Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-11-2023 12:53

General

  • Target

    add_acl.ps1

  • Size

    337B

  • MD5

    d90fed2f2872cb0aa450b0a91c5c67e9

  • SHA1

    8af3d7b66b26489fee514b8a6cb3d9b327ce685f

  • SHA256

    23139b2d6e97241d698f684ecf7f8a077aa1206d0d75d1ee6769aac61ebdf4b8

  • SHA512

    ec2819e9e7dfc6da002006661ef794b2a89a2785928336d025c18970929b7e956d56843fa736ab13f9554740b572a4aa2fbe68fabaf3ec472bb7dac3ca02fb65

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\add_acl.ps1
    1⤵
    • Blocklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\evbgcdfy\evbgcdfy.cmdline"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4016
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES87CD.tmp" "c:\Users\Admin\AppData\Local\Temp\evbgcdfy\CSCDFDC09EC2D14EAA9E534BB6E030D356.TMP"
        3⤵
          PID:3348

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\RES87CD.tmp

      Filesize

      1KB

      MD5

      518d5cdb2d8d520cbcca86f6012d0271

      SHA1

      2343e1288e8947dc36d9f27f37f1707aa230a33c

      SHA256

      958da712cf271c96a240fb283f1010a7a75ccddae4008050fcd94c068c6fc8c6

      SHA512

      46fbbd6193d0f91f9b5cae9162fd5b383f80c3fda26eea6c2c0eaa8abd11c74824ec884f8d4ea75f59786e076af85bec4943d44d0f0a831428f9e5e9e7b12db2

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_c4qqalkt.hzx.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\evbgcdfy\evbgcdfy.dll

      Filesize

      8KB

      MD5

      0dc9ebd592ea7e8702ec40d637730ec5

      SHA1

      8be6fee59fc863fa58c0f60ce2ddffa06d3b984c

      SHA256

      accf59659e335caccae26d7266fabf80b3fd0d8f5f8fe1611fefacb23ca7ed9b

      SHA512

      2e63595cf5e239b6f2225a1c8ac18f17bf50840dd5ace857c77cde8913ead7e7214d61993400ab743a21e587e392d72e8371588528bbf172bf09f9e716b9a9b3

    • \??\c:\Users\Admin\AppData\Local\Temp\evbgcdfy\CSCDFDC09EC2D14EAA9E534BB6E030D356.TMP

      Filesize

      652B

      MD5

      d837c4e43b042492c71b7fb224283c80

      SHA1

      79c2fcec0cbf6f0fdf37e30035d381f735383891

      SHA256

      d68bedfcdc8ab957f27e87c8585f80eadf00ecd21a8044cbca9b10781423ba4b

      SHA512

      bd6f2ea18de1bf069dd65c050dabbf52d561117cdbf642bf18e92fc24f842010e2f3b11fa7b29110c22d447de9c5e53bfe4da32db634f04f5a67d87aff2f54c1

    • \??\c:\Users\Admin\AppData\Local\Temp\evbgcdfy\evbgcdfy.0.cs

      Filesize

      11KB

      MD5

      9ade8655c48efd8bdbb0749d1e530133

      SHA1

      2a8b2353c3c21c8af64a115bce8caec0bd9cd010

      SHA256

      b780c209ecafd59f57fb9cc6dd3ccf53d6fa1b299a7d0edba91ee6e9acf9df87

      SHA512

      46a04af8a3e97c7319ea6eec49ff4939e366ca823dd75bf1715efa1f1341d96207ebc60867c836981f8998a4ed7e1b4cf8c032b8e7491cfa4995306ac3d9271f

    • \??\c:\Users\Admin\AppData\Local\Temp\evbgcdfy\evbgcdfy.cmdline

      Filesize

      369B

      MD5

      136b45bf43220e4be89138ca5e5d02c3

      SHA1

      5d62716ad12c35fca8d42e114ae15007446b1614

      SHA256

      c9376a2dd6c266fcca7eed2ffe82df45b71dcd8ad5293ef7756d2229ad5b908a

      SHA512

      ea3cda852620ae98785fdabde301d392aeba5781f57c5b737df71bc99e02bd6f563f21397a8cafe674d00d99fe5459d416e927c057e68cc75ab66c338d686793

    • memory/1060-9-0x0000010EE6AE0000-0x0000010EE6B02000-memory.dmp

      Filesize

      136KB

    • memory/1060-10-0x00007FFDC2150000-0x00007FFDC2C11000-memory.dmp

      Filesize

      10.8MB

    • memory/1060-11-0x0000010EE6B30000-0x0000010EE6B40000-memory.dmp

      Filesize

      64KB

    • memory/1060-12-0x0000010EE6B30000-0x0000010EE6B40000-memory.dmp

      Filesize

      64KB

    • memory/1060-25-0x0000010ECE680000-0x0000010ECE688000-memory.dmp

      Filesize

      32KB

    • memory/1060-27-0x00007FFDC2150000-0x00007FFDC2C11000-memory.dmp

      Filesize

      10.8MB