzoWeh9km+TxhVGSSXZam70ZYB1:wFth+wQs71xEtYdzoWK9km+TvVGBak

Score

10^/10

discovery persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 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\Userinit = ",rundll32.exe C:\\Windows\\system32\\070418.dll start"	rundll32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\mywinsys.ini	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2332	rundll32.exe
2332	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	rundll32.exe
Token: SeDebugPrivilege	2332	rundll32.exe
Token: SeDebugPrivilege	2332	rundll32.exe
Token: SeDebugPrivilege	2332	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2332	2912	rundll32.exe	30
PID 2912 wrote to memory of 2332	2912	rundll32.exe	30
PID 2912 wrote to memory of 2332	2912	rundll32.exe	30
PID 2912 wrote to memory of 2332	2912	rundll32.exe	30
PID 2912 wrote to memory of 2332	2912	rundll32.exe	30
PID 2912 wrote to memory of 2332	2912	rundll32.exe	30
PID 2912 wrote to memory of 2332	2912	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ac831b608810802a554b79d7b76db868_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ac831b608810802a554b79d7b76db868_JaffaCakes118.dll,#1
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2332

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mywinsys.ini

Filesize
25B

MD5
fab1f912897143d573511e1602d263ea

SHA1
f75f5c5b9604d51c8705b26798f3341ba005827e

SHA256
a162cf8a97d899153eff9fd4c9ff8f23cc62b7a82f9bce5ff0d199949e41fbdc

SHA512
c3b1c137bed3a8d566353009921d235f38e786043acdd938d1f848d0a0220f65c7cf4301ed49fabebdcb1de9505ef5d61b8496ebb9f83e6d553e1aa819c6e2c7

Download Submit
memory/2332-0-0x00000000001A0000-0x00000000001D1000-memory.dmp

Filesize
196KB

Download
memory/2332-12-0x00000000001A0000-0x00000000001D1000-memory.dmp

Filesize
196KB

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