Analysis

  • max time kernel
    142s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    28-02-2021 07:09

General

  • Target

    0048bbede90d7a4f6e980d38e7ddcfaf3fa4a87a1ac37cfd1b121e970d6c2810.exe

  • Size

    78KB

  • MD5

    9b4497259f9f858244023de231400892

  • SHA1

    08600ea0e22ae8e5168ec56a359d75ae2cf9b413

  • SHA256

    0048bbede90d7a4f6e980d38e7ddcfaf3fa4a87a1ac37cfd1b121e970d6c2810

  • SHA512

    777ffca5982119d346d601c4a6b2e4cefae9e5c05b29312c0676d6ed45478d829524ff3a14885a6fc2e4a27235ad897021342b71665f890ccca2a575397432a4

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0048bbede90d7a4f6e980d38e7ddcfaf3fa4a87a1ac37cfd1b121e970d6c2810.exe
    "C:\Users\Admin\AppData\Local\Temp\0048bbede90d7a4f6e980d38e7ddcfaf3fa4a87a1ac37cfd1b121e970d6c2810.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1052
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\hj0-2r5d.cmdline"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:908
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES4CCE.tmp" "C:\Users\Admin\AppData\Local\Temp\vbcA569891ADCC41608BF993838AFECB1C.TMP"
        3⤵
          PID:2596
      • C:\Users\Admin\AppData\Local\Temp\tmp4905.tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp4905.tmp.exe" C:\Users\Admin\AppData\Local\Temp\0048bbede90d7a4f6e980d38e7ddcfaf3fa4a87a1ac37cfd1b121e970d6c2810.exe
        2⤵
        • Executes dropped EXE
        • Deletes itself
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        PID:2996

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\RES4CCE.tmp

      MD5

      50033cff34bbb3b4ea898402ff14ab38

      SHA1

      f50a71619e5844fed029c620e42bb16d7428f44b

      SHA256

      36a881a27321066a34ac0fed8b94ad8806ea0a43debad078ad941ad39e889797

      SHA512

      5d2ac420f53cb151827cadef46f3a73681d0ebfe9ec4da54ca1576ee0988d583b00f0820861a2e70d7de101a9bd95a3f79d4ffae6b8acb661658da3d68977451

    • C:\Users\Admin\AppData\Local\Temp\hj0-2r5d.0.vb

      MD5

      6d99deea0436e0f3abe7ff2e1b471542

      SHA1

      787f6e736717869aa5197970e5dda40a2d8ef5d9

      SHA256

      a774fa76482b79e9086da5c603c81f6e246cd61032dc004925e3dc720aafaa01

      SHA512

      e92ad5cf8e2f3a952b774d66a9526e403faf2772258f1270bb31de1bb39e48a983b7a1ba9b5345b30c5f14e3e6e5b2fd930f0f941d62d1ba7836664d6bbfe608

    • C:\Users\Admin\AppData\Local\Temp\hj0-2r5d.cmdline

      MD5

      52cf99c9bd16b4b01b91dfc26f4a6a47

      SHA1

      b2deda443de9df8d7714778fe1b58728133f13df

      SHA256

      1ceb37aecc0bb64fe68abf9c7f6c5ce56023ad066ace6639e425b937e9398ea5

      SHA512

      4554afa1c5a4703b84a3e408a30388b39eab3833b2b5c110fca527ca2c0cdfcfa76adcece3108a56bd17bf94f9b4cbf10f8924cafea47e07cbbe1020282c26a0

    • C:\Users\Admin\AppData\Local\Temp\tmp4905.tmp.exe

      MD5

      6d39166faf3d138d312de1dd966af00b

      SHA1

      6bcd7313a3f5be5fbac5488db2302cf63010267a

      SHA256

      e7ffb13d1dd4371ed08c872e26e00658967c576300dd647911035a46acb7e0ac

      SHA512

      bab4083a2f00c0802240f60d97d8e2477dc275b678cb07d055eac284617c5d3ef840aba2684e3f462d2db3241825186eb6b16cca6d60f5646dce44abbdd55169

    • C:\Users\Admin\AppData\Local\Temp\tmp4905.tmp.exe

      MD5

      6d39166faf3d138d312de1dd966af00b

      SHA1

      6bcd7313a3f5be5fbac5488db2302cf63010267a

      SHA256

      e7ffb13d1dd4371ed08c872e26e00658967c576300dd647911035a46acb7e0ac

      SHA512

      bab4083a2f00c0802240f60d97d8e2477dc275b678cb07d055eac284617c5d3ef840aba2684e3f462d2db3241825186eb6b16cca6d60f5646dce44abbdd55169

    • C:\Users\Admin\AppData\Local\Temp\vbcA569891ADCC41608BF993838AFECB1C.TMP

      MD5

      e69aa063f3d26612f10940154203e037

      SHA1

      aeb07aba0e5cbf383f58b5241460105ef4841125

      SHA256

      d1d23584eb070ee95d6b1f2f167f499874d91695acd405e9348129bc7f3fe60c

      SHA512

      2ca4b4193959ff6040538fcd88a152299effaf1c35794cb08ca8c14f8376647a285b19f9d4833103ca03dfbb6ed7e3bd03ed7f9e9765f9046ac98c0bebf31398

    • C:\Users\Admin\AppData\Local\Temp\zCom.resources

      MD5

      4f0e8cf79edb6cd381474b21cabfdf4a

      SHA1

      7018c96b4c5dab7957d4bcdc82c1e7bb3a4f80c4

      SHA256

      e54a257fa391065c120f55841de8c11116ea0e601d90fe1a35dcd340c5dd9cd5

      SHA512

      2451a59d09464e30d0df822d9322dbecb83faa92c5a5b71b7b9db62330c40cc7570d66235f137290074a3c4a9f3d8b3447067ed135f1bb60ea9e18d0df39a107

    • memory/908-11-0x00000000024A0000-0x00000000024A1000-memory.dmp

      Filesize

      4KB

    • memory/908-3-0x0000000000000000-mapping.dmp

    • memory/1052-2-0x0000000002E30000-0x0000000002E31000-memory.dmp

      Filesize

      4KB

    • memory/2596-7-0x0000000000000000-mapping.dmp

    • memory/2996-12-0x0000000000000000-mapping.dmp

    • memory/2996-14-0x00000000005E0000-0x00000000005E1000-memory.dmp

      Filesize

      4KB

    • memory/2996-15-0x00000000005E3000-0x00000000005E5000-memory.dmp

      Filesize

      8KB