444d3e227591e251b3114bee41ac0b14627d3e4aebcc84749bab77316c631bd0

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24/08/2024, 10:01

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General

Target

be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe
Size

62KB
MD5

be5b87e0bb953a1ab3496cf6f7fb5897
SHA1

a6aa09fa8b71a3951911b521e34435093ebd39ec
SHA256

444d3e227591e251b3114bee41ac0b14627d3e4aebcc84749bab77316c631bd0
SHA512

b93828b41153b217d456de5758c84cb70a2b9ef212494270530f9157afcc29dd7d068cd66aaa305dd5301c460e3662434696d73d61d562b949f0f72755940e74
SSDEEP

768:hEDHCnRXpBeLqa0FBh14k7iZLZx4J7W8XmXNBlNDFX7fq/vdqx03weoSb03xd:lRXpBeU6n4PYB7l7oV0S8

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\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-2734\\ju7bd.exe"	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ju7bd = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-2734\\ju7bd.exe"	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-2734\Desktop.ini	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe

Modifies WinLogon 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\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-2734\\ju7bd.exe"	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 4992	2256	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	100

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	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4992	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe
4992	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 4992	2256	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	100
PID 2256 wrote to memory of 4992	2256	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	100
PID 2256 wrote to memory of 4992	2256	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	100
PID 2256 wrote to memory of 4992	2256	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	100
PID 2256 wrote to memory of 4992	2256	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	100
PID 2256 wrote to memory of 4992	2256	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	100
PID 2256 wrote to memory of 4992	2256	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	100
PID 4992 wrote to memory of 3584	4992	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	56
PID 4992 wrote to memory of 3584	4992	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	56
PID 4992 wrote to memory of 3584	4992	be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3584
- C:\Users\Admin\AppData\Local\Temp\be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2256
- - C:\Users\Admin\AppData\Local\Temp\be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe
    C:\Users\Admin\AppData\Local\Temp\be5b87e0bb953a1ab3496cf6f7fb5897_JaffaCakes118.exe
    3⤵
    - Modifies WinLogon for persistence
    - Adds Run key to start application
    - Drops desktop.ini file(s)
    - Modifies WinLogon
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4992

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

memory/2256-0-0x000000000040D000-0x000000000040E000-memory.dmp

Filesize
4KB

Download
memory/2256-1-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2256-4-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4992-2-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/4992-5-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download