Analysis
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max time kernel
33s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
01-07-2022 04:07
General
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Target
f73cf8983ba1581437ef86a24e97cde0929d9ee8d5224a834ab55353cb0fb5f3.exe
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Size
1.7MB
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MD5
85851bc9cecff7ec618e498f2f52ab5a
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SHA1
21f4efb62167f1e9b4f82d41ba3d09b58856f201
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SHA256
f73cf8983ba1581437ef86a24e97cde0929d9ee8d5224a834ab55353cb0fb5f3
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SHA512
c6cac25fd43ff4d821f991c19ecf47a2f8dcf66fdbff1ce377611093b7db925b0587bd15db23061bd03ae1ad380c6362c644734a5f6ae0e3e723c1500c62813f
Score
10/10
Malware Config
Extracted
Family
buer
C2
http://kload01.info/
http://kload02.info/
Signatures
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Buer
Buer is a new modular loader first seen in August 2019.
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Buer Loader 3 IoCs
Detects Buer loader in memory or disk.
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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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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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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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\f73cf8983ba1581437ef86a24e97cde0929d9ee8d5224a834ab55353cb0fb5f3.exe"C:\Users\Admin\AppData\Local\Temp\f73cf8983ba1581437ef86a24e97cde0929d9ee8d5224a834ab55353cb0fb5f3.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4.3MB
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Filesize
1.5MB
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Filesize
4.3MB
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Filesize
4.3MB
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Filesize
1.5MB
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Filesize
4.3MB