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Analysis

  • max time kernel
    67s
  • max time network
    69s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/02/2023, 18:31

General

  • Target

    file.exe

  • Size

    2.0MB

  • MD5

    56619eb249a4bb7fd54b59b5f6d8b1c9

  • SHA1

    316e051a18fd785a9bf1d5814a9b42f6e74c7eae

  • SHA256

    e8079c283cdf53221bd815deef6b33ace170cb1811ce2d2ab79dbc763ba3794a

  • SHA512

    9b13fd0402aa138ec954c832e10f70d2e6defba47b7de36c2df94d9e12ff7cd0c3fe294e86786fa3fc157d3b3bddbd7dc43271b457e87e14e854ad5627855fd6

  • SSDEEP

    49152:yg9gVUYilVxGMrn220Q6IT8qh9qfh2UkLCgv2MR:TKV4xDP0QJTPaAUUv2MR

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 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:1688
    • C:\Users\Admin\AppData\Local\Temp\is-BIV6P.tmp\file.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-BIV6P.tmp\file.tmp" /SL5="$60122,1838309,73216,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:2004
      • C:\Program Files (x86)\FHIsoftFR\FinalRecovery\finalrecovery.exe
        "C:\Program Files (x86)\FHIsoftFR\FinalRecovery\finalrecovery.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:628
        • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\KJY2rEpTlsGF72.exe
          4⤵
          • Executes dropped EXE
          PID:1200
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FHIsoftFR\FinalRecovery\finalrecovery.exe" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1784
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /im "finalrecovery.exe" /f
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:812

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\FHIsoftFR\FinalRecovery\finalrecovery.exe

    Filesize

    1.8MB

    MD5

    82a826aa55e0334c68dede69c4d1d17d

    SHA1

    64a748f17f08fb0715f33059bc093c188db07a68

    SHA256

    13a7d1b0991ff7d86e81610d4f755cad69f651bf5ce72055c23e1c8a183bb53d

    SHA512

    9816c1f105fafca93a644ebbcc4ce5fb1203532c95b818727880e280a7758a2e3d4dbf85ac9d93272359532231da09a14ee759c007fb22f7d05cffe5180530cc

  • C:\Program Files (x86)\FHIsoftFR\FinalRecovery\finalrecovery.exe

    Filesize

    1.8MB

    MD5

    82a826aa55e0334c68dede69c4d1d17d

    SHA1

    64a748f17f08fb0715f33059bc093c188db07a68

    SHA256

    13a7d1b0991ff7d86e81610d4f755cad69f651bf5ce72055c23e1c8a183bb53d

    SHA512

    9816c1f105fafca93a644ebbcc4ce5fb1203532c95b818727880e280a7758a2e3d4dbf85ac9d93272359532231da09a14ee759c007fb22f7d05cffe5180530cc

  • C:\Users\Admin\AppData\Local\Temp\is-BIV6P.tmp\file.tmp

    Filesize

    696KB

    MD5

    d76329b30db65f61d55b20f36b56da26

    SHA1

    5e4c77b723ae8f05b3ae6afeee735a4355f00663

    SHA256

    229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

    SHA512

    a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

  • C:\Users\Admin\AppData\Local\Temp\is-BIV6P.tmp\file.tmp

    Filesize

    696KB

    MD5

    d76329b30db65f61d55b20f36b56da26

    SHA1

    5e4c77b723ae8f05b3ae6afeee735a4355f00663

    SHA256

    229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

    SHA512

    a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

  • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\KJY2rEpTlsGF72.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • \Program Files (x86)\FHIsoftFR\FinalRecovery\finalrecovery.exe

    Filesize

    1.8MB

    MD5

    82a826aa55e0334c68dede69c4d1d17d

    SHA1

    64a748f17f08fb0715f33059bc093c188db07a68

    SHA256

    13a7d1b0991ff7d86e81610d4f755cad69f651bf5ce72055c23e1c8a183bb53d

    SHA512

    9816c1f105fafca93a644ebbcc4ce5fb1203532c95b818727880e280a7758a2e3d4dbf85ac9d93272359532231da09a14ee759c007fb22f7d05cffe5180530cc

  • \Users\Admin\AppData\Local\Temp\is-BIV6P.tmp\file.tmp

    Filesize

    696KB

    MD5

    d76329b30db65f61d55b20f36b56da26

    SHA1

    5e4c77b723ae8f05b3ae6afeee735a4355f00663

    SHA256

    229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

    SHA512

    a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

  • \Users\Admin\AppData\Local\Temp\is-BP56S.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-BP56S.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-BP56S.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\KJY2rEpTlsGF72.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • memory/628-70-0x0000000000400000-0x00000000013D8000-memory.dmp

    Filesize

    15.8MB

  • memory/628-77-0x0000000010000000-0x000000001001B000-memory.dmp

    Filesize

    108KB

  • memory/628-84-0x0000000000400000-0x00000000013D8000-memory.dmp

    Filesize

    15.8MB

  • memory/628-81-0x0000000000400000-0x00000000013D8000-memory.dmp

    Filesize

    15.8MB

  • memory/628-71-0x0000000000400000-0x00000000013D8000-memory.dmp

    Filesize

    15.8MB

  • memory/628-73-0x0000000000400000-0x00000000013D8000-memory.dmp

    Filesize

    15.8MB

  • memory/1688-68-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/1688-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

    Filesize

    8KB

  • memory/1688-85-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/1688-55-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/2004-80-0x00000000035C0000-0x0000000004598000-memory.dmp

    Filesize

    15.8MB

  • memory/2004-69-0x00000000035C0000-0x0000000004598000-memory.dmp

    Filesize

    15.8MB