Analysis

  • max time kernel
    81s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-03-2023 17:58

General

  • Target

    file.exe

  • Size

    3.0MB

  • MD5

    449410c45c0baf7fce8da32950063d6d

  • SHA1

    ff7de2f8403a036ede33a9b893f6902bf30eeb83

  • SHA256

    b2a919d54f551c37d450ee54568d0616d8ebf0ceec10af497482a0cbc948c43b

  • SHA512

    ef8cabdc7f10d54cd2cb2b8a1c028a09ebe75b3c555ce6ab16e4315b0a23183b95b6e4c59a9991f8e62d2b0c27a7777f196eb6202f8ba15f1074fcd287139749

  • SSDEEP

    98304:d/R+ltKuAiMtJ9XkSLX1sbWsCrL7QUFbRPOKz:jcAuUP9USLzsmL7QUFbRW4

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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4416
    • C:\Users\Admin\AppData\Local\Temp\is-T7OCN.tmp\is-QPETJ.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-T7OCN.tmp\is-QPETJ.tmp" /SL4 $90032 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2916868 52736
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Program Files (x86)\FIVsoftFR\FRec314\FRec314.exe
        "C:\Program Files (x86)\FIVsoftFR\FRec314\FRec314.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1532
        • C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\IncujA3lvP482.exe
          4⤵
          • Executes dropped EXE
          PID:4728
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec314.exe" /f & erase "C:\Program Files (x86)\FIVsoftFR\FRec314\FRec314.exe" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3592
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /im "FRec314.exe" /f
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:4484

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\FIVsoftFR\FRec314\FRec314.exe

    Filesize

    3.4MB

    MD5

    c924c48ba432338cadfa5b4021805ea1

    SHA1

    8604f240073fcc3d44f8431891784ed52f015b03

    SHA256

    65bc63fa373922903e8f0076789a65e665c9600c46a0ac1c5fbe13c1dda45449

    SHA512

    cba3f9d445bd8c553fa21e284ae9b4884bf604378a87b4ec87f3749976778aafa6c207b66df7d57d2d8535e94fcc5c663feeffd038b548ae885fedeebd29c1b2

  • C:\Program Files (x86)\FIVsoftFR\FRec314\FRec314.exe

    Filesize

    3.4MB

    MD5

    c924c48ba432338cadfa5b4021805ea1

    SHA1

    8604f240073fcc3d44f8431891784ed52f015b03

    SHA256

    65bc63fa373922903e8f0076789a65e665c9600c46a0ac1c5fbe13c1dda45449

    SHA512

    cba3f9d445bd8c553fa21e284ae9b4884bf604378a87b4ec87f3749976778aafa6c207b66df7d57d2d8535e94fcc5c663feeffd038b548ae885fedeebd29c1b2

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\G1ORIWBN\dll[1].htm

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • C:\Users\Admin\AppData\Local\Temp\is-T7OCN.tmp\is-QPETJ.tmp

    Filesize

    658KB

    MD5

    71c654797ffa6853389354687dde286b

    SHA1

    edd7178ab9043acc4a05dddb9dad972ede2f7748

    SHA256

    97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

    SHA512

    d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

  • C:\Users\Admin\AppData\Local\Temp\is-T7OCN.tmp\is-QPETJ.tmp

    Filesize

    658KB

    MD5

    71c654797ffa6853389354687dde286b

    SHA1

    edd7178ab9043acc4a05dddb9dad972ede2f7748

    SHA256

    97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

    SHA512

    d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

  • C:\Users\Admin\AppData\Local\Temp\is-VB2TH.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-VB2TH.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Local\Temp\is-VB2TH.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\IncujA3lvP482.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\IncujA3lvP482.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • memory/1100-186-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1100-204-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1100-168-0x0000000000640000-0x0000000000641000-memory.dmp

    Filesize

    4KB

  • memory/1532-172-0x0000000000400000-0x000000000156A000-memory.dmp

    Filesize

    17.4MB

  • memory/1532-180-0x0000000010000000-0x000000001001B000-memory.dmp

    Filesize

    108KB

  • memory/1532-188-0x0000000000400000-0x000000000156A000-memory.dmp

    Filesize

    17.4MB

  • memory/1532-171-0x0000000000400000-0x000000000156A000-memory.dmp

    Filesize

    17.4MB

  • memory/1532-203-0x0000000000400000-0x000000000156A000-memory.dmp

    Filesize

    17.4MB

  • memory/4416-133-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4416-185-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4416-205-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB