Overview

overview

10

Static

static

8

3521d0f0ce...65.exe

windows7-x64

10

3521d0f0ce...65.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    04-10-2022 00:38

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General

  • Target

    3521d0f0cef1a3735a4929d4f0fda2cd9aad315929eb48a7126d0cc88e845365.exe

  • Size

    469KB

  • MD5

    3e21b834fe39938e1bf4d085c75bfe91

  • SHA1

    2b8415a02ae655df4466f3f8b8e9c57deee337ee

  • SHA256

    3521d0f0cef1a3735a4929d4f0fda2cd9aad315929eb48a7126d0cc88e845365

  • SHA512

    bbbe64d467fb9f54b7433d53c6367eb85c7fb6436724c23fe2fd8b328a4d3a0a85ac0f3a378e471977a5a08b3b8ae793edb4f7299e42209f53b5712821215f99

  • SSDEEP

    6144:QxlZaFDLrItkluXRuBvusFjJemp8dqoOiEzfZi+Dzo0naG1:+lQ8fXEBvuwjInnLEzRi+DPaG1

Score
10/10
evasionpersistenceupx

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Modifies Installed Components in the registry 2 TTPs 10 IoCs
    persistence
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 50 IoCs
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3521d0f0cef1a3735a4929d4f0fda2cd9aad315929eb48a7126d0cc88e845365.exe
    "C:\Users\Admin\AppData\Local\Temp\3521d0f0cef1a3735a4929d4f0fda2cd9aad315929eb48a7126d0cc88e845365.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Disables RegEdit via registry modification
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT /delete /yes
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:844
      • C:\Windows\SysWOW64\at.exe
        AT /delete /yes
        3⤵
          PID:992
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\WORD.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:840
        • C:\Windows\SysWOW64\at.exe
          AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\WORD.exe
          3⤵
            PID:2016
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1432
      • C:\Windows\system32\AUDIODG.EXE
        C:\Windows\system32\AUDIODG.EXE 0x58c
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1208
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1708
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1076
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1428
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SendNotifyMessage
        PID:1556
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious use of SendNotifyMessage
        PID:1480
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        PID:1296
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        PID:1752
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        PID:2028
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        PID:1912

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/840-59-0x0000000000000000-mapping.dmp

        Download

      • memory/844-55-0x0000000000000000-mapping.dmp

        Download

      • memory/992-56-0x0000000000000000-mapping.dmp

        Download

      • memory/1076-65-0x000007FEFC341000-0x000007FEFC343000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1432-63-0x000007FEFBE31000-0x000007FEFBE33000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1708-64-0x000007FEFB591000-0x000007FEFB593000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1840-54-0x0000000076401000-0x0000000076403000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1840-58-0x0000000000400000-0x00000000004D3000-memory.dmp

        Filesize

        844KB

        Download

      • memory/1840-62-0x0000000000400000-0x00000000004D3000-memory.dmp

        Filesize

        844KB

        Download

      • memory/2016-60-0x0000000000000000-mapping.dmp

        Download