Analysis
- max time kernel
149s - max time network
159s - platform
windows11-21h2_x64 - resource
win11-20240319-en - resource tags
arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system - submitted
27/03/2024, 19:54
Static task
static1
Behavioral task
behavioral1
Sample
21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe
Resource
win10v2004-20240226-en
General
- Target 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe
- Size 1.9MB
- Sample240327-ymjaqaaf99
- SHA256 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3
- MD5 a3783c56ec85a68ad5ac12797df4eac8
- SHA1 8b44c5479c06c0835fd29ce1c5d3638ec67ffe7e
- SHA512 89017cc01b725ca4e579043be0d9e79733a6a07e36aabb83e015685335060724e3183e8dfb56325f577d1083e84064124d02f46f2093fbcb9772aef789d1d4c0
- SSDEEP 49152:Uwro4ryC5nX7ekg0lN92bn5NgUQH+Kfj4u:UrC5rnL92bn5NgN
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
amadey
-
4.18
-
http://193.233.132.56
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install_dir
09fd851a4f
-
install_file
explorha.exe
-
strings_key
443351145ece4966ded809641c77cfa8
-
url_paths
/Pneh2sXQk0/index.php
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorha.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorha.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorha.exe - Blocklisted process makes network request 2 IoCs
flow pid Process 14 752 rundll32.exe 15 2032 rundll32.exe - Downloads MZ/PE file
- Checks BIOS information in registry 2 TTPs 8 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorha.exe - Executes dropped EXE 4 IoCs
pid Process 5072 explorha.exe 5116 explorha.exe 5108 b3d947c218.exe 3672 explorha.exe - Identifies Wine through registry keys 2 TTPs 4 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-1-5-21-1233663403-1277323514-675434005-1000\Software\Wine 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe Key opened \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Wine explorha.exe Key opened \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Wine explorha.exe Key opened \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Wine explorha.exe - Loads dropped DLL 3 IoCs
pid Process 1060 rundll32.exe 752 rundll32.exe 2032 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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Microsoft\Windows\CurrentVersion\Run\b3d947c218.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000022001\\b3d947c218.exe" explorha.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 1584 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe 5072 explorha.exe 5116 explorha.exe 3672 explorha.exe - Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\explorha.job 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 1584 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe 1584 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe 5072 explorha.exe 5072 explorha.exe 5116 explorha.exe 5116 explorha.exe 752 rundll32.exe 752 rundll32.exe 752 rundll32.exe 752 rundll32.exe 752 rundll32.exe 752 rundll32.exe 752 rundll32.exe 752 rundll32.exe 752 rundll32.exe 752 rundll32.exe 2496 powershell.exe 2496 powershell.exe 3672 explorha.exe 3672 explorha.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2496 powershell.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1584 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1584 wrote to memory of 5072 1584 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe 82 PID 1584 wrote to memory of 5072 1584 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe 82 PID 1584 wrote to memory of 5072 1584 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe 82 PID 5072 wrote to memory of 5108 5072 explorha.exe 84 PID 5072 wrote to memory of 5108 5072 explorha.exe 84 PID 5072 wrote to memory of 5108 5072 explorha.exe 84 PID 5072 wrote to memory of 1060 5072 explorha.exe 85 PID 5072 wrote to memory of 1060 5072 explorha.exe 85 PID 5072 wrote to memory of 1060 5072 explorha.exe 85 PID 1060 wrote to memory of 752 1060 rundll32.exe 86 PID 1060 wrote to memory of 752 1060 rundll32.exe 86 PID 752 wrote to memory of 4564 752 rundll32.exe 87 PID 752 wrote to memory of 4564 752 rundll32.exe 87 PID 752 wrote to memory of 2496 752 rundll32.exe 89 PID 752 wrote to memory of 2496 752 rundll32.exe 89 PID 5072 wrote to memory of 2032 5072 explorha.exe 91 PID 5072 wrote to memory of 2032 5072 explorha.exe 91 PID 5072 wrote to memory of 2032 5072 explorha.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.exe"C:\Users\Admin\AppData\Local\Temp\21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3.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
- Suspicious use of WriteProcessMemory
PID:1584 -
C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe"C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5072 -
C:\Users\Admin\AppData\Local\Temp\1000022001\b3d947c218.exe"C:\Users\Admin\AppData\Local\Temp\1000022001\b3d947c218.exe"3⤵
- Executes dropped EXE
PID:5108
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1060 -
C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:752 -
C:\Windows\system32\netsh.exenetsh wlan show profiles5⤵PID:4564
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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\233663403127_Desktop.zip' -CompressionLevel Optimal5⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2496
-
-
-
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\clip64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:2032
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-
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C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exeC:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.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
PID:5116
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C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exeC:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.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
PID:3672
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Unsecured Credentials
3Credentials In Files
2Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
- Size 1.3MB
- SHA256 80892d9e5ac65c8cf4ee54387bc11b811656760891e21f74065cac21d7846b34
- MD5 74e5d11d3dcd2dd3fd22153014f8feaf
- SHA1 c2977b3ce52c23c82d7ae792db5a0572f3463aa3
- SHA512 5a8822470db207ab291947b5a9ffb37be100e89eb44827c21a460b69f3437e39786c43c030cee49d416db84fdc8d86a5444fcf123ba0f301cd31f3432c37f222
- SSDEEP 24576:UYZryaEakYXrPf8M9WC5HJ09uDhX7wRNkgAHbprNys2bn5Ngvs9Umiz:Uwro4ryC5nX7ekg0lN92bn5NgUQz
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
- Size 1.9MB
- SHA256 21c97b7886d56372292bf660056ce0ab83a6229afb23eb166caeb09f1927d5a3
- MD5 a3783c56ec85a68ad5ac12797df4eac8
- SHA1 8b44c5479c06c0835fd29ce1c5d3638ec67ffe7e
- SHA512 89017cc01b725ca4e579043be0d9e79733a6a07e36aabb83e015685335060724e3183e8dfb56325f577d1083e84064124d02f46f2093fbcb9772aef789d1d4c0
- SSDEEP 49152:Uwro4ryC5nX7ekg0lN92bn5NgUQH+Kfj4u:UrC5rnL92bn5NgN
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\1000022001\b3d947c218.exe
- Size 823KB
- SHA256 a418e06af747884788a7797b82f523306c450f4082f078ac52dfb245e27dfe74
- MD5 d1c67770f3ff21687709ef0f9ec6c5aa
- SHA1 f12c887eb6ccb6955e15d9d22484e1d7db632d87
- SHA512 e9a9c350cfc6b30f0606f4c3a85bc599397d9dde58254e690a00484603771ab32821a76157de339c00827fa4fdcec8d4277f7b28e3aa19e85f5ebcf675fe7370
- SSDEEP 12288:kUtJWIovSstZPyp1J1vbWnc3XnijGHztS+ITwdZsdBzsQlbe8HDpuUBKbewW8I+G:kpKKEz0uRyz9siZtuUBKbBw+lo
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uc2ndraz.mfv.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\clip64.dll
- Size 109KB
- SHA256 12fef2d5995d671ec0e91bdbdc91e2b0d3c90ed3a8b2b13ddaa8ad64727dcd46
- MD5 726cd06231883a159ec1ce28dd538699
- SHA1 404897e6a133d255ad5a9c26ac6414d7134285a2
- SHA512 9ea82e7cb6c6a58446bd5033855947c3e2d475d2910f2b941235e0b96aa08eec822d2dd17cc86b2d3fce930f78b799291992408e309a6c63e3011266810ea83e
- SSDEEP 3072:Q3uSD+ZwruS0bGcuZRt2sSZV/Q3IegRQod4l:AuTiabHuZRAFtlD4l
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll
- Size 1.2MB
- SHA256 3c97bb410e49b11af8116feb7240b7101e1967cae7538418c45c3d2e072e8103
- MD5 15a42d3e4579da615a384c717ab2109b
- SHA1 22aeedeb2307b1370cdab70d6a6b6d2c13ad2301
- SHA512 1eb7f126dccc88a2479e3818c36120f5af3caa0d632b9ea803485ee6531d6e2a1fd0805b1c4364983d280df23ea5ca3ad4a5fca558ac436efae36af9b795c444
- SSDEEP 24576:IvkQL6YY4wMPSYZofkf0Gh6Pi41+a9uyP5dggky+yC7:IsMPSYcS5wPi095Pbg9y
- MD5 SHA1 SHA512 SSDEEP