Analysis
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max time kernel
145s -
max time network
142s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-04-2024 05:04
Static task
static1
General
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Target
e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe
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Size
1.9MB
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MD5
42ad64483405b6ce53c4966870c902ec
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SHA1
c21642320252e799c8fdb2b88acf177254dccacf
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SHA256
e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521
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SHA512
62624070f30d2095ff53c0dee499c77f00e45c1c251a64cf18f7b885742ea0c5a0f4b931a01ecdbb10303be4763f6e7eb7d315ce13e2b8947df2d7ccbc0c2db0
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SSDEEP
49152:JzJDEdJKf9YW60mnIZ8dBbFwSJ9jtFVSu1oU09z8:JzJDGIf9YJ0oI6BBwSRxc
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:
e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exechrosha.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 3 1976 rundll32.exe 4 1792 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:
e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exechrosha.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion chrosha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion chrosha.exe -
Executes dropped EXE 1 IoCs
Processes:
chrosha.exepid process 568 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:
e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Wine e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe Key opened \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Wine chrosha.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 4896 rundll32.exe 1976 rundll32.exe 1792 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:
e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exechrosha.exepid process 2184 e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe 568 chrosha.exe -
Drops file in Windows directory 1 IoCs
Processes:
e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exedescription ioc process File created C:\Windows\Tasks\chrosha.job e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exechrosha.exerundll32.exepowershell.exepid process 2184 e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe 2184 e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe 568 chrosha.exe 568 chrosha.exe 1976 rundll32.exe 1976 rundll32.exe 1976 rundll32.exe 1976 rundll32.exe 1976 rundll32.exe 1976 rundll32.exe 1976 rundll32.exe 1976 rundll32.exe 1976 rundll32.exe 1976 rundll32.exe 2392 powershell.exe 2392 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2392 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
chrosha.exerundll32.exerundll32.exedescription pid process target process PID 568 wrote to memory of 4896 568 chrosha.exe rundll32.exe PID 568 wrote to memory of 4896 568 chrosha.exe rundll32.exe PID 568 wrote to memory of 4896 568 chrosha.exe rundll32.exe PID 4896 wrote to memory of 1976 4896 rundll32.exe rundll32.exe PID 4896 wrote to memory of 1976 4896 rundll32.exe rundll32.exe PID 1976 wrote to memory of 1192 1976 rundll32.exe netsh.exe PID 1976 wrote to memory of 1192 1976 rundll32.exe netsh.exe PID 1976 wrote to memory of 2392 1976 rundll32.exe powershell.exe PID 1976 wrote to memory of 2392 1976 rundll32.exe powershell.exe PID 568 wrote to memory of 1792 568 chrosha.exe rundll32.exe PID 568 wrote to memory of 1792 568 chrosha.exe rundll32.exe PID 568 wrote to memory of 1792 568 chrosha.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.exe"C:\Users\Admin\AppData\Local\Temp\e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521.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:2184
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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
- Suspicious use of WriteProcessMemory
PID:568 -
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:4896 -
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:1976 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:1192
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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\263309122282_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2392 -
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:1792
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
192KB
MD5eb1e230daf8261c0b7c0c1c1625db1ae
SHA14930da87b20005a7ae8100c0e1fff2c35537f1a8
SHA256a57b4ce5504e020ab941cd229bbba0a5eee8edb4ced8d83e058a1a02cf94cd63
SHA512fe6a0cf681edccbed68673fd569cd2fd5ac048f23c9558f3503c8e0a0169a1e20b9beb3a4c5ad722d4f2c987902cb16394c65d0730af33e22aa1053d2ded2562
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Filesize
1.9MB
MD542ad64483405b6ce53c4966870c902ec
SHA1c21642320252e799c8fdb2b88acf177254dccacf
SHA256e5fb190cb34afa45533f59258b8415cd2788042a5e7b83b2c1560c0189b3a521
SHA51262624070f30d2095ff53c0dee499c77f00e45c1c251a64cf18f7b885742ea0c5a0f4b931a01ecdbb10303be4763f6e7eb7d315ce13e2b8947df2d7ccbc0c2db0
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Filesize
192KB
MD537522c840922ff982376e94ff9b35f7d
SHA12ae5de9b2d6717f9072a9cb13fc779d471e70010
SHA256b996ae20709f7995a64b1210a6152c7f486b7d7509d4a38a0346225a7d6ca083
SHA512c80b1d9fa98594ca83471ef353e49b8e9a93591412bc1b889b796969907f938be79a423e8d48fd96e1a48f4e33c3f66f3117698a01659c8e0bb6e5540663e505
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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