Analysis

  • max time kernel
    83s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-04-2023 01:37

General

  • Target

    ee0c4507323cbdb7411a605690e58c296e8a8624a52ca2f39c00bbf4290baf9e.exe

  • Size

    2.6MB

  • MD5

    607febf340242ab0d7f58a082c47fdbf

  • SHA1

    75e49d23d053a3848d71ee68ed5836f8b9dc3243

  • SHA256

    ee0c4507323cbdb7411a605690e58c296e8a8624a52ca2f39c00bbf4290baf9e

  • SHA512

    d5fb70f0a4d0d82df5f2b3f8bf7890805c02edfa33d8c910f661d9e10b88a85f460055b652cf52094af73987d796195231c8ff9046117ec45a74eda00e022dfe

  • SSDEEP

    49152:zGlJfs2GrxjNBZr0EmlxqMQ+7l9vmA0bXp/TQIBoh6ZbVoWHygU:qerdNBZ4EmTe+7lll0bZTnu8VoWSt

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 3 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 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ee0c4507323cbdb7411a605690e58c296e8a8624a52ca2f39c00bbf4290baf9e.exe
    "C:\Users\Admin\AppData\Local\Temp\ee0c4507323cbdb7411a605690e58c296e8a8624a52ca2f39c00bbf4290baf9e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Users\Admin\AppData\Local\Temp\is-KDU2J.tmp\is-OVMV4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-KDU2J.tmp\is-OVMV4.tmp" /SL4 $B0058 "C:\Users\Admin\AppData\Local\Temp\ee0c4507323cbdb7411a605690e58c296e8a8624a52ca2f39c00bbf4290baf9e.exe" 2480535 56320
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4060
      • C:\Program Files (x86)\FKBsoftFR\Rec417\Rec417.exe
        "C:\Program Files (x86)\FKBsoftFR\Rec417\Rec417.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3192
        • C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\gLlBJFeqMAo.exe
          4⤵
          • Executes dropped EXE
          PID:5064
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /im "Rec417.exe" /f & erase "C:\Program Files (x86)\FKBsoftFR\Rec417\Rec417.exe" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2232
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /im "Rec417.exe" /f
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:4856

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\FKBsoftFR\Rec417\Rec417.exe

    Filesize

    2.9MB

    MD5

    366bfa790fd02fcbeb60c68899a72b27

    SHA1

    1b28dbd0e4d89b096b171e09f8a5c2d374d9246d

    SHA256

    d14479656188c0aa2ae87aaf1884eec5ed76b444c671ed5ca590149a5faee693

    SHA512

    3f7ba20d383446e0cbaac1e6ae2677b331bfc4c8cfc16d68f867bbecc56e445ec3e2658f523c8a8d89900e1f0e3741d53db303e87b3baed3206e0f0fdd572e48

  • C:\Program Files (x86)\FKBsoftFR\Rec417\Rec417.exe

    Filesize

    2.9MB

    MD5

    366bfa790fd02fcbeb60c68899a72b27

    SHA1

    1b28dbd0e4d89b096b171e09f8a5c2d374d9246d

    SHA256

    d14479656188c0aa2ae87aaf1884eec5ed76b444c671ed5ca590149a5faee693

    SHA512

    3f7ba20d383446e0cbaac1e6ae2677b331bfc4c8cfc16d68f867bbecc56e445ec3e2658f523c8a8d89900e1f0e3741d53db303e87b3baed3206e0f0fdd572e48

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\RP56V4OA\dll[1].htm

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • C:\Users\Admin\AppData\Local\Temp\is-DRMP0.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-DRMP0.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Local\Temp\is-DRMP0.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Local\Temp\is-KDU2J.tmp\is-OVMV4.tmp

    Filesize

    659KB

    MD5

    57d101722b08967ce53be6109b7f6ccf

    SHA1

    f62e5f39efbfb03d0ddd822963122eb1945d9f18

    SHA256

    5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

    SHA512

    57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

  • C:\Users\Admin\AppData\Local\Temp\is-KDU2J.tmp\is-OVMV4.tmp

    Filesize

    659KB

    MD5

    57d101722b08967ce53be6109b7f6ccf

    SHA1

    f62e5f39efbfb03d0ddd822963122eb1945d9f18

    SHA256

    5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

    SHA512

    57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

  • C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\gLlBJFeqMAo.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\gLlBJFeqMAo.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • memory/1968-133-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1968-185-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1968-205-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3192-172-0x0000000000400000-0x00000000014E6000-memory.dmp

    Filesize

    16.9MB

  • memory/3192-180-0x0000000010000000-0x000000001001B000-memory.dmp

    Filesize

    108KB

  • memory/3192-188-0x0000000000400000-0x00000000014E6000-memory.dmp

    Filesize

    16.9MB

  • memory/3192-171-0x0000000000400000-0x00000000014E6000-memory.dmp

    Filesize

    16.9MB

  • memory/3192-203-0x0000000000400000-0x00000000014E6000-memory.dmp

    Filesize

    16.9MB

  • memory/4060-186-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

  • memory/4060-204-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

  • memory/4060-168-0x0000000002330000-0x0000000002331000-memory.dmp

    Filesize

    4KB