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Analysis

  • max time kernel
    63s
  • max time network
    69s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    12/02/2023, 13:04

General

  • Target

    file.exe

  • Size

    3.4MB

  • MD5

    c9cb5cf4b05a3f2526a7922feefae207

  • SHA1

    d9300522dff9fc4f180106c89f32c77805506c5d

  • SHA256

    76aca6e8127c61c9c25921793c5be2b55132532e87a3b2822ebaebf342fe99fc

  • SHA512

    be373fc97abb2d736fc14ae3341ee8aae81c8f515536c23a55350b4ce76f744556b2c37dda9789da57b6872a38386e518bfa5a8740a78da3537dc1944e0e1532

  • SSDEEP

    49152:rdH5bPYP0ADYetBHe/noL0gBgjFTnWDQWNdKLb9lT//cj+2t9ZaUXA64zQNemye4:JH5OBmoL0yQ0Ub9lKZtszQNc9tv2MR

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 7 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\is-I70C2.tmp\file.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-I70C2.tmp\file.tmp" /SL5="$70120,3325163,387072,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:984
      • C:\Program Files (x86)\FHRsoftFR\FRec212\FRec212.exe
        "C:\Program Files (x86)\FHRsoftFR\FRec212\FRec212.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1248
        • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Yo3tKgLdxui.exe
          4⤵
          • Executes dropped EXE
          PID:1192
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec212.exe" /f & erase "C:\Program Files (x86)\FHRsoftFR\FRec212\FRec212.exe" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2036
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /im "FRec212.exe" /f
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1476

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\FHRsoftFR\FRec212\FRec212.exe

    Filesize

    3.5MB

    MD5

    e1bda94c142211a659c953f9dd866ed8

    SHA1

    b0cfc12eb82710278818cc08b12020951bce0280

    SHA256

    c9fdbfa61f299395303944b56b9dc805cf34a9a7530659ac48a749e40bc1e6a7

    SHA512

    57b5b3c4a6e53064c580045c3a6a81e0b7c71ec38a986222050beed2d8307a9778038707e61be24888025f43df9c1aa8ac95cb80284e3a890f5347f56ec44e1c

  • C:\Program Files (x86)\FHRsoftFR\FRec212\FRec212.exe

    Filesize

    3.5MB

    MD5

    e1bda94c142211a659c953f9dd866ed8

    SHA1

    b0cfc12eb82710278818cc08b12020951bce0280

    SHA256

    c9fdbfa61f299395303944b56b9dc805cf34a9a7530659ac48a749e40bc1e6a7

    SHA512

    57b5b3c4a6e53064c580045c3a6a81e0b7c71ec38a986222050beed2d8307a9778038707e61be24888025f43df9c1aa8ac95cb80284e3a890f5347f56ec44e1c

  • C:\Users\Admin\AppData\Local\Temp\is-I70C2.tmp\file.tmp

    Filesize

    696KB

    MD5

    d76329b30db65f61d55b20f36b56da26

    SHA1

    5e4c77b723ae8f05b3ae6afeee735a4355f00663

    SHA256

    229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

    SHA512

    a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

  • C:\Users\Admin\AppData\Local\Temp\is-I70C2.tmp\file.tmp

    Filesize

    696KB

    MD5

    d76329b30db65f61d55b20f36b56da26

    SHA1

    5e4c77b723ae8f05b3ae6afeee735a4355f00663

    SHA256

    229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

    SHA512

    a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

  • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Yo3tKgLdxui.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • \Program Files (x86)\FHRsoftFR\FRec212\FRec212.exe

    Filesize

    3.5MB

    MD5

    e1bda94c142211a659c953f9dd866ed8

    SHA1

    b0cfc12eb82710278818cc08b12020951bce0280

    SHA256

    c9fdbfa61f299395303944b56b9dc805cf34a9a7530659ac48a749e40bc1e6a7

    SHA512

    57b5b3c4a6e53064c580045c3a6a81e0b7c71ec38a986222050beed2d8307a9778038707e61be24888025f43df9c1aa8ac95cb80284e3a890f5347f56ec44e1c

  • \Users\Admin\AppData\Local\Temp\is-HU342.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-HU342.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • \Users\Admin\AppData\Local\Temp\is-HU342.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-HU342.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-I70C2.tmp\file.tmp

    Filesize

    696KB

    MD5

    d76329b30db65f61d55b20f36b56da26

    SHA1

    5e4c77b723ae8f05b3ae6afeee735a4355f00663

    SHA256

    229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

    SHA512

    a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

  • \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Yo3tKgLdxui.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • memory/984-71-0x0000000002DE0000-0x0000000003F64000-memory.dmp

    Filesize

    17.5MB

  • memory/984-81-0x0000000002DE0000-0x0000000003F64000-memory.dmp

    Filesize

    17.5MB

  • memory/1248-78-0x0000000010000000-0x000000001001B000-memory.dmp

    Filesize

    108KB

  • memory/1248-82-0x0000000000400000-0x0000000001584000-memory.dmp

    Filesize

    17.5MB

  • memory/1248-86-0x0000000000400000-0x0000000001584000-memory.dmp

    Filesize

    17.5MB

  • memory/1248-73-0x0000000000400000-0x0000000001584000-memory.dmp

    Filesize

    17.5MB

  • memory/1248-72-0x0000000000400000-0x0000000001584000-memory.dmp

    Filesize

    17.5MB

  • memory/1248-83-0x0000000000400000-0x0000000001584000-memory.dmp

    Filesize

    17.5MB

  • memory/1248-74-0x0000000000400000-0x0000000001584000-memory.dmp

    Filesize

    17.5MB

  • memory/1700-54-0x0000000074E41000-0x0000000074E43000-memory.dmp

    Filesize

    8KB

  • memory/1700-66-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/1700-87-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/1700-55-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB