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Resubmissions
22/09/2024, 09:23
240922-lcmh6ssclm 921/09/2024, 08:10
240921-j2tbxasfjj 921/09/2024, 07:38
240921-jggsda1gjl 928/07/2024, 17:11
240728-vp9c5syajh 1018/06/2024, 14:08
240618-rfnhjaxanf 10Analysis
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max time kernel
135s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
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submitted
21/09/2024, 07:38
General
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Target
WZAgent.exe
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Size
26.2MB
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MD5
4cf978f2749291d8d9a722cf8bd9d9ea
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SHA1
2580a9be8bc6994987cc4951a4690efd7077ea92
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SHA256
ea8779bb436427af92289d75ee7510e1784bf6772729091abcc350cdf773058c
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SHA512
d1ba2ea6a06cf5241bd26319b7bd2da7cb3ca0453496703fa66413cc56edf9893414a970dfb67451cfb85ef735305986958ba852287b3dc63b7cf28ab351d61d
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SSDEEP
786432:Ov1EWULlsocwpd3XHEquH6rdEePFG/7vG43EY6:Ov1EWusor8j6r714
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
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Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 2 IoCs
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Loads dropped DLL 2 IoCs
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Obfuscated with Agile.Net obfuscator 8 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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Themida packer 19 IoCs
Detects Themida, an advanced Windows software protection system.
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Checks whether UAC is enabled 1 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 5 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\WZAgent.exe"C:\Users\Admin\AppData\Local\Temp\WZAgent.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ZipExtractor.exe"C:\Users\Admin\AppData\Local\Temp\ZipExtractor.exe" --input C:\Users\Admin\AppData\Local\Temp\WZAgent.zip --output C:\Users\Admin\AppData\Local\Temp --current-exe C:\Users\Admin\AppData\Local\Temp\WZAgent.exe --updated-exe WZAgent.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\WZAgent.exe"C:\Users\Admin\AppData\Local\Temp\WZAgent.exe"3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
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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 --field-trial-handle=4452,i,15336851255456239337,16379811035920490645,262144 --variations-seed-version --mojo-platform-channel-handle=4012 /prefetch:81⤵
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5c8f9bb079b95f0f981f33f1ac3058078
SHA151c811e8e50c47fac5710f3282eed71614069b3b
SHA2569128311603d540106ceede1f308e42360a43e6021fec575d2d5505365007b2fa
SHA512c2b2c425812a6c3fe5886198e1d757a0ff706937847035f7ba99707946122f39717ea0eae3c41642632ca9d1ca2901ab5a04b7db26aa35a5d769a1f1e91669dc
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Filesize
4.0MB
MD58e839b26c5efed6f41d6e854e5e97f5b
SHA15cb71374f72bf6a63ff65a6cda57ff66c3e54836
SHA2561f2489fcd11f85db723f977f068988e81ed28581a4aec352ba4a2dc31419a011
SHA51292446d7c2ccf41408d0a6be604b9aba3050192b40be887c2cee8f9aea0bd855503d6b827a8bdd554addd8d7c8ec947033f49060db493f756c3b2b70c04a17093
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Filesize
28.3MB
MD51b31864d1dd63f9ebb768da2cd340e9c
SHA12d56fff3f73bc880e614467341fdeab9474ffae7
SHA2564b91eb1c4d27fee6d634c73e0d550024c144ca8eff9f64d03f87011fe35cd3eb
SHA5124c9423460476835d15ec57d0571e35ad7551f11181063b1730d5f0ad88c841ad22aeda1f1311089335892e52456f322cf0ac5d1df86209cd9e6b6f004fe9b856
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Filesize
28.1MB
MD57908d2ae983310b8d30bd332c00189b4
SHA1874b30d386ba1f6644ff1287e2eeb782d9a9e759
SHA25615d8b52eb4181b1c4ab1b2ba78898f9eb50de78d1c22d5d6281cb07e6f6f91b8
SHA512a6f9d4dd82c97afc6238c9408fa9c27dcaffca36f5dbf60efd8a32918a0e2ff42eb21fe0feb2c5de480bd8a9996d4ba21a9e47643faea0c41de3277a4d8d4b68
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Filesize
99KB
MD56c8a405b8243837682378cfbefa92001
SHA121a120c6fcca8aff536cb896586131376497bc86
SHA256a76c4d20c78a6b0e563567a215e14a05525c316bf4eb92e7d11de7e24ae0b7c2
SHA51212a75d7c4f9af4209a673c994609a15f464368e24eb61e8251a3f8c32a371825809f8197ea47428a150bc0c8ca7b5278c88c63cf9c20a7e60a95f4f98eea3de7
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Filesize
4KB
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Filesize
1.9MB
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Filesize
2.8MB
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Filesize
34.0MB
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Filesize
11.2MB
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Filesize
2.8MB
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Filesize
11.2MB
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Filesize
1.3MB
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Filesize
34.0MB
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Filesize
2.8MB
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Filesize
2.8MB
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Filesize
14.3MB
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Filesize
472KB
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Filesize
34.0MB
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Filesize
11.2MB
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Filesize
2.8MB
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Filesize
11.2MB
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Filesize
2.8MB
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Filesize
2.8MB
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Filesize
34.0MB
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Filesize
11.2MB
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Filesize
2.8MB
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Filesize
34.0MB
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Filesize
2.8MB
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Filesize
4KB
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Filesize
11.2MB
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Filesize
1.3MB
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Filesize
35.9MB
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Filesize
35.9MB
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Filesize
35.9MB
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Filesize
35.9MB
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Filesize
11.2MB
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Filesize
11.2MB
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Filesize
11.2MB
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Filesize
11.2MB
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Filesize
35.9MB
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Filesize
16.4MB
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Filesize
11.2MB
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Filesize
712KB
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Filesize
472KB
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Filesize
40KB
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Filesize
120KB
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Filesize
72KB