Analysis
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max time kernel
142s -
max time network
136s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-04-2024 11:53
Static task
static1
Behavioral task
behavioral1
Sample
109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe
Resource
win10v2004-20240412-en
General
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Target
109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe
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Size
1.8MB
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MD5
2a8b619eb5a30100c4956154a1c8bf76
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SHA1
5050ec6ab243410968b7ed0db9f00dbf26eac641
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SHA256
109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033
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SHA512
bb7b3a646b89f234230dd0a997905fa441661bcbb2570eb9a6fbb500e5e2f5c6f5bb75555bc8530bd48d7e524878bfa68bb4d9f8cf6da33eaf14591de174cc11
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SSDEEP
49152:rcmTOsvJfzcIPllJZcOifMZa09RtkobNGZrjgHiviM9FVCv:rjTOCJfxlKOGMZ5RtkocZoCvxl
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:
109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exechrosha.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 25 5344 rundll32.exe 26 556 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:
chrosha.exe109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.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 109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe -
Executes dropped EXE 1 IoCs
Processes:
chrosha.exepid process 4036 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:
109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Wine 109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe Key opened \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Wine chrosha.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 1916 rundll32.exe 5344 rundll32.exe 556 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:
109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exechrosha.exepid process 4632 109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe 4036 chrosha.exe -
Drops file in Windows directory 1 IoCs
Processes:
109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exedescription ioc process File created C:\Windows\Tasks\chrosha.job 109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.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:
109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exechrosha.exerundll32.exepowershell.exepid process 4632 109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe 4632 109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe 4036 chrosha.exe 4036 chrosha.exe 5344 rundll32.exe 5344 rundll32.exe 5344 rundll32.exe 5344 rundll32.exe 5344 rundll32.exe 5344 rundll32.exe 5344 rundll32.exe 5344 rundll32.exe 5344 rundll32.exe 5344 rundll32.exe 1624 powershell.exe 1624 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1624 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
chrosha.exerundll32.exerundll32.exedescription pid process target process PID 4036 wrote to memory of 1916 4036 chrosha.exe rundll32.exe PID 4036 wrote to memory of 1916 4036 chrosha.exe rundll32.exe PID 4036 wrote to memory of 1916 4036 chrosha.exe rundll32.exe PID 1916 wrote to memory of 5344 1916 rundll32.exe rundll32.exe PID 1916 wrote to memory of 5344 1916 rundll32.exe rundll32.exe PID 5344 wrote to memory of 2296 5344 rundll32.exe netsh.exe PID 5344 wrote to memory of 2296 5344 rundll32.exe netsh.exe PID 5344 wrote to memory of 1624 5344 rundll32.exe powershell.exe PID 5344 wrote to memory of 1624 5344 rundll32.exe powershell.exe PID 4036 wrote to memory of 556 4036 chrosha.exe rundll32.exe PID 4036 wrote to memory of 556 4036 chrosha.exe rundll32.exe PID 4036 wrote to memory of 556 4036 chrosha.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.exe"C:\Users\Admin\AppData\Local\Temp\109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033.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:4632
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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:4036 -
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:1916 -
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:5344 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:2296
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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\018789126929_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1624 -
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:556
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
MD52a8b619eb5a30100c4956154a1c8bf76
SHA15050ec6ab243410968b7ed0db9f00dbf26eac641
SHA256109ddf7e302ab416976771292bcbdffa99443510ebbf74c9d410ea23d2525033
SHA512bb7b3a646b89f234230dd0a997905fa441661bcbb2570eb9a6fbb500e5e2f5c6f5bb75555bc8530bd48d7e524878bfa68bb4d9f8cf6da33eaf14591de174cc11
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_12jcmhhw.nkc.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/1624-64-0x00007FFD4B820000-0x00007FFD4C2E2000-memory.dmpFilesize
10.8MB
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memory/1624-58-0x0000015BF5E60000-0x0000015BF5E6A000-memory.dmpFilesize
40KB
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memory/1624-57-0x0000015BF60E0000-0x0000015BF60F2000-memory.dmpFilesize
72KB
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memory/1624-56-0x0000015BF5B00000-0x0000015BF5B10000-memory.dmpFilesize
64KB
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memory/1624-54-0x0000015BF5B00000-0x0000015BF5B10000-memory.dmpFilesize
64KB
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memory/1624-55-0x0000015BF5B00000-0x0000015BF5B10000-memory.dmpFilesize
64KB
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memory/1624-53-0x00007FFD4B820000-0x00007FFD4C2E2000-memory.dmpFilesize
10.8MB
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memory/1624-52-0x0000015BF5C00000-0x0000015BF5C22000-memory.dmpFilesize
136KB
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memory/4036-29-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-65-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-19-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-20-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-22-0x0000000005040000-0x0000000005041000-memory.dmpFilesize
4KB
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memory/4036-23-0x0000000005020000-0x0000000005021000-memory.dmpFilesize
4KB
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memory/4036-21-0x0000000005030000-0x0000000005031000-memory.dmpFilesize
4KB
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memory/4036-25-0x0000000005000000-0x0000000005001000-memory.dmpFilesize
4KB
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memory/4036-24-0x0000000005060000-0x0000000005061000-memory.dmpFilesize
4KB
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memory/4036-26-0x0000000005010000-0x0000000005011000-memory.dmpFilesize
4KB
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memory/4036-27-0x0000000005090000-0x0000000005091000-memory.dmpFilesize
4KB
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memory/4036-28-0x0000000005080000-0x0000000005081000-memory.dmpFilesize
4KB
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memory/4036-85-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-30-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-31-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-84-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-83-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-82-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-81-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-80-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-79-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-78-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4036-77-0x00000000000C0000-0x0000000000577000-memory.dmpFilesize
4.7MB
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memory/4632-5-0x0000000005240000-0x0000000005241000-memory.dmpFilesize
4KB
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memory/4632-8-0x0000000005230000-0x0000000005231000-memory.dmpFilesize
4KB
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memory/4632-16-0x00000000007C0000-0x0000000000C77000-memory.dmpFilesize
4.7MB
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memory/4632-1-0x0000000077936000-0x0000000077938000-memory.dmpFilesize
8KB
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memory/4632-9-0x0000000005280000-0x0000000005281000-memory.dmpFilesize
4KB
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memory/4632-6-0x0000000005290000-0x0000000005291000-memory.dmpFilesize
4KB
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memory/4632-7-0x0000000005220000-0x0000000005221000-memory.dmpFilesize
4KB
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memory/4632-4-0x0000000005260000-0x0000000005261000-memory.dmpFilesize
4KB
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memory/4632-3-0x0000000005250000-0x0000000005251000-memory.dmpFilesize
4KB
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memory/4632-2-0x00000000007C0000-0x0000000000C77000-memory.dmpFilesize
4.7MB
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memory/4632-10-0x00000000052B0000-0x00000000052B1000-memory.dmpFilesize
4KB
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memory/4632-11-0x00000000052A0000-0x00000000052A1000-memory.dmpFilesize
4KB
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memory/4632-0-0x00000000007C0000-0x0000000000C77000-memory.dmpFilesize
4.7MB