Analysis
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max time kernel
142s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
20-11-2024 00:49
Static task
static1
Behavioral task
behavioral1
Sample
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe
Resource
win7-20241023-en
General
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Target
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe
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Size
1.8MB
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MD5
b94fa28743249de38b5bd60748d6cdc2
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SHA1
d6f97d85fa9f8cb50ec6e4409e3e5d4a670cd6f9
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SHA256
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65
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SHA512
d02d7560c74259da98f05716461a8af5f84faffa2046b1c23aa59eba76a87ab30fe0f0510ae3965fa02cf99a9b8948ebec11c07a3e838456a673a04642c8d09a
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SSDEEP
49152:e+mvxOEOhyu1HYFC4brAfT6zcYFBAzDb7vYkUG:ApOEO7GAezcYFBWDb7L
Malware Config
Extracted
amadey
5.04
4bee07
http://185.215.113.209
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install_dir
fc9e0aaab7
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install_file
defnur.exe
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strings_key
191655f008adc880f91bfc85bc56db54
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url_paths
/Fru7Nk9/index.php
Signatures
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Amadey family
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
Processes:
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exedefnur.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ defnur.exe -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid Process 6 2120 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:
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exedefnur.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion defnur.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion defnur.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe -
Executes dropped EXE 3 IoCs
Processes:
defnur.exe370457c9e8.exekreon.exepid Process 2668 defnur.exe 860 370457c9e8.exe 1868 kreon.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:
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exedefnur.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe Key opened \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine defnur.exe -
Loads dropped DLL 7 IoCs
Processes:
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exerundll32.exedefnur.execmd.exepid Process 2824 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe 2120 rundll32.exe 2120 rundll32.exe 2120 rundll32.exe 2120 rundll32.exe 2668 defnur.exe 1064 cmd.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
370457c9e8.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\kreon = "C:\\Users\\Admin\\AppData\\Local\\kreon.exe" 370457c9e8.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
Processes:
flow ioc 12 raw.githubusercontent.com 17 raw.githubusercontent.com 11 raw.githubusercontent.com -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 9 ip-api.com -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exedefnur.exepid Process 2824 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe 2668 defnur.exe -
Drops file in Windows directory 1 IoCs
Processes:
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exedescription ioc Process File created C:\Windows\Tasks\defnur.job 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
defnur.exerundll32.exe821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language defnur.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs
Adversaries may check for Internet connectivity on compromised systems.
Processes:
cmd.exePING.EXEcmd.exepid Process 1064 cmd.exe 1768 PING.EXE 468 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exedefnur.exepid Process 2824 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe 2668 defnur.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exepid Process 2824 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exedefnur.exe370457c9e8.execmd.execmd.exedescription pid Process procid_target PID 2824 wrote to memory of 2668 2824 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe 30 PID 2824 wrote to memory of 2668 2824 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe 30 PID 2824 wrote to memory of 2668 2824 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe 30 PID 2824 wrote to memory of 2668 2824 821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe 30 PID 2668 wrote to memory of 2120 2668 defnur.exe 32 PID 2668 wrote to memory of 2120 2668 defnur.exe 32 PID 2668 wrote to memory of 2120 2668 defnur.exe 32 PID 2668 wrote to memory of 2120 2668 defnur.exe 32 PID 2668 wrote to memory of 2120 2668 defnur.exe 32 PID 2668 wrote to memory of 2120 2668 defnur.exe 32 PID 2668 wrote to memory of 2120 2668 defnur.exe 32 PID 2668 wrote to memory of 860 2668 defnur.exe 34 PID 2668 wrote to memory of 860 2668 defnur.exe 34 PID 2668 wrote to memory of 860 2668 defnur.exe 34 PID 2668 wrote to memory of 860 2668 defnur.exe 34 PID 860 wrote to memory of 468 860 370457c9e8.exe 36 PID 860 wrote to memory of 468 860 370457c9e8.exe 36 PID 860 wrote to memory of 468 860 370457c9e8.exe 36 PID 468 wrote to memory of 1064 468 cmd.exe 38 PID 468 wrote to memory of 1064 468 cmd.exe 38 PID 468 wrote to memory of 1064 468 cmd.exe 38 PID 1064 wrote to memory of 1768 1064 cmd.exe 40 PID 1064 wrote to memory of 1768 1064 cmd.exe 40 PID 1064 wrote to memory of 1768 1064 cmd.exe 40 PID 1064 wrote to memory of 1868 1064 cmd.exe 41 PID 1064 wrote to memory of 1868 1064 cmd.exe 41 PID 1064 wrote to memory of 1868 1064 cmd.exe 41
Processes
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C:\Users\Admin\AppData\Local\Temp\821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe"C:\Users\Admin\AppData\Local\Temp\821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\Users\Admin\AppData\Local\Temp\fc9e0aaab7\defnur.exe"C:\Users\Admin\AppData\Local\Temp\fc9e0aaab7\defnur.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2668 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2120
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C:\Users\Admin\AppData\Local\Temp\10004090101\370457c9e8.exe"C:\Users\Admin\AppData\Local\Temp\10004090101\370457c9e8.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:860 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c start cmd /C "ping localhost -n 1 && start C:\Users\Admin\AppData\Local\kreon.exe"4⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:468 -
C:\Windows\system32\cmd.execmd /C "ping localhost -n 1 && start C:\Users\Admin\AppData\Local\kreon.exe"5⤵
- Loads dropped DLL
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1064 -
C:\Windows\system32\PING.EXEping localhost -n 16⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1768
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C:\Users\Admin\AppData\Local\kreon.exeC:\Users\Admin\AppData\Local\kreon.exe6⤵
- Executes dropped EXE
PID:1868
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5dc9109763d8781a10bd37c167ea94901
SHA12c46487b279290c54544ed2d929bbc56762f1706
SHA2563f08b55af2e0f574553e63dcc715657591216d14cd0650b8d5079855fdb4eff3
SHA512921d13517acc8fdc30772db714d90df0c581d6290841ccc5347083b3b90e57767287f7cb509d3ce1681c0fa30e13dde2a02ad201f49457e361730b24e6242321
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Filesize
3.5MB
MD5ca480193e4b8159dd1283118ebde8896
SHA1857fb4852f31428ead5e2d9fbd5bfb16d9714d1a
SHA256377717dd342a9169589d1e2c8509d12ceafe9c43b3407ab16771ec611a367a2a
SHA512a49927f1dffe8d14f592e767415c490f4bdc9fb5d7ce45f10f5e6c7aa5c20b79412abc8d4f799cfd88aeeac3ef73f55a9710503a9a612efb5d414ec95a3e7ed9
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
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Filesize
1.8MB
MD5b94fa28743249de38b5bd60748d6cdc2
SHA1d6f97d85fa9f8cb50ec6e4409e3e5d4a670cd6f9
SHA256821673b648a44cb9d565a0d207102f1012d9123abf5b48388c461e369188fd65
SHA512d02d7560c74259da98f05716461a8af5f84faffa2046b1c23aa59eba76a87ab30fe0f0510ae3965fa02cf99a9b8948ebec11c07a3e838456a673a04642c8d09a
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Filesize
124KB
MD50d3418372c854ee228b78e16ea7059be
SHA1c0a29d4e74d39308a50f4fd21d0cca1f98cb02c1
SHA256885bf0b3b12b77ef3f953fbb48def1b45079faa2a4d574ee16afdbafa1de3ac7
SHA512e30dced307e04ae664367a998cd1ba36349e99e363f70897b5d90c898de2c69c393182c3afba63a74956b5e6f49f0635468e88ed31dd1e3c86c21e987ddd2c19