Analysis
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max time kernel
155s -
max time network
166s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
21-04-2024 11:54
Static task
static1
Behavioral task
behavioral1
Sample
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe
Resource
win11-20240412-en
General
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Target
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe
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Size
1.8MB
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MD5
3d4397786288039d61fc9910c08907d6
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SHA1
7abf7e78cb21394cd4a2cbdc552bccaa89c7597d
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SHA256
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947
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SHA512
8c9bedbd1131ef62ba1b75eef622f0eadad03389086afd2b30460ffd4a2f29d4dce5a0c5c2b4fea7241c29e8159238b8be8b0851c90d9165723e561bb65f2362
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SSDEEP
49152:8/fdU6c0ymXOkxEK6qYPFHCDD004KgjW1XAC:AimXOPKUPQDD/4KgjW1X
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:
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exechrosha.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 46 3852 rundll32.exe 47 2136 rundll32.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exechrosha.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion chrosha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion chrosha.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
chrosha.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation chrosha.exe -
Executes dropped EXE 1 IoCs
Processes:
chrosha.exepid process 4740 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:
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Wine d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Wine chrosha.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 5108 rundll32.exe 3852 rundll32.exe 2136 rundll32.exe -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exechrosha.exepid process 772 d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe 4740 chrosha.exe -
Drops file in Windows directory 1 IoCs
Processes:
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exedescription ioc process File created C:\Windows\Tasks\chrosha.job d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 17 IoCs
Processes:
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exechrosha.exerundll32.exepowershell.exepid process 772 d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe 772 d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe 4740 chrosha.exe 4740 chrosha.exe 3852 rundll32.exe 3852 rundll32.exe 3852 rundll32.exe 3852 rundll32.exe 3852 rundll32.exe 3852 rundll32.exe 3852 rundll32.exe 3852 rundll32.exe 3852 rundll32.exe 3852 rundll32.exe 2612 powershell.exe 2612 powershell.exe 2612 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2612 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exepid process 772 d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
chrosha.exerundll32.exerundll32.exedescription pid process target process PID 4740 wrote to memory of 5108 4740 chrosha.exe rundll32.exe PID 4740 wrote to memory of 5108 4740 chrosha.exe rundll32.exe PID 4740 wrote to memory of 5108 4740 chrosha.exe rundll32.exe PID 5108 wrote to memory of 3852 5108 rundll32.exe rundll32.exe PID 5108 wrote to memory of 3852 5108 rundll32.exe rundll32.exe PID 3852 wrote to memory of 2872 3852 rundll32.exe netsh.exe PID 3852 wrote to memory of 2872 3852 rundll32.exe netsh.exe PID 3852 wrote to memory of 2612 3852 rundll32.exe powershell.exe PID 3852 wrote to memory of 2612 3852 rundll32.exe powershell.exe PID 4740 wrote to memory of 2136 4740 chrosha.exe rundll32.exe PID 4740 wrote to memory of 2136 4740 chrosha.exe rundll32.exe PID 4740 wrote to memory of 2136 4740 chrosha.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe"C:\Users\Admin\AppData\Local\Temp\d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.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
- Suspicious use of FindShellTrayWindow
PID:772
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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 --no-appcompat-clear --mojo-platform-channel-handle=4076 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:81⤵PID:1572
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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
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4740 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:5108 -
C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3852 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:2872
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\808065738166_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2612 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main2⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:2136
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exeFilesize
1.8MB
MD53d4397786288039d61fc9910c08907d6
SHA17abf7e78cb21394cd4a2cbdc552bccaa89c7597d
SHA256d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947
SHA5128c9bedbd1131ef62ba1b75eef622f0eadad03389086afd2b30460ffd4a2f29d4dce5a0c5c2b4fea7241c29e8159238b8be8b0851c90d9165723e561bb65f2362
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z5ihykm4.qmq.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dllFilesize
109KB
MD5154c3f1334dd435f562672f2664fea6b
SHA151dd25e2ba98b8546de163b8f26e2972a90c2c79
SHA2565f431129f97f3d56929f1e5584819e091bd6c854d7e18503074737fc6d79e33f
SHA5121bca69bbcdb7ecd418769e9d4befc458f9f8e3cee81feb7316bb61e189e2904f4431e4cc7d291e179a5dec441b959d428d8e433f579036f763bbad6460222841
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C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dllFilesize
1.2MB
MD5f35b671fda2603ec30ace10946f11a90
SHA1059ad6b06559d4db581b1879e709f32f80850872
SHA25683e3df5bec15d5333935bea8b719a6d677e2fb3dc1cf9e18e7b82fd0438285c7
SHA512b5fa27d08c64727cef7fdda5e68054a4359cd697df50d70d1d90da583195959a139066a6214531bbc5f20cd4f9bc1ca3e4244396547381291a6a1d2df9cf8705
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memory/772-9-0x0000000004EB0000-0x0000000004EB1000-memory.dmpFilesize
4KB
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memory/772-11-0x0000000004EE0000-0x0000000004EE1000-memory.dmpFilesize
4KB
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memory/772-6-0x0000000004E50000-0x0000000004E51000-memory.dmpFilesize
4KB
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memory/772-8-0x0000000004E60000-0x0000000004E61000-memory.dmpFilesize
4KB
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memory/772-3-0x0000000004E80000-0x0000000004E81000-memory.dmpFilesize
4KB
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memory/772-7-0x0000000004E70000-0x0000000004E71000-memory.dmpFilesize
4KB
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memory/772-10-0x0000000000380000-0x0000000000823000-memory.dmpFilesize
4.6MB
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memory/772-5-0x0000000004EC0000-0x0000000004EC1000-memory.dmpFilesize
4KB
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memory/772-12-0x0000000004ED0000-0x0000000004ED1000-memory.dmpFilesize
4KB
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memory/772-17-0x0000000000380000-0x0000000000823000-memory.dmpFilesize
4.6MB
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memory/772-4-0x0000000004E90000-0x0000000004E91000-memory.dmpFilesize
4KB
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memory/772-2-0x0000000000380000-0x0000000000823000-memory.dmpFilesize
4.6MB
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memory/772-0-0x0000000000380000-0x0000000000823000-memory.dmpFilesize
4.6MB
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memory/772-1-0x0000000077A14000-0x0000000077A16000-memory.dmpFilesize
8KB
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memory/2612-57-0x000001F26B050000-0x000001F26B060000-memory.dmpFilesize
64KB
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memory/2612-66-0x00007FFE89670000-0x00007FFE8A131000-memory.dmpFilesize
10.8MB
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memory/2612-60-0x000001F26B0E0000-0x000001F26B0EA000-memory.dmpFilesize
40KB
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memory/2612-59-0x000001F26B590000-0x000001F26B5A2000-memory.dmpFilesize
72KB
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memory/2612-58-0x000001F26B050000-0x000001F26B060000-memory.dmpFilesize
64KB
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memory/2612-56-0x000001F26B050000-0x000001F26B060000-memory.dmpFilesize
64KB
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memory/2612-55-0x00007FFE89670000-0x00007FFE8A131000-memory.dmpFilesize
10.8MB
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memory/2612-50-0x000001F26B090000-0x000001F26B0B2000-memory.dmpFilesize
136KB
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memory/4740-24-0x0000000004B80000-0x0000000004B81000-memory.dmpFilesize
4KB
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memory/4740-82-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-44-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-30-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-27-0x0000000004B70000-0x0000000004B71000-memory.dmpFilesize
4KB
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memory/4740-28-0x0000000004BF0000-0x0000000004BF1000-memory.dmpFilesize
4KB
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memory/4740-29-0x0000000004BE0000-0x0000000004BE1000-memory.dmpFilesize
4KB
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memory/4740-26-0x0000000004B60000-0x0000000004B61000-memory.dmpFilesize
4KB
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memory/4740-84-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-43-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-21-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-25-0x0000000004BC0000-0x0000000004BC1000-memory.dmpFilesize
4KB
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memory/4740-20-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-78-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-79-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-80-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-81-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-23-0x0000000004BA0000-0x0000000004BA1000-memory.dmpFilesize
4KB
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memory/4740-83-0x00000000001D0000-0x0000000000673000-memory.dmpFilesize
4.6MB
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memory/4740-22-0x0000000004B90000-0x0000000004B91000-memory.dmpFilesize
4KB