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Analysis

  • max time kernel
    89s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/07/2023, 21:24

General

  • Target

    file.exe

  • Size

    2.3MB

  • MD5

    cdce958317e838eb09ec7e678ba1995c

  • SHA1

    30d5a9b4f1083e2f188b7ce2d2c24fd63c0b413b

  • SHA256

    9dca904c03551d33f96618bae69cb43811bd5072826ead4e1b7072229451a376

  • SHA512

    79e021418a99c5ed38a0995887b9bd7711bbe9b299113c76a87f02eb111c9211c350b7d5b2580ca40a81bd110d53a899a11c4b9e61e3338b90ac4ab84dae81f2

  • SSDEEP

    49152:OlJiXsQqb2AkydMeCL9+feqU9QWsNNHrT:OH7dj3O8mqkQNNHrT

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5060
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4916
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:220
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1C0.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4312
      • C:\ProgramData\CodeShorts\ELRX.exe
        "C:\ProgramData\CodeShorts\ELRX.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3412
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3668
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4044
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "ELRX" /tr "C:\ProgramData\CodeShorts\ELRX.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:716
          • C:\Windows\system32\schtasks.exe
            schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "ELRX" /tr "C:\ProgramData\CodeShorts\ELRX.exe"
            5⤵
            • Creates scheduled task(s)
            PID:3988
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3412 -s 2104
          4⤵
          • Program crash
          PID:2888
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 424 -p 3412 -ip 3412
    1⤵
      PID:3856

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\ProgramData\CodeShorts\ELRX.exe

      Filesize

      707.0MB

      MD5

      d33d001cf9f16632b65b2efac27bfde7

      SHA1

      dbfab5031aaced62b5d7970e10fc81174f299149

      SHA256

      2b12e99966161ea238c78a01fb414d6949539bc5bbcc62c1f586316dc8373af9

      SHA512

      36a1a9008747da970f2a9696e0e4b4a3778d99c3328a856e455555684a57fca88cf6698b9c232f6e73419f9e1e6827ae0351ffc8619a1cd2152db8d62c83bc57

    • C:\ProgramData\CodeShorts\ELRX.exe

      Filesize

      707.0MB

      MD5

      d33d001cf9f16632b65b2efac27bfde7

      SHA1

      dbfab5031aaced62b5d7970e10fc81174f299149

      SHA256

      2b12e99966161ea238c78a01fb414d6949539bc5bbcc62c1f586316dc8373af9

      SHA512

      36a1a9008747da970f2a9696e0e4b4a3778d99c3328a856e455555684a57fca88cf6698b9c232f6e73419f9e1e6827ae0351ffc8619a1cd2152db8d62c83bc57

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      944B

      MD5

      6d42b6da621e8df5674e26b799c8e2aa

      SHA1

      ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

      SHA256

      5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

      SHA512

      53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      944B

      MD5

      f0a41fc9c1123bb127e55ecc66c8f052

      SHA1

      57152411758fa3df2623cc8a4df6d9fea73652f8

      SHA256

      a4fe2be2c449e841f6a12d32114672b097fc1058b6f2971a03521220a0228745

      SHA512

      e3e967adac361ddcf8240cf641f3e77eacfefc61dec725b8ae12e6a94f7d2ebd937fb9eb3cd068a0b3d4306e163dc87773b322bc2dd8b7df93b8103d0e99a900

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uabfw0u0.ovc.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp1C0.tmp.bat

      Filesize

      142B

      MD5

      1ef93708bec6e53252945d9fc4a83f74

      SHA1

      4fcfc90b2039d2eb36f71ff648e111f762c18c0b

      SHA256

      7df847a4da99b6fa4daf66d7309bded215611653ee98041095df6f2455e1520f

      SHA512

      bf87dc0f12de615a078d10a8a0c12b65ba64a6a70a4b5e73430ee17bd99f18abadd9f3bbf30e443973cf21f39efd40007529b3b46acf18542e07744395e7704a

    • memory/220-146-0x0000025B6CAF0000-0x0000025B6CB00000-memory.dmp

      Filesize

      64KB

    • memory/220-148-0x0000025B6CA40000-0x0000025B6CA62000-memory.dmp

      Filesize

      136KB

    • memory/3412-169-0x000000001B580000-0x000000001B590000-memory.dmp

      Filesize

      64KB

    • memory/3412-170-0x00000000028B0000-0x00000000028B1000-memory.dmp

      Filesize

      4KB

    • memory/3412-171-0x000000001B580000-0x000000001B590000-memory.dmp

      Filesize

      64KB

    • memory/3668-194-0x0000021A421A0000-0x0000021A421B0000-memory.dmp

      Filesize

      64KB

    • memory/3668-198-0x0000021A421A0000-0x0000021A421B0000-memory.dmp

      Filesize

      64KB

    • memory/3668-195-0x0000021A421A0000-0x0000021A421B0000-memory.dmp

      Filesize

      64KB

    • memory/4044-193-0x000001F972BA0000-0x000001F972BB0000-memory.dmp

      Filesize

      64KB

    • memory/4044-196-0x000001F972BA0000-0x000001F972BB0000-memory.dmp

      Filesize

      64KB

    • memory/4044-197-0x000001F972BA0000-0x000001F972BB0000-memory.dmp

      Filesize

      64KB

    • memory/4916-147-0x0000015D4D4D0000-0x0000015D4D4E0000-memory.dmp

      Filesize

      64KB

    • memory/5060-145-0x0000000001280000-0x0000000001281000-memory.dmp

      Filesize

      4KB

    • memory/5060-159-0x000000001B720000-0x000000001B730000-memory.dmp

      Filesize

      64KB

    • memory/5060-133-0x00000000008E0000-0x0000000000B34000-memory.dmp

      Filesize

      2.3MB

    • memory/5060-144-0x000000001B720000-0x000000001B730000-memory.dmp

      Filesize

      64KB