Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20230621-en
  • resource tags

    arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
  • submitted
    03/07/2023, 01:12

General

  • Target

    dfc754e4d0cb65246e8d8ba98fb4b79bc200960116292694417d08f158eea015.exe

  • Size

    1.2MB

  • MD5

    424c177d6e52272e7f7d2b8f2d094b2c

  • SHA1

    f0c972c9edc725c2b72a3f365a34de15e6de21e7

  • SHA256

    dfc754e4d0cb65246e8d8ba98fb4b79bc200960116292694417d08f158eea015

  • SHA512

    280e52ef20d2195a08f0b16427d50c6ffffc521ffd3293c365ed49094adc9ada44e64bd9d7d47fc4ef77ee74037580b3165abbc56107d948ecc95fabd7df84fd

  • SSDEEP

    24576:OfOy+60hyd6ZKQqExFfg/fF1fFbe9W1rARpJjBBp/D:OGe0UIkpExFfglZQm2pvBp

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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 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).

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfc754e4d0cb65246e8d8ba98fb4b79bc200960116292694417d08f158eea015.exe
    "C:\Users\Admin\AppData\Local\Temp\dfc754e4d0cb65246e8d8ba98fb4b79bc200960116292694417d08f158eea015.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:940
    • C:\Users\Admin\AppData\Local\Temp\is-OCFMM.tmp\is-7TV0J.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-OCFMM.tmp\is-7TV0J.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\dfc754e4d0cb65246e8d8ba98fb4b79bc200960116292694417d08f158eea015.exe" 961110 139776
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 1
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:540
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 1
          4⤵
            PID:1680
        • C:\Program Files (x86)\ReiSpacer71\ReiSpacer71.exe
          "C:\Program Files (x86)\ReiSpacer71\ReiSpacer71.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of WriteProcessMemory
          PID:1360
          • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Slhf7.exe
            4⤵
            • Executes dropped EXE
            PID:1996

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files (x86)\ReiSpacer71\ReiSpacer71.exe

            Filesize

            1.1MB

            MD5

            de8c2d8bb434baf7c4081ee04d5ca9bd

            SHA1

            cfa59e31ee9601d90e8c3b8a1f8669d20cf86803

            SHA256

            12ae0cdc6d5c239b4581fc9c367c743fabbcf7af1947936a0955fe3f98638450

            SHA512

            07c4eba59b51e2e8739959cea223e51df04814399ac2756d4070d4654b1a69150d1f9d23abd9934916bf97e9ec41d300a559dc83110fd8cbc4c46340ac0bd54a

          • C:\Program Files (x86)\ReiSpacer71\readme.txt

            Filesize

            4KB

            MD5

            ce494d2d223aed950fea67f657d3fa3e

            SHA1

            97a19c02487c41e3a079cd6764afffeb5e838b26

            SHA256

            c8fa111c5b9537e3b6cab9ba763e164e27fa469f2232b82a54b206a7d892b9e9

            SHA512

            687bf3bd7de28dc45ea622672dc59d7e45d9ce83530a7db6462447ea247a9bde061738c454e09b48531aab9cce802c8491aa730e4da65e63daf31c65ffc39fe1

          • C:\Users\Admin\AppData\Local\Temp\is-OCFMM.tmp\is-7TV0J.tmp

            Filesize

            729KB

            MD5

            68bf4df1230cb1bc58336ef6350c5a74

            SHA1

            b551c8c301b63db439a6316af0d7d577434043ba

            SHA256

            410221a48dc0d2cc667c8d68ee819039be2ac515abc5f1beea0da1d68ec742ff

            SHA512

            52e9d08592d5c26b68644d1694ed2295f6edfb47c5db599b4b88d148668fda590c7ca7c779f97f417aa07c3019b9ab5d901a52838ce67cc95f873c092a451b10

          • C:\Users\Admin\AppData\Local\Temp\is-OCFMM.tmp\is-7TV0J.tmp

            Filesize

            729KB

            MD5

            68bf4df1230cb1bc58336ef6350c5a74

            SHA1

            b551c8c301b63db439a6316af0d7d577434043ba

            SHA256

            410221a48dc0d2cc667c8d68ee819039be2ac515abc5f1beea0da1d68ec742ff

            SHA512

            52e9d08592d5c26b68644d1694ed2295f6edfb47c5db599b4b88d148668fda590c7ca7c779f97f417aa07c3019b9ab5d901a52838ce67cc95f873c092a451b10

          • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Slhf7.exe

            Filesize

            72KB

            MD5

            3fb36cb0b7172e5298d2992d42984d06

            SHA1

            439827777df4a337cbb9fa4a4640d0d3fa1738b7

            SHA256

            27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

            SHA512

            6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

          • \Program Files (x86)\ReiSpacer71\ReiSpacer71.exe

            Filesize

            1.1MB

            MD5

            de8c2d8bb434baf7c4081ee04d5ca9bd

            SHA1

            cfa59e31ee9601d90e8c3b8a1f8669d20cf86803

            SHA256

            12ae0cdc6d5c239b4581fc9c367c743fabbcf7af1947936a0955fe3f98638450

            SHA512

            07c4eba59b51e2e8739959cea223e51df04814399ac2756d4070d4654b1a69150d1f9d23abd9934916bf97e9ec41d300a559dc83110fd8cbc4c46340ac0bd54a

          • \Users\Admin\AppData\Local\Temp\is-5OLA3.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • \Users\Admin\AppData\Local\Temp\is-5OLA3.tmp\_isetup\_shfoldr.dll

            Filesize

            22KB

            MD5

            92dc6ef532fbb4a5c3201469a5b5eb63

            SHA1

            3e89ff837147c16b4e41c30d6c796374e0b8e62c

            SHA256

            9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

            SHA512

            9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

          • \Users\Admin\AppData\Local\Temp\is-5OLA3.tmp\_isetup\_shfoldr.dll

            Filesize

            22KB

            MD5

            92dc6ef532fbb4a5c3201469a5b5eb63

            SHA1

            3e89ff837147c16b4e41c30d6c796374e0b8e62c

            SHA256

            9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

            SHA512

            9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

          • \Users\Admin\AppData\Local\Temp\is-OCFMM.tmp\is-7TV0J.tmp

            Filesize

            729KB

            MD5

            68bf4df1230cb1bc58336ef6350c5a74

            SHA1

            b551c8c301b63db439a6316af0d7d577434043ba

            SHA256

            410221a48dc0d2cc667c8d68ee819039be2ac515abc5f1beea0da1d68ec742ff

            SHA512

            52e9d08592d5c26b68644d1694ed2295f6edfb47c5db599b4b88d148668fda590c7ca7c779f97f417aa07c3019b9ab5d901a52838ce67cc95f873c092a451b10

          • \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Slhf7.exe

            Filesize

            72KB

            MD5

            3fb36cb0b7172e5298d2992d42984d06

            SHA1

            439827777df4a337cbb9fa4a4640d0d3fa1738b7

            SHA256

            27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

            SHA512

            6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

          • memory/940-54-0x0000000000400000-0x0000000000428000-memory.dmp

            Filesize

            160KB

          • memory/940-256-0x0000000000400000-0x0000000000428000-memory.dmp

            Filesize

            160KB

          • memory/1360-249-0x0000000000400000-0x0000000001312000-memory.dmp

            Filesize

            15.1MB

          • memory/1360-250-0x0000000000400000-0x0000000001312000-memory.dmp

            Filesize

            15.1MB

          • memory/1360-258-0x0000000000400000-0x0000000001312000-memory.dmp

            Filesize

            15.1MB

          • memory/1640-180-0x0000000000240000-0x0000000000241000-memory.dmp

            Filesize

            4KB

          • memory/1640-248-0x0000000003940000-0x0000000004852000-memory.dmp

            Filesize

            15.1MB

          • memory/1640-257-0x0000000000400000-0x00000000004C6000-memory.dmp

            Filesize

            792KB