Analysis
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max time kernel
141s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
29-04-2024 08:28
Static task
static1
Behavioral task
behavioral1
Sample
58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe
Resource
win11-20240426-en
General
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Target
58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe
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Size
1.8MB
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MD5
923c53f17b938b35c2cf133096c92cbd
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SHA1
a23f742a606a7452791be367f5a403841c33a6ea
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SHA256
58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2
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SHA512
221a27dcbd1728942a9de4e159e6a7493f3f1eb749b6b96ddd2f15654f9bbd6e08a32dff92ec8450afcf0a7b6c4a4c845f2d9bf8ad63a8ae3eac4b4b3d9b818d
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SSDEEP
49152:Ml4YdGCGA0dAJ53+ENHbexvKr8Zt1ZNX5Ti:4t1zJ53/HCxvvZH/XZ
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
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe -
Blocklisted process makes network request 2 IoCs
flow pid Process 50 4536 rundll32.exe 52 3828 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.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.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.
description 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
pid Process 1116 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.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Wine 58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Wine chrosha.exe -
Loads dropped DLL 3 IoCs
pid Process 1708 rundll32.exe 4536 rundll32.exe 3828 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
pid Process 2252 58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe 1116 chrosha.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\chrosha.job 58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.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
pid Process 2252 58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe 2252 58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe 1116 chrosha.exe 1116 chrosha.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe 4860 powershell.exe 4860 powershell.exe 4860 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4860 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2252 58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1116 wrote to memory of 1708 1116 chrosha.exe 101 PID 1116 wrote to memory of 1708 1116 chrosha.exe 101 PID 1116 wrote to memory of 1708 1116 chrosha.exe 101 PID 1708 wrote to memory of 4536 1708 rundll32.exe 102 PID 1708 wrote to memory of 4536 1708 rundll32.exe 102 PID 4536 wrote to memory of 1476 4536 rundll32.exe 103 PID 4536 wrote to memory of 1476 4536 rundll32.exe 103 PID 4536 wrote to memory of 4860 4536 rundll32.exe 105 PID 4536 wrote to memory of 4860 4536 rundll32.exe 105 PID 1116 wrote to memory of 3828 1116 chrosha.exe 107 PID 1116 wrote to memory of 3828 1116 chrosha.exe 107 PID 1116 wrote to memory of 3828 1116 chrosha.exe 107
Processes
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C:\Users\Admin\AppData\Local\Temp\58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe"C:\Users\Admin\AppData\Local\Temp\58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.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:2252
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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:1116 -
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:1708 -
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:4536 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:1476
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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:4860
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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:3828
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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=4136 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:81⤵PID:3172
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.8MB
MD5923c53f17b938b35c2cf133096c92cbd
SHA1a23f742a606a7452791be367f5a403841c33a6ea
SHA25658adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2
SHA512221a27dcbd1728942a9de4e159e6a7493f3f1eb749b6b96ddd2f15654f9bbd6e08a32dff92ec8450afcf0a7b6c4a4c845f2d9bf8ad63a8ae3eac4b4b3d9b818d
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
109KB
MD5154c3f1334dd435f562672f2664fea6b
SHA151dd25e2ba98b8546de163b8f26e2972a90c2c79
SHA2565f431129f97f3d56929f1e5584819e091bd6c854d7e18503074737fc6d79e33f
SHA5121bca69bbcdb7ecd418769e9d4befc458f9f8e3cee81feb7316bb61e189e2904f4431e4cc7d291e179a5dec441b959d428d8e433f579036f763bbad6460222841
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Filesize
1.2MB
MD5f35b671fda2603ec30ace10946f11a90
SHA1059ad6b06559d4db581b1879e709f32f80850872
SHA25683e3df5bec15d5333935bea8b719a6d677e2fb3dc1cf9e18e7b82fd0438285c7
SHA512b5fa27d08c64727cef7fdda5e68054a4359cd697df50d70d1d90da583195959a139066a6214531bbc5f20cd4f9bc1ca3e4244396547381291a6a1d2df9cf8705