Analysis
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max time kernel
141s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21-11-2024 02:02
Static task
static1
Behavioral task
behavioral1
Sample
017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe
Resource
win7-20240903-en
General
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Target
017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe
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Size
1.8MB
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MD5
fcef19f8625006d98f0f55d5723b5298
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SHA1
4944a4b08c759e674cc37fdaedeea148ef758744
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SHA256
017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08
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SHA512
23af21f03a7a863baf5618be447297f06f35283f1d5e13fc9c8ee109bb6526cdedeaa16df559d9e42c909fa197aa67db7c64929be534f7246db94b27c7992d30
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SSDEEP
49152:5WFDSDNlEstMehfBwe/WHGZDPgVW0DW40fNQ2:PNqs+ejL/ZDY50z
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
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ defnur.exe -
Blocklisted process makes network request 1 IoCs
flow pid Process 6 1032 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.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion defnur.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion defnur.exe -
Executes dropped EXE 3 IoCs
pid Process 2872 defnur.exe 2004 6266fee9e7.exe 1912 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.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine defnur.exe -
Loads dropped DLL 7 IoCs
pid Process 3044 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe 1032 rundll32.exe 1032 rundll32.exe 1032 rundll32.exe 1032 rundll32.exe 2872 defnur.exe 1356 cmd.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\kreon = "C:\\Users\\Admin\\AppData\\Local\\kreon.exe" 6266fee9e7.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
flow ioc 11 raw.githubusercontent.com 12 raw.githubusercontent.com 17 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.
flow ioc 9 ip-api.com -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 3044 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe 2872 defnur.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\defnur.job 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language defnur.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2028 cmd.exe 1356 cmd.exe 2644 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2644 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3044 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe 2872 defnur.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3044 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 3044 wrote to memory of 2872 3044 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe 30 PID 3044 wrote to memory of 2872 3044 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe 30 PID 3044 wrote to memory of 2872 3044 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe 30 PID 3044 wrote to memory of 2872 3044 017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe 30 PID 2872 wrote to memory of 1032 2872 defnur.exe 33 PID 2872 wrote to memory of 1032 2872 defnur.exe 33 PID 2872 wrote to memory of 1032 2872 defnur.exe 33 PID 2872 wrote to memory of 1032 2872 defnur.exe 33 PID 2872 wrote to memory of 1032 2872 defnur.exe 33 PID 2872 wrote to memory of 1032 2872 defnur.exe 33 PID 2872 wrote to memory of 1032 2872 defnur.exe 33 PID 2872 wrote to memory of 2004 2872 defnur.exe 35 PID 2872 wrote to memory of 2004 2872 defnur.exe 35 PID 2872 wrote to memory of 2004 2872 defnur.exe 35 PID 2872 wrote to memory of 2004 2872 defnur.exe 35 PID 2004 wrote to memory of 2028 2004 6266fee9e7.exe 36 PID 2004 wrote to memory of 2028 2004 6266fee9e7.exe 36 PID 2004 wrote to memory of 2028 2004 6266fee9e7.exe 36 PID 2028 wrote to memory of 1356 2028 cmd.exe 38 PID 2028 wrote to memory of 1356 2028 cmd.exe 38 PID 2028 wrote to memory of 1356 2028 cmd.exe 38 PID 1356 wrote to memory of 2644 1356 cmd.exe 40 PID 1356 wrote to memory of 2644 1356 cmd.exe 40 PID 1356 wrote to memory of 2644 1356 cmd.exe 40 PID 1356 wrote to memory of 1912 1356 cmd.exe 41 PID 1356 wrote to memory of 1912 1356 cmd.exe 41 PID 1356 wrote to memory of 1912 1356 cmd.exe 41
Processes
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C:\Users\Admin\AppData\Local\Temp\017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.exe"C:\Users\Admin\AppData\Local\Temp\017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08.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:3044 -
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:2872 -
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:1032
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C:\Users\Admin\AppData\Local\Temp\10004590101\6266fee9e7.exe"C:\Users\Admin\AppData\Local\Temp\10004590101\6266fee9e7.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2004 -
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:2028 -
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:1356 -
C:\Windows\system32\PING.EXEping localhost -n 16⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2644
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C:\Users\Admin\AppData\Local\kreon.exeC:\Users\Admin\AppData\Local\kreon.exe6⤵
- Executes dropped EXE
PID:1912
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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
MD51f3d9fb12aceab35e9d2d80783b24726
SHA1d724a69ba046a0716f20b9b040a136490fee5b23
SHA256d6afc212821ff3aa43cc91fed40c2aa51d288fd59d92d8ab388044e8b92c35dd
SHA51296e604332204c85447f581ae9a50a71ca4aa0485fc29920d78ede7fdcdb10d7d96318f95b47fb15d100052560aad5cda07b261a261622e62988e72d00b440494
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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
MD5fcef19f8625006d98f0f55d5723b5298
SHA14944a4b08c759e674cc37fdaedeea148ef758744
SHA256017fe2be76b891716b444e4b519e4585177bd04d3b173bde24c28d458631eb08
SHA51223af21f03a7a863baf5618be447297f06f35283f1d5e13fc9c8ee109bb6526cdedeaa16df559d9e42c909fa197aa67db7c64929be534f7246db94b27c7992d30
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Filesize
124KB
MD50d3418372c854ee228b78e16ea7059be
SHA1c0a29d4e74d39308a50f4fd21d0cca1f98cb02c1
SHA256885bf0b3b12b77ef3f953fbb48def1b45079faa2a4d574ee16afdbafa1de3ac7
SHA512e30dced307e04ae664367a998cd1ba36349e99e363f70897b5d90c898de2c69c393182c3afba63a74956b5e6f49f0635468e88ed31dd1e3c86c21e987ddd2c19