Analysis

  • max time kernel
    139s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-07-2023 12:55

General

  • Target

    file.exe

  • Size

    1.2MB

  • MD5

    e013b2105484ebaebd58868a649ee074

  • SHA1

    1295111fd9c2e956f1d78e82f700ea1fc405aac3

  • SHA256

    84b80a9d2421c0e7a5d401bf3496854b910dcf1fd8c7b38236d6bae8520036a9

  • SHA512

    43877f0149088048017d871c1bdf74c864ba236524502dcb1c5c022fa94d8594d5e530719a4dbd6f068982d728cf050431e0267d1a6620b7b3b75915ba07eede

  • SSDEEP

    24576:OfOym3/CYBFXwnxWXBk0MffRZ6T0tfnIqdl2vSBreuS2w02VnKU:OG9tHHXBixUcRFeuZknn

Malware Config

Extracted

Family

gcleaner

C2

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Signatures

  • GCleaner

    GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Users\Admin\AppData\Local\Temp\is-Q2F9N.tmp\is-4DU3V.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-Q2F9N.tmp\is-4DU3V.tmp" /SL4 $70092 "C:\Users\Admin\AppData\Local\Temp\file.exe" 952149 118272
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2332
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 13
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1048
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 13
          4⤵
            PID:904
        • C:\Program Files (x86)\RevSpacer713\RevSpacer713.exe
          "C:\Program Files (x86)\RevSpacer713\RevSpacer713.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2956
          • C:\Users\Admin\AppData\Roaming\{d31c9c85-19e1-11ee-af52-806e6f6e6963}\e8tcVx5pNoc.exe
            4⤵
            • Executes dropped EXE
            PID:3644
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c taskkill /im "RevSpacer713.exe" /f & erase "C:\Program Files (x86)\RevSpacer713\RevSpacer713.exe" & exit
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4492
            • C:\Windows\SysWOW64\taskkill.exe
              taskkill /im "RevSpacer713.exe" /f
              5⤵
              • Kills process with taskkill
              • Suspicious use of AdjustPrivilegeToken
              PID:1464

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\RevSpacer713\RevSpacer713.exe

      Filesize

      1.2MB

      MD5

      9783fa1931e10f5fa19e076d7903a552

      SHA1

      d4feb2ef4777feb1632fa6755c57cb2c24f6ac92

      SHA256

      45460ba5cad9300a2cee9de2c99087211a79fd946a041f51136dd0de2ef0bbc1

      SHA512

      cd2dc5083b56102df07f79220b2b1f7827639955c0bd2f148d0b7cbe402a6b773dfb6c1d7f61627695237cb0fdc9643fcf3dda961593d81ad7c796bcb8a38e4f

    • C:\Program Files (x86)\RevSpacer713\RevSpacer713.exe

      Filesize

      1.2MB

      MD5

      9783fa1931e10f5fa19e076d7903a552

      SHA1

      d4feb2ef4777feb1632fa6755c57cb2c24f6ac92

      SHA256

      45460ba5cad9300a2cee9de2c99087211a79fd946a041f51136dd0de2ef0bbc1

      SHA512

      cd2dc5083b56102df07f79220b2b1f7827639955c0bd2f148d0b7cbe402a6b773dfb6c1d7f61627695237cb0fdc9643fcf3dda961593d81ad7c796bcb8a38e4f

    • C:\Program Files (x86)\RevSpacer713\readme.txt

      Filesize

      4KB

      MD5

      ce494d2d223aed950fea67f657d3fa3e

      SHA1

      97a19c02487c41e3a079cd6764afffeb5e838b26

      SHA256

      c8fa111c5b9537e3b6cab9ba763e164e27fa469f2232b82a54b206a7d892b9e9

      SHA512

      687bf3bd7de28dc45ea622672dc59d7e45d9ce83530a7db6462447ea247a9bde061738c454e09b48531aab9cce802c8491aa730e4da65e63daf31c65ffc39fe1

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\7QVM26BR\dll[1].htm

      Filesize

      1B

      MD5

      cfcd208495d565ef66e7dff9f98764da

      SHA1

      b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

      SHA256

      5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

      SHA512

      31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

    • C:\Users\Admin\AppData\Local\Temp\is-5FTCO.tmp\_isetup\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-Q2F9N.tmp\is-4DU3V.tmp

      Filesize

      712KB

      MD5

      d8c44f59161e44c570cc553a6c31daf5

      SHA1

      ca28b3950c2742c8c651bc438fa86524e9fb47f4

      SHA256

      68fd47d30592128096c574b6281493b9b8e2ca3e412ab7545d0df50d246a3f3f

      SHA512

      6b4af10ad054df1f1d790002e56dfa8741c46e345b9705f321d92fa1246c75b7fa326f9f33d3fe6a6ccfe8d4c163b8e3dd847ac388e5d468e31ca4c683ddf390

    • C:\Users\Admin\AppData\Local\Temp\is-Q2F9N.tmp\is-4DU3V.tmp

      Filesize

      712KB

      MD5

      d8c44f59161e44c570cc553a6c31daf5

      SHA1

      ca28b3950c2742c8c651bc438fa86524e9fb47f4

      SHA256

      68fd47d30592128096c574b6281493b9b8e2ca3e412ab7545d0df50d246a3f3f

      SHA512

      6b4af10ad054df1f1d790002e56dfa8741c46e345b9705f321d92fa1246c75b7fa326f9f33d3fe6a6ccfe8d4c163b8e3dd847ac388e5d468e31ca4c683ddf390

    • C:\Users\Admin\AppData\Roaming\{d31c9c85-19e1-11ee-af52-806e6f6e6963}\e8tcVx5pNoc.exe

      Filesize

      72KB

      MD5

      3fb36cb0b7172e5298d2992d42984d06

      SHA1

      439827777df4a337cbb9fa4a4640d0d3fa1738b7

      SHA256

      27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

      SHA512

      6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

    • C:\Users\Admin\AppData\Roaming\{d31c9c85-19e1-11ee-af52-806e6f6e6963}\e8tcVx5pNoc.exe

      Filesize

      72KB

      MD5

      3fb36cb0b7172e5298d2992d42984d06

      SHA1

      439827777df4a337cbb9fa4a4640d0d3fa1738b7

      SHA256

      27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

      SHA512

      6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

    • memory/2132-362-0x0000000000400000-0x0000000000423000-memory.dmp

      Filesize

      140KB

    • memory/2132-134-0x0000000000400000-0x0000000000423000-memory.dmp

      Filesize

      140KB

    • memory/2132-327-0x0000000000400000-0x0000000000423000-memory.dmp

      Filesize

      140KB

    • memory/2332-339-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2332-340-0x0000000002250000-0x0000000002251000-memory.dmp

      Filesize

      4KB

    • memory/2332-361-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2332-140-0x0000000002250000-0x0000000002251000-memory.dmp

      Filesize

      4KB

    • memory/2956-326-0x0000000000400000-0x000000000132F000-memory.dmp

      Filesize

      15.2MB

    • memory/2956-335-0x0000000010000000-0x000000001001B000-memory.dmp

      Filesize

      108KB

    • memory/2956-325-0x0000000000400000-0x000000000132F000-memory.dmp

      Filesize

      15.2MB

    • memory/2956-342-0x0000000000400000-0x000000000132F000-memory.dmp

      Filesize

      15.2MB

    • memory/2956-324-0x0000000000400000-0x000000000132F000-memory.dmp

      Filesize

      15.2MB

    • memory/2956-360-0x0000000000400000-0x000000000132F000-memory.dmp

      Filesize

      15.2MB