7e25e0c57b7bac6520e52f9f1df6cc476c9d77d00907636fe1f79d71c102505d

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-09-2024 15:52

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General

Target

dab287ef2be2fec66cb8f96cb6fb8961_JaffaCakes118.dll
Size

34KB
MD5

dab287ef2be2fec66cb8f96cb6fb8961
SHA1

43631b17974187674127ad871c7045ddeecfa111
SHA256

7e25e0c57b7bac6520e52f9f1df6cc476c9d77d00907636fe1f79d71c102505d
SHA512

033693645247c6d2db15e2e3a4f208a90c1f5e8c2e0dd5a64aeb8ea1ccc637b51eb3ae8612cf2871c70d53b4b6f4a99aa772a4fd6c2c1fba355b3824847832c8
SSDEEP

768:qAleGdYN4VEZ2MzKlekf/t3nF0QaQk6pUYRjcHZuMGh1:qA7ON4mVOleiRFLaQkIUYO5GX

Score

8^/10

discovery persistence

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
24	3816	rundll32.exe

Loads dropped DLL 3 IoCs

pid	Process
4344	rundll32.exe
4344	rundll32.exe
3816	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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\yayyWqPI.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

System Location Discovery: System Language Discovery 1 TTPs 2 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

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C}\InprocServer32\ThreadingModel = "Both"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C}\InprocServer32\ = "C:\\Windows\\SysWow64\\yayyWqPI.dll"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4344	rundll32.exe
4344	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe
3816	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4344	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4344	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4344	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 820 wrote to memory of 4344	820	rundll32.exe	83
PID 820 wrote to memory of 4344	820	rundll32.exe	83
PID 820 wrote to memory of 4344	820	rundll32.exe	83
PID 4344 wrote to memory of 612	4344	rundll32.exe	5
PID 4344 wrote to memory of 3816	4344	rundll32.exe	96
PID 4344 wrote to memory of 3816	4344	rundll32.exe	96
PID 4344 wrote to memory of 3816	4344	rundll32.exe	96

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dab287ef2be2fec66cb8f96cb6fb8961_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:820
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\dab287ef2be2fec66cb8f96cb6fb8961_JaffaCakes118.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4344
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\yayyWqPI.dll,a
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:3816

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\SysWOW64\yayyWqPI.dll

Filesize
34KB

MD5
dab287ef2be2fec66cb8f96cb6fb8961

SHA1
43631b17974187674127ad871c7045ddeecfa111

SHA256
7e25e0c57b7bac6520e52f9f1df6cc476c9d77d00907636fe1f79d71c102505d

SHA512
033693645247c6d2db15e2e3a4f208a90c1f5e8c2e0dd5a64aeb8ea1ccc637b51eb3ae8612cf2871c70d53b4b6f4a99aa772a4fd6c2c1fba355b3824847832c8

Download Submit
memory/3816-18-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/3816-19-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4344-0-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4344-1-0x0000000001080000-0x0000000001085000-memory.dmp

Filesize
20KB

Download
memory/4344-2-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4344-10-0x0000000002B80000-0x0000000002B94000-memory.dmp

Filesize
80KB

Download
memory/4344-9-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4344-11-0x0000000001080000-0x0000000001085000-memory.dmp

Filesize
20KB

Download
memory/4344-13-0x0000000002B80000-0x0000000002B94000-memory.dmp

Filesize
80KB

Download