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Analysis
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max time kernel
143s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
23/06/2024, 23:18
Static task
static1
Behavioral task
behavioral1
Sample
03f1bdb01e2b181479cca69278015fba_JaffaCakes118.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
03f1bdb01e2b181479cca69278015fba_JaffaCakes118.dll
Resource
win10v2004-20240226-en
General
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Target
03f1bdb01e2b181479cca69278015fba_JaffaCakes118.dll
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Size
236KB
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MD5
03f1bdb01e2b181479cca69278015fba
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SHA1
700e6362114599bab76c4f46c5828cd28012f2e3
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SHA256
c61aeb846b7a1c0859c4343222da8005dd54746fa51e55d7610eb7b1dd7b4f94
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SHA512
2c67f8eb009f94a9a38e8369bcf0f23b5fe07b56e34332d43aef465779704e420e190d755295d684e299bc545cf4b0d98989527814a5838c7dbe523c418f36fa
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SSDEEP
1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvMR:Go256vS0RJAL+lHPKi40+66iwkD0a
Malware Config
Signatures
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Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\qkf = "{e25df941-6ad5-bf2a-7be6-6ad571c98535}" rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 4248 rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\lfa.dll rundll32.exe File created C:\Windows\SysWOW64\dxs.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\dxs.dll rundll32.exe File created C:\Windows\SysWOW64\lfa.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e25df941-6ad5-bf2a-7be6-6ad571c98535}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e25df941-6ad5-bf2a-7be6-6ad571c98535}\InprocServer32\ = "C:\\Windows\\SysWow64\\lfa.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e25df941-6ad5-bf2a-7be6-6ad571c98535}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e25df941-6ad5-bf2a-7be6-6ad571c98535} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e25df941-6ad5-bf2a-7be6-6ad571c98535}\ rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4248 rundll32.exe 4248 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4248 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4248 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4484 wrote to memory of 4248 4484 rundll32.exe 93 PID 4484 wrote to memory of 4248 4484 rundll32.exe 93 PID 4484 wrote to memory of 4248 4484 rundll32.exe 93
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\03f1bdb01e2b181479cca69278015fba_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4484 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\03f1bdb01e2b181479cca69278015fba_JaffaCakes118.dll,#12⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4248
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3972 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:81⤵PID:3776
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
478KB
MD5e99416267b61f52fa5ab994019efd359
SHA186d31eae707db7fe51d2556394fcf0e8e9f6b0fd
SHA256768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774
SHA5120a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae