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Analysis
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max time kernel
149s -
max time network
105s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21/08/2024, 08:53
Static task
static1
Behavioral task
behavioral1
Sample
b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe
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Size
312KB
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MD5
b2d597e090ca0cb921a2148fe7f746ab
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SHA1
1eadeee9fffdb5483db8b3b1d2d8e78ad3d0f1ac
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SHA256
5636ea8ba3dc2b5778fb9582a7bac8d15402243476cedad2be814272fcbde418
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SHA512
920bf3fdaf9c4a6ab15036d6d1d021dac2bbafa3f040d7acbeee69f485a3579725f115039b5af6fe2d8f5e41d967e90222484d69c80de57f87ff9cacbf500b05
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SSDEEP
6144:kk7tvTlIpr1f+XqO5aOmSGFDbeOjLPmUSgF:r1TlIB1f+55SpNPmUHF
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe Set value (int) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" letil.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 4968 letil.exe -
Adds Run key to start application 2 TTPs 14 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /j" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /p" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /r" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /t" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /i" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /x" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /h" b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /u" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /h" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /n" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /v" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /b" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /l" letil.exe Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\letil = "C:\\Users\\Admin\\letil.exe /o" letil.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language letil.exe -
Suspicious behavior: EnumeratesProcesses 40 IoCs
pid Process 1048 b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe 1048 b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe 4968 letil.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1048 b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe 4968 letil.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1048 wrote to memory of 4968 1048 b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe 99 PID 1048 wrote to memory of 4968 1048 b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe 99 PID 1048 wrote to memory of 4968 1048 b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\b2d597e090ca0cb921a2148fe7f746ab_JaffaCakes118.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Users\Admin\letil.exe"C:\Users\Admin\letil.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4968
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
312KB
MD51824f0f9044520912d04f83d21c0e50a
SHA1455e7aad419810f4b00290efb000c10d9cdd8288
SHA25635f10825afccb3ea3207eecedd3e136e011dbc0d98733d1154f55093ab541071
SHA512a1f7341139e080fa8288b94331d7cf8131677f18aff7ce36b46b9ca9857ea35f866fcd5aefec1de14426b7a66409255951f8f9c876e0b1e3122b990d7a3e4e00