Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/11/2023, 20:17

General

  • Target

    NEAS.5532cedfcc93e170f1fa8f89dae99d50_JC.exe

  • Size

    2.0MB

  • MD5

    5532cedfcc93e170f1fa8f89dae99d50

  • SHA1

    27ba738d613d0b7c56c3121c49530ebd6e7d3991

  • SHA256

    f1436070cb23e096c98b4c18088d8020208eb63f439bcac4c6721dcabfa3a60b

  • SHA512

    66213be0a706d528fcf5e572492304de4d6532d78d544b8dc05dd2eafd7452f8022cf57c5a89a82215195c2208fa0a1071462a0c90a89e447ee3b5971ec597bf

  • SSDEEP

    49152:oRBKILo69MFGQ7ai7D3xTgOxYwpKWbazR0vKLXZ:a0ILo69MFD2i7D3xkOxYwpKiatuKLXZ

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.5532cedfcc93e170f1fa8f89dae99d50_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.5532cedfcc93e170f1fa8f89dae99d50_JC.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Users\Admin\AppData\Local\Temp\NEAS.5532cedfcc93e170f1fa8f89dae99d50_JC.exe
      C:\Users\Admin\AppData\Local\Temp\NEAS.5532cedfcc93e170f1fa8f89dae99d50_JC.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3216
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\NEAS.5532cedfcc93e170f1fa8f89dae99d50_JC.exe" /TN AcFUHnYEd197 /F
        3⤵
        • Creates scheduled task(s)
        PID:316
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN AcFUHnYEd197 > C:\Users\Admin\AppData\Local\Temp\xRyAoKUQQ.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2348
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN AcFUHnYEd197
          4⤵
            PID:4768
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3216 -s 636
          3⤵
          • Program crash
          PID:4288
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3216 -ip 3216
      1⤵
        PID:3892

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\NEAS.5532cedfcc93e170f1fa8f89dae99d50_JC.exe

        Filesize

        2.0MB

        MD5

        e14c97001d7238f105753311303f1fe3

        SHA1

        bcf22058511ed7b5aa7f4fef8e245038f63cd321

        SHA256

        c719466a06bf366006fc7fa73670bc972a7b8e8b2e7f7579cfb3b341fd83d70a

        SHA512

        348b85a61aeafbbcf380dba32503cd7d58826bd9f7468af47004303ed37a5121db972f4ed109e3e2aca9d99742ba6a8f1b8a15ebdb62d1f15fe8179a93dee3b8

      • C:\Users\Admin\AppData\Local\Temp\xRyAoKUQQ.xml

        Filesize

        1KB

        MD5

        754cfc3dd74ac83e9c13eaf582ff325f

        SHA1

        525d9cd579a1454066b84ea7c7884258e04d8dd6

        SHA256

        e419e26310eb627fd64f035c06f932a4846ee3f82f6db815c18d11ba94345779

        SHA512

        78f2ca8cfdadb1735b2a0b9ce9e49f5f442fdea1c4a0c038b76ebef36da0330d8ca0dae9f5bd5a1f243f654dbd134ecb626eadc88020e921dd0025c226f40bad

      • memory/2920-0-0x0000000000400000-0x000000000065C000-memory.dmp

        Filesize

        2.4MB

      • memory/2920-1-0x0000000000400000-0x000000000046B000-memory.dmp

        Filesize

        428KB

      • memory/2920-2-0x0000000001730000-0x00000000017AE000-memory.dmp

        Filesize

        504KB

      • memory/2920-13-0x0000000000400000-0x000000000046B000-memory.dmp

        Filesize

        428KB

      • memory/3216-14-0x0000000000400000-0x000000000065C000-memory.dmp

        Filesize

        2.4MB

      • memory/3216-16-0x0000000001720000-0x000000000179E000-memory.dmp

        Filesize

        504KB

      • memory/3216-22-0x0000000000470000-0x00000000004DB000-memory.dmp

        Filesize

        428KB

      • memory/3216-23-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB

      • memory/3216-40-0x0000000000400000-0x000000000065C000-memory.dmp

        Filesize

        2.4MB