6aa55d12c38a80cc4ac93443a4bd75afdef403f359cb382bd9db96773bafbac0

Analysis

max time kernel
150s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2024, 04:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d393077a27822b48455b00172a39a350_JaffaCakes118.exe
Size

42KB
MD5

d393077a27822b48455b00172a39a350
SHA1

1d170cee94ad96642d9b8ae052e6ee1add921b22
SHA256

6aa55d12c38a80cc4ac93443a4bd75afdef403f359cb382bd9db96773bafbac0
SHA512

2fda6815fedc06e3cacbe6d91262ad0eb6d3b8a8986e56b95cf152546dbdab168a0f9157e0aa2db8e3390f41bfd5dcdf07f0aaf14715e8395d48649a499917d4
SSDEEP

768:hXtPrstAr0DR833iXZwFOK1IFO02xgtyyCImM/Ong3KTaiww/+i:XQtO0DR8voK1mCQ/ug3kF2i

Score

7^/10

discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe
3184	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\\ljJYRLCt.dll,#1"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\wvUlkKBQ.dll	d393077a27822b48455b00172a39a350_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ljJYRLCt.dll	d393077a27822b48455b00172a39a350_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\ljJYRLCt.dll	d393077a27822b48455b00172a39a350_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wvUlkKBQ.dll	d393077a27822b48455b00172a39a350_JaffaCakes118.exe

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	d393077a27822b48455b00172a39a350_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1B44E59C-165C-4EE2-B3CD-4DFD348BE123}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1B44E59C-165C-4EE2-B3CD-4DFD348BE123}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1B44E59C-165C-4EE2-B3CD-4DFD348BE123}\InprocServer32\ = "C:\\Windows\\SysWow64\\ljJYRLCt.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1B44E59C-165C-4EE2-B3CD-4DFD348BE123}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe
116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe
3184	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 608	116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe	5
PID 116 wrote to memory of 3184	116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe	95
PID 116 wrote to memory of 3184	116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe	95
PID 116 wrote to memory of 3184	116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe	95
PID 116 wrote to memory of 548	116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe	96
PID 116 wrote to memory of 548	116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe	96
PID 116 wrote to memory of 548	116	d393077a27822b48455b00172a39a350_JaffaCakes118.exe	96

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:608

C:\Users\Admin\AppData\Local\Temp\d393077a27822b48455b00172a39a350_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d393077a27822b48455b00172a39a350_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:116
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\ljJYRLCt.dll,a
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:3184
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\removalfile.bat "C:\Users\Admin\AppData\Local\Temp\d393077a27822b48455b00172a39a350_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:548

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\removalfile.bat

Filesize
43B

MD5
9a7ef09167a6f4433681b94351509043

SHA1
259b1375ed8e84943ca1d42646bb416325c89e12

SHA256
d5739a0510d89da572eb0b0d394d4fb4dd361cd9ee0144b9b31c590df93c3be7

SHA512
96b84cd88a0e4b7c1122af3ed6ce5edf0a9a4e9bf79575eadfac16b2c46f1278d57755d29f21d7c6dcb4403be24b7ac7da4837c6cc9c602342a8f2b8e54883df

Download Submit
C:\Windows\SysWOW64\wvUlkKBQ.dll

Filesize
32KB

MD5
a4c021a3862e82fad82aa27557839003

SHA1
662eff9b19d9619950c2270fa71320f7eda88842

SHA256
ff2984444f0b61a59383b24c5e9afe2be94fc64d72a26ae8596b2f3c17294f28

SHA512
b4c1674253e61ca30cf58f9f1d1a652c9286736f4436b3e08066374df9456c1d1cad23e59c7c866ea65f0806557439da5101822030442c698dd0d95907e57cfc

Download Submit
memory/116-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/116-1-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/116-2-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/116-8-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/116-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/116-15-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/3184-23-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/3184-25-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download