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Analysis
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max time kernel
150s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
06/03/2024, 12:36
General
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Target
b76a616ed9cf00389762b18798660574.exe
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Size
945KB
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MD5
b76a616ed9cf00389762b18798660574
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SHA1
22f98626bfaf427513f6dc9fc500637baec64544
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SHA256
2a514adb2304c99dc83541c167b3a3af3dc0f0e9615ed6c0726634f6bcd8280a
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SHA512
6f4b43d62838f01e528afc7a054e406a464fc157da00b47f3466af9d76fa21c4fb861dbece14c544c7c888ced3505e16f0f0408e3954fdd1b344bc76e2cc83ab
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SSDEEP
24576:l+r0o5VtMwpcxlst4C62X+EFKb51XbTk:lg0t4t4j2uiKbPnk
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 2 IoCs
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UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Adds Run key to start application 2 TTPs 1 IoCs
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Enumerates connected drives 3 TTPs 21 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: RenamesItself 1 IoCs
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Suspicious use of FindShellTrayWindow 12 IoCs
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Suspicious use of SendNotifyMessage 12 IoCs
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Suspicious use of SetWindowsHookEx 2 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b76a616ed9cf00389762b18798660574.exe"C:\Users\Admin\AppData\Local\Temp\b76a616ed9cf00389762b18798660574.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\ProgramData\defender.exeC:\ProgramData\defender.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
863KB
MD59162e03de49e577ace655d03521082c1
SHA1b22f0f0262bc5781743a6d815943d596ce9abc0d
SHA256854b68869d1967f6bc0a7876f34ef109eb7fa239fb57f682ead0291ced5a0b38
SHA51203c6c77ecd5c251b853b9c6ed35a12a12df84a72ab321cd6c707b11d42abb222b519b3a8c93f23d610710a51952d418638907ea982cd30c0f64f7af4cc25e9a5
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
256KB
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Filesize
256KB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
4KB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
256KB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
4KB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
6.1MB
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Filesize
2.9MB
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Filesize
2.9MB
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Filesize
6.1MB
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Filesize
64KB
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Filesize
256KB
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Filesize
2.9MB
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Filesize
4KB