Analysis
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max time kernel
142s -
max time network
146s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
28-04-2024 08:28
Static task
static1
Behavioral task
behavioral1
Sample
04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe
Resource
win10v2004-20240419-en
General
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Target
04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe
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Size
1.8MB
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MD5
55027c84a3fa77944f2b617a805398e6
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SHA1
9eb4a5bab2b04958ed519d9d5c0c7f9a02c7a2be
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SHA256
04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472
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SHA512
63d066efa2ac2fc2dc0cce3fd90e46327b930abeab8751e1b81f511420680a9c6644e594d41970b19f67f93e612205aef65d620360f5744a31dba3adfaf94222
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SSDEEP
24576:IcSXFq/Vn7sCodi6zSjAHwgQzPHrICGWl7019kqiXpkWHQIvlKL7/4WwQED1wSPx:oTyjdbLICGWl7017fXIgQW01zMwO8TX
Malware Config
Extracted
amadey
4.17
http://193.233.132.167
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install_dir
4d0ab15804
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install_file
chrosha.exe
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strings_key
1a9519d7b465e1f4880fa09a6162d768
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url_paths
/enigma/index.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
Processes:
04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exechrosha.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
chrosha.exe04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion chrosha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion chrosha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe -
Executes dropped EXE 1 IoCs
Processes:
chrosha.exepid process 3412 chrosha.exe -
Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\Software\Wine 04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe Key opened \REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\Software\Wine chrosha.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exechrosha.exepid process 4236 04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe 3412 chrosha.exe -
Drops file in Windows directory 1 IoCs
Processes:
04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exedescription ioc process File created C:\Windows\Tasks\chrosha.job 04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exechrosha.exepid process 4236 04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe 4236 04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe 3412 chrosha.exe 3412 chrosha.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.exe"C:\Users\Admin\AppData\Local\Temp\04b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472.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
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4236
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C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exeC:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3412
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exeFilesize
1.8MB
MD555027c84a3fa77944f2b617a805398e6
SHA19eb4a5bab2b04958ed519d9d5c0c7f9a02c7a2be
SHA25604b05d72679b657e55f0bc84630320a87f1830df3989b8b2d3330358969b6472
SHA51263d066efa2ac2fc2dc0cce3fd90e46327b930abeab8751e1b81f511420680a9c6644e594d41970b19f67f93e612205aef65d620360f5744a31dba3adfaf94222
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memory/3412-29-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-31-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-39-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-38-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-23-0x00000000050C0000-0x00000000050C1000-memory.dmpFilesize
4KB
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memory/3412-37-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-36-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-22-0x0000000005080000-0x0000000005081000-memory.dmpFilesize
4KB
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memory/3412-35-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-21-0x00000000050A0000-0x00000000050A1000-memory.dmpFilesize
4KB
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memory/3412-34-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-33-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-18-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-19-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-25-0x0000000005070000-0x0000000005071000-memory.dmpFilesize
4KB
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memory/3412-24-0x0000000005060000-0x0000000005061000-memory.dmpFilesize
4KB
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memory/3412-32-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-30-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-28-0x0000000000610000-0x0000000000AB9000-memory.dmpFilesize
4.7MB
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memory/3412-20-0x0000000005090000-0x0000000005091000-memory.dmpFilesize
4KB
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memory/3412-26-0x00000000050F0000-0x00000000050F1000-memory.dmpFilesize
4KB
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memory/3412-27-0x00000000050E0000-0x00000000050E1000-memory.dmpFilesize
4KB
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memory/4236-10-0x0000000004DD0000-0x0000000004DD1000-memory.dmpFilesize
4KB
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memory/4236-0-0x0000000000F10000-0x00000000013B9000-memory.dmpFilesize
4.7MB
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memory/4236-3-0x0000000004D80000-0x0000000004D81000-memory.dmpFilesize
4KB
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memory/4236-4-0x0000000004D70000-0x0000000004D71000-memory.dmpFilesize
4KB
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memory/4236-6-0x0000000004D50000-0x0000000004D51000-memory.dmpFilesize
4KB
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memory/4236-1-0x0000000077BC6000-0x0000000077BC8000-memory.dmpFilesize
8KB
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memory/4236-15-0x0000000000F10000-0x00000000013B9000-memory.dmpFilesize
4.7MB
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memory/4236-11-0x0000000004DC0000-0x0000000004DC1000-memory.dmpFilesize
4KB
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memory/4236-2-0x0000000000F10000-0x00000000013B9000-memory.dmpFilesize
4.7MB
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memory/4236-5-0x0000000004DB0000-0x0000000004DB1000-memory.dmpFilesize
4KB
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memory/4236-7-0x0000000004D60000-0x0000000004D61000-memory.dmpFilesize
4KB
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memory/4236-8-0x0000000004D90000-0x0000000004D91000-memory.dmpFilesize
4KB