Resubmissions
19/03/2024, 18:11
240319-wsv6csag29903/03/2024, 11:21
240303-nf56sshf9v903/03/2024, 11:15
240303-ncwg7aaa939Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
03/03/2024, 11:15
General
- Target o_0/loader.exe
- Size 4.1MB
- Sample240303-ncwg7aaa93
- SHA256 60c57f14c2e0e0df0bda16646b21dddceaee0159dafbbb8daba310d4e1b5be6c
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Themida packer 17 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\o_0\loader.exe"C:\Users\Admin\AppData\Local\Temp\o_0\loader.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\o_0\loader.exe" MD5 | find /i /v "md5" | find /i /v "certutil"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\certutil.execertutil -hashfile "C:\Users\Admin\AppData\Local\Temp\o_0\loader.exe" MD53⤵
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C:\Windows\system32\find.exefind /i /v "md5"3⤵
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C:\Windows\system32\find.exefind /i /v "certutil"3⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/4588-0-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-1-0x00007FFB95830000-0x00007FFB95A25000-memory.dmp
memory/4588-2-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-3-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-4-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-5-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-6-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-7-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-8-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-9-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-10-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-11-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-12-0x00007FFB95830000-0x00007FFB95A25000-memory.dmp
memory/4588-13-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-14-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-15-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-16-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-17-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp
memory/4588-22-0x00007FF7542E0000-0x00007FF754D7F000-memory.dmp