Analysis
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max time kernel
147s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-04-2024 15:00
Static task
static1
Behavioral task
behavioral1
Sample
bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe
Resource
win10v2004-20240412-en
General
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Target
bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe
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Size
1.8MB
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MD5
e119707d9974ec7abaf1377311b6a879
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SHA1
0a6934f4d046e3d51834963a72939fd830dfa6f7
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SHA256
bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e
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SHA512
9491d1f34958083da1c7a653b1e695dfdb0317b96e3518b731389dd74c76ac184c8a08aca45cf3481566459804b0bfec5a00e1056fe53bdabab2f636c11baf3e
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SSDEEP
49152:0rdSFprPKzieoh6+OTAhVEElM7aFtVSh:0MCzieoHOcVEEe7aFvc
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:
chrosha.exebd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 48 3836 rundll32.exe 49 3900 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:
bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exechrosha.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.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 2 IoCs
Processes:
chrosha.exeswiiiii.exepid process 5796 chrosha.exe 5180 swiiiii.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:
bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Wine bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.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 316 rundll32.exe 3836 rundll32.exe 3900 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:
bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exechrosha.exepid process 5728 bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe 5796 chrosha.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
swiiiii.exedescription pid process target process PID 5180 set thread context of 5760 5180 swiiiii.exe RegAsm.exe -
Drops file in Windows directory 1 IoCs
Processes:
bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exedescription ioc process File created C:\Windows\Tasks\chrosha.job bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 6088 5180 WerFault.exe swiiiii.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exechrosha.exerundll32.exepowershell.exepid process 5728 bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe 5728 bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe 5796 chrosha.exe 5796 chrosha.exe 3836 rundll32.exe 3836 rundll32.exe 3836 rundll32.exe 3836 rundll32.exe 3836 rundll32.exe 3836 rundll32.exe 3836 rundll32.exe 3836 rundll32.exe 3836 rundll32.exe 3836 rundll32.exe 3292 powershell.exe 3292 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3292 powershell.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
chrosha.exeswiiiii.exerundll32.exerundll32.exedescription pid process target process PID 5796 wrote to memory of 5180 5796 chrosha.exe swiiiii.exe PID 5796 wrote to memory of 5180 5796 chrosha.exe swiiiii.exe PID 5796 wrote to memory of 5180 5796 chrosha.exe swiiiii.exe PID 5180 wrote to memory of 5512 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5512 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5512 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5760 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5760 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5760 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5760 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5760 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5760 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5760 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5760 5180 swiiiii.exe RegAsm.exe PID 5180 wrote to memory of 5760 5180 swiiiii.exe RegAsm.exe PID 5796 wrote to memory of 316 5796 chrosha.exe rundll32.exe PID 5796 wrote to memory of 316 5796 chrosha.exe rundll32.exe PID 5796 wrote to memory of 316 5796 chrosha.exe rundll32.exe PID 316 wrote to memory of 3836 316 rundll32.exe rundll32.exe PID 316 wrote to memory of 3836 316 rundll32.exe rundll32.exe PID 3836 wrote to memory of 964 3836 rundll32.exe netsh.exe PID 3836 wrote to memory of 964 3836 rundll32.exe netsh.exe PID 3836 wrote to memory of 3292 3836 rundll32.exe powershell.exe PID 3836 wrote to memory of 3292 3836 rundll32.exe powershell.exe PID 5796 wrote to memory of 3900 5796 chrosha.exe rundll32.exe PID 5796 wrote to memory of 3900 5796 chrosha.exe rundll32.exe PID 5796 wrote to memory of 3900 5796 chrosha.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe"C:\Users\Admin\AppData\Local\Temp\bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.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:5728
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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:5796 -
C:\Users\Admin\AppData\Local\Temp\1000147001\swiiiii.exe"C:\Users\Admin\AppData\Local\Temp\1000147001\swiiiii.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5180 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"3⤵PID:5512
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"3⤵PID:5760
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5180 -s 8963⤵
- Program crash
PID:6088
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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:316 -
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:3836 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:964
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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:3292
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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:3900
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 5180 -ip 51801⤵PID:996
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
321KB
MD51c7d0f34bb1d85b5d2c01367cc8f62ef
SHA133aedadb5361f1646cffd68791d72ba5f1424114
SHA256e9e09c5e5d03d21fca820bd9b0a0ea7b86ab9e85cdc9996f8f1dc822b0cc801c
SHA51253bf85d2b004f69bbbf7b6dc78e5f021aba71b6f814101c55d3bf76e6d058a973bc58270b6b621b2100c6e02d382f568d1e96024464e8ea81e6db8ccd948679d
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Filesize
1.8MB
MD5e119707d9974ec7abaf1377311b6a879
SHA10a6934f4d046e3d51834963a72939fd830dfa6f7
SHA256bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e
SHA5129491d1f34958083da1c7a653b1e695dfdb0317b96e3518b731389dd74c76ac184c8a08aca45cf3481566459804b0bfec5a00e1056fe53bdabab2f636c11baf3e
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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