Analysis
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max time kernel
141s -
max time network
130s -
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 04:52
Static task
static1
Behavioral task
behavioral1
Sample
ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exe
Resource
win10v2004-20240426-en
General
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Target
ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exe
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Size
1.8MB
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MD5
d0593c9c56d1f897206d9e748570a458
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SHA1
7d9311edff37e0a3ff87b4a6f29ff132455cb86e
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SHA256
ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6
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SHA512
caec9aaa4467af46efc31b86e0a6acb2edc08e3ea64fc286cdc02d84fd804160d4fd01d383c900238e93e66900185e75ca495735d6054a5e7a693ecb62004309
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SSDEEP
49152:STq1WoYcSibgIlCRMu6a8ge+aWstKFbUELMfpiL7Gj4:0ibg/NCDKBLMf9
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:
ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exechrosha.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.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.exeea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.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 ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exe -
Executes dropped EXE 1 IoCs
Processes:
chrosha.exepid process 3088 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:
ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exe Key opened \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine chrosha.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exechrosha.exepid process 2012 ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exe 3088 chrosha.exe -
Drops file in Windows directory 1 IoCs
Processes:
ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exedescription ioc process File created C:\Windows\Tasks\chrosha.job ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.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:
ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exechrosha.exepid process 2012 ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exe 2012 ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exe 3088 chrosha.exe 3088 chrosha.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.exe"C:\Users\Admin\AppData\Local\Temp\ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6.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
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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
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exeFilesize
1.8MB
MD5d0593c9c56d1f897206d9e748570a458
SHA17d9311edff37e0a3ff87b4a6f29ff132455cb86e
SHA256ea58b781b3e142012c522bc21df755b13f267eb652a8f0a2cfb21c4739e666b6
SHA512caec9aaa4467af46efc31b86e0a6acb2edc08e3ea64fc286cdc02d84fd804160d4fd01d383c900238e93e66900185e75ca495735d6054a5e7a693ecb62004309
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memory/2012-5-0x0000000005260000-0x0000000005261000-memory.dmpFilesize
4KB
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memory/2012-2-0x0000000000F50000-0x00000000013F9000-memory.dmpFilesize
4.7MB
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memory/2012-8-0x0000000005240000-0x0000000005241000-memory.dmpFilesize
4KB
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memory/2012-7-0x0000000005210000-0x0000000005211000-memory.dmpFilesize
4KB
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memory/2012-6-0x0000000005200000-0x0000000005201000-memory.dmpFilesize
4KB
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memory/2012-0-0x0000000000F50000-0x00000000013F9000-memory.dmpFilesize
4.7MB
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memory/2012-4-0x0000000005220000-0x0000000005221000-memory.dmpFilesize
4KB
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memory/2012-3-0x0000000005230000-0x0000000005231000-memory.dmpFilesize
4KB
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memory/2012-9-0x0000000005290000-0x0000000005291000-memory.dmpFilesize
4KB
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memory/2012-10-0x0000000005280000-0x0000000005281000-memory.dmpFilesize
4KB
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memory/2012-16-0x0000000000F50000-0x00000000013F9000-memory.dmpFilesize
4.7MB
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memory/2012-1-0x0000000077736000-0x0000000077738000-memory.dmpFilesize
8KB
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memory/3088-22-0x0000000004B20000-0x0000000004B21000-memory.dmpFilesize
4KB
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memory/3088-28-0x0000000004B80000-0x0000000004B81000-memory.dmpFilesize
4KB
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memory/3088-21-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
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memory/3088-19-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-24-0x0000000004B00000-0x0000000004B01000-memory.dmpFilesize
4KB
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memory/3088-23-0x0000000004B60000-0x0000000004B61000-memory.dmpFilesize
4KB
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memory/3088-25-0x0000000004B10000-0x0000000004B11000-memory.dmpFilesize
4KB
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memory/3088-26-0x0000000004B40000-0x0000000004B41000-memory.dmpFilesize
4KB
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memory/3088-27-0x0000000004B90000-0x0000000004B91000-memory.dmpFilesize
4KB
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memory/3088-20-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-29-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-30-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-31-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-32-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-33-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-34-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-35-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-36-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-37-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB
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memory/3088-38-0x0000000000CE0000-0x0000000001189000-memory.dmpFilesize
4.7MB