Analysis

  • max time kernel
    59s
  • max time network
    61s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06/02/2023, 08:58

General

  • Target

    8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4.exe

  • Size

    2.2MB

  • MD5

    5441daca0d28d6eda01b210bf0ea6f4d

  • SHA1

    b51dfeaccf362d94f560e99183c98914fe8b7a3e

  • SHA256

    8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4

  • SHA512

    31eb22b762535e3c86ca7e1e40746b5a12d6b15eb8a77ee72e3ca9368e70413ab04038a26364f92b5bb131dd3306cd37c51781c19161e89b1505f80f4e3bc372

  • SSDEEP

    49152:d3ZLVuye5cdCIfP1aaOpQ/BDaFSX+yRPwB4e0LEsLCgv2MR:XLVuyIcdCU9aaOpQJDo4e0LLv2MR

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\8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4.exe
    "C:\Users\Admin\AppData\Local\Temp\8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:752
    • C:\Users\Admin\AppData\Local\Temp\is-F6K88.tmp\8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-F6K88.tmp\8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4.tmp" /SL5="$60124,2045865,345600,C:\Users\Admin\AppData\Local\Temp\8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:884
      • C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe
        "C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1988
        • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Ff8re7027X.exe
          4⤵
          • Executes dropped EXE
          PID:1984
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec24.exe" /f & erase "C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1384
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /im "FRec24.exe" /f
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1724

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe

          Filesize

          1.8MB

          MD5

          dbc38c827a354d975ac93cbe2874e297

          SHA1

          7e6d22454e048fb333367d54fad111ce5e3d8ead

          SHA256

          b5a290673ba5e2d6eb4e66914730c8e106abcc043c42aad41f4ade601478872a

          SHA512

          0f409e48c8c1babcf8781fa17636f94cc34938479f5254930ef9b457ddf8773d848efa84d0646e26fcae1e9c70b7f5d0f127ca7a66682091793cf23dddc9d7ca

        • C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe

          Filesize

          1.8MB

          MD5

          dbc38c827a354d975ac93cbe2874e297

          SHA1

          7e6d22454e048fb333367d54fad111ce5e3d8ead

          SHA256

          b5a290673ba5e2d6eb4e66914730c8e106abcc043c42aad41f4ade601478872a

          SHA512

          0f409e48c8c1babcf8781fa17636f94cc34938479f5254930ef9b457ddf8773d848efa84d0646e26fcae1e9c70b7f5d0f127ca7a66682091793cf23dddc9d7ca

        • C:\Users\Admin\AppData\Local\Temp\is-F6K88.tmp\8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4.tmp

          Filesize

          696KB

          MD5

          d76329b30db65f61d55b20f36b56da26

          SHA1

          5e4c77b723ae8f05b3ae6afeee735a4355f00663

          SHA256

          229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

          SHA512

          a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

        • C:\Users\Admin\AppData\Local\Temp\is-F6K88.tmp\8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4.tmp

          Filesize

          696KB

          MD5

          d76329b30db65f61d55b20f36b56da26

          SHA1

          5e4c77b723ae8f05b3ae6afeee735a4355f00663

          SHA256

          229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

          SHA512

          a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

        • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Ff8re7027X.exe

          Filesize

          72KB

          MD5

          3fb36cb0b7172e5298d2992d42984d06

          SHA1

          439827777df4a337cbb9fa4a4640d0d3fa1738b7

          SHA256

          27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

          SHA512

          6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

        • \Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe

          Filesize

          1.8MB

          MD5

          dbc38c827a354d975ac93cbe2874e297

          SHA1

          7e6d22454e048fb333367d54fad111ce5e3d8ead

          SHA256

          b5a290673ba5e2d6eb4e66914730c8e106abcc043c42aad41f4ade601478872a

          SHA512

          0f409e48c8c1babcf8781fa17636f94cc34938479f5254930ef9b457ddf8773d848efa84d0646e26fcae1e9c70b7f5d0f127ca7a66682091793cf23dddc9d7ca

        • \Users\Admin\AppData\Local\Temp\is-F6K88.tmp\8fd252a96657e5cc2cf702778aa5e4b2385a3f0d10f342a41caa2ed335ca5fc4.tmp

          Filesize

          696KB

          MD5

          d76329b30db65f61d55b20f36b56da26

          SHA1

          5e4c77b723ae8f05b3ae6afeee735a4355f00663

          SHA256

          229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

          SHA512

          a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

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

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Ff8re7027X.exe

          Filesize

          72KB

          MD5

          3fb36cb0b7172e5298d2992d42984d06

          SHA1

          439827777df4a337cbb9fa4a4640d0d3fa1738b7

          SHA256

          27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

          SHA512

          6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

        • memory/752-68-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/752-55-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/752-54-0x0000000075D01000-0x0000000075D03000-memory.dmp

          Filesize

          8KB

        • memory/752-84-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/884-69-0x00000000035B0000-0x0000000004586000-memory.dmp

          Filesize

          15.8MB

        • memory/1988-71-0x0000000000400000-0x00000000013D6000-memory.dmp

          Filesize

          15.8MB

        • memory/1988-80-0x0000000000400000-0x00000000013D6000-memory.dmp

          Filesize

          15.8MB

        • memory/1988-77-0x0000000010000000-0x000000001001B000-memory.dmp

          Filesize

          108KB

        • memory/1988-83-0x0000000000400000-0x00000000013D6000-memory.dmp

          Filesize

          15.8MB

        • memory/1988-73-0x0000000000400000-0x00000000013D6000-memory.dmp

          Filesize

          15.8MB

        • memory/1988-70-0x0000000000400000-0x00000000013D6000-memory.dmp

          Filesize

          15.8MB