Analysis

  • max time kernel
    182s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-02-2023 17:31

General

  • Target

    file.exe

  • Size

    2.5MB

  • MD5

    b46f3353de5a7cffc0d8691996a75365

  • SHA1

    285a5feac9e8de3ffa3cd43e58b394a5890adcdd

  • SHA256

    8358cd902e70dc3b1d350e98bc0cc1d1e1d23dc35441226194c594a6c435d982

  • SHA512

    1f0c91b2ce4b7cc8e7832b00386a307c828226e98ebe2d83d42b976a8e64042706e993c2540d7171be320bd52dc62b91f1c016f47e00718efa6454f3ff337319

  • SSDEEP

    49152:rdHmyf7f1JadMp3yMsvtFKRE8IZlXYuzulCXVe4oF114yzMoEVGhzKPRLCgv2MR:JHDGMp3AviRE8Qz6UVe4ov14yzWGa9vV

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 behavior: GetForegroundWindowSpam 1 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:2836
    • C:\Users\Admin\AppData\Local\Temp\is-FKN4A.tmp\file.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-FKN4A.tmp\file.tmp" /SL5="$A01C0,2401611,387072,C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:3352
      • C:\Program Files (x86)\FHPsoftFR\FRec210\FRec210.exe
        "C:\Program Files (x86)\FHPsoftFR\FRec210\FRec210.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of WriteProcessMemory
        PID:1188
        • C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\GlWM3WYzGz.exe
          4⤵
          • Executes dropped EXE
          PID:4236
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec210.exe" /f & erase "C:\Program Files (x86)\FHPsoftFR\FRec210\FRec210.exe" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2772
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /im "FRec210.exe" /f
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:4688

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\FHPsoftFR\FRec210\FRec210.exe

    Filesize

    2.2MB

    MD5

    3999fde5f32f3a79cef38960e59694e1

    SHA1

    18fa50f89e40d1213f6d2ffc5fd71df2f4d2bce2

    SHA256

    55ebc7d3213f5e207d1b5d8c79eeae2b2bdc16ba18c2307c57f5582a8ff668e1

    SHA512

    375cdffb7506ccdad50e297282b6132914e3c4d54aa0a61179ef52c6a8f0b8159bfb9194d86d00d9149808759f8e1ebd7d3e7365dc3e08cbf83e66925010a48e

  • C:\Program Files (x86)\FHPsoftFR\FRec210\FRec210.exe

    Filesize

    2.2MB

    MD5

    3999fde5f32f3a79cef38960e59694e1

    SHA1

    18fa50f89e40d1213f6d2ffc5fd71df2f4d2bce2

    SHA256

    55ebc7d3213f5e207d1b5d8c79eeae2b2bdc16ba18c2307c57f5582a8ff668e1

    SHA512

    375cdffb7506ccdad50e297282b6132914e3c4d54aa0a61179ef52c6a8f0b8159bfb9194d86d00d9149808759f8e1ebd7d3e7365dc3e08cbf83e66925010a48e

  • C:\Users\Admin\AppData\Local\Temp\is-FKN4A.tmp\file.tmp

    Filesize

    696KB

    MD5

    d76329b30db65f61d55b20f36b56da26

    SHA1

    5e4c77b723ae8f05b3ae6afeee735a4355f00663

    SHA256

    229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

    SHA512

    a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

  • C:\Users\Admin\AppData\Local\Temp\is-FKN4A.tmp\file.tmp

    Filesize

    696KB

    MD5

    d76329b30db65f61d55b20f36b56da26

    SHA1

    5e4c77b723ae8f05b3ae6afeee735a4355f00663

    SHA256

    229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

    SHA512

    a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

  • C:\Users\Admin\AppData\Local\Temp\is-TFH8C.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-TFH8C.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Local\Temp\is-TFH8C.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\GlWM3WYzGz.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\GlWM3WYzGz.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • memory/1188-151-0x0000000000400000-0x000000000143B000-memory.dmp

    Filesize

    16.2MB

  • memory/1188-152-0x0000000010000000-0x000000001001B000-memory.dmp

    Filesize

    108KB

  • memory/1188-144-0x0000000000400000-0x000000000143B000-memory.dmp

    Filesize

    16.2MB

  • memory/1188-145-0x0000000000400000-0x000000000143B000-memory.dmp

    Filesize

    16.2MB

  • memory/1188-146-0x0000000000400000-0x000000000143B000-memory.dmp

    Filesize

    16.2MB

  • memory/1188-157-0x0000000000400000-0x000000000143B000-memory.dmp

    Filesize

    16.2MB

  • memory/1188-141-0x0000000000000000-mapping.dmp

  • memory/2772-155-0x0000000000000000-mapping.dmp

  • memory/2836-150-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2836-132-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2836-158-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3352-134-0x0000000000000000-mapping.dmp

  • memory/3352-139-0x0000000002571000-0x0000000002573000-memory.dmp

    Filesize

    8KB

  • memory/4236-147-0x0000000000000000-mapping.dmp

  • memory/4688-156-0x0000000000000000-mapping.dmp