Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
20-04-2024 17:46
General
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Target
fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
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Size
1.7MB
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MD5
fd49374b6bf5ddfcf665a110da75f127
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SHA1
b45353452bc2d9e1a93fd35a4438f97a068af1bf
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SHA256
c2f96661a63e6a894a46ae5bf83f85c3f9fa74cf20cc7b6d34b4888289ea7ae4
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SHA512
a43d9e63b4d1dff27e03fda00f347dabbf640c1a5e51397a15662a48050decbd8f908b8e63f16de75bafbe1ab0fece3fb689ced3d503e0a406a30b12997d2d50
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SSDEEP
49152:k6MLyu3iyTEk+EPmk4O+jJWuuiA2TxyNwycImYYNZ:ktGwiq+EP+ZnuiA21yNw3Imd/
Malware Config
Signatures
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Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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Renames multiple (192) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Identifies Wine through registry keys
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
196B
MD5593315f8f4d3337a6fa10980eb1a8459
SHA1d4865a0c50b100f817e147541efcdca7a34e4fbd
SHA2569fc95ab4b5f6e41aeb79aa5e77bb97e28e38df4eba77f5797b8a28749c005f26
SHA51260e7ebf8729701c4a022708b399bb250eb4622a7b7d8e9ba636f65bc163622243f92997ee9b88ec47b57176dad0c966e0d8c2a51aa00de5ee80fc65d2ca3b469
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Filesize
4.4MB
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Filesize
8KB
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Filesize
4KB
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Filesize
4.4MB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4.4MB