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Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/09/2024, 00:59

General

  • Target

    77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe

  • Size

    315KB

  • MD5

    7aeff9892ee049121e8f5a0c6aa60a4d

  • SHA1

    72c9ffc93f18188bce98199beb7d633c5c068760

  • SHA256

    77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45

  • SHA512

    095e43d09b8b9a6c226b395996836dec534f08cb06e8752fa38894b237be04728bd3a16dd39530b9f889e3f08bc20e5fe08e19e73dd0ec4eedc868c1e572bf71

  • SSDEEP

    6144:NR0V8L/ZlOKdgoHRECFE8jqL/QaMylHFTquQTdJLq:NY8L/ZYKd/eL/0QHwhdJLq

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

45.91.200.135

Signatures

  • GCleaner

    GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 10 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe
    "C:\Users\Admin\AppData\Local\Temp\77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 452
      2⤵
      • Program crash
      PID:4984
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 772
      2⤵
      • Program crash
      PID:3616
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 784
      2⤵
      • Program crash
      PID:1680
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 772
      2⤵
      • Program crash
      PID:868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 856
      2⤵
      • Program crash
      PID:4976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 928
      2⤵
      • Program crash
      PID:1784
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 936
      2⤵
      • Program crash
      PID:4556
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 1028
      2⤵
      • Program crash
      PID:4612
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 1560
      2⤵
      • Program crash
      PID:4156
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3376
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2488
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 1680
      2⤵
      • Program crash
      PID:952
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2264 -ip 2264
    1⤵
      PID:2488
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2264 -ip 2264
      1⤵
        PID:3576
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2264 -ip 2264
        1⤵
          PID:2460
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2264 -ip 2264
          1⤵
            PID:1964
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2264 -ip 2264
            1⤵
              PID:4048
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2264 -ip 2264
              1⤵
                PID:3704
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2264 -ip 2264
                1⤵
                  PID:5104
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2264 -ip 2264
                  1⤵
                    PID:4528
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2264 -ip 2264
                    1⤵
                      PID:5000
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2264 -ip 2264
                      1⤵
                        PID:2668

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VNN58CU3\download[1].htm

                        Filesize

                        1B

                        MD5

                        cfcd208495d565ef66e7dff9f98764da

                        SHA1

                        b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

                        SHA256

                        5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

                        SHA512

                        31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

                      • memory/2264-1-0x0000000002E40000-0x0000000002F40000-memory.dmp

                        Filesize

                        1024KB

                      • memory/2264-2-0x0000000002E00000-0x0000000002E3B000-memory.dmp

                        Filesize

                        236KB

                      • memory/2264-3-0x0000000000400000-0x000000000043F000-memory.dmp

                        Filesize

                        252KB

                      • memory/2264-8-0x0000000010000000-0x000000001001C000-memory.dmp

                        Filesize

                        112KB

                      • memory/2264-13-0x0000000002E40000-0x0000000002F40000-memory.dmp

                        Filesize

                        1024KB

                      • memory/2264-14-0x0000000000400000-0x0000000002B6F000-memory.dmp

                        Filesize

                        39.4MB

                      • memory/2264-15-0x0000000002E00000-0x0000000002E3B000-memory.dmp

                        Filesize

                        236KB

                      • memory/2264-17-0x0000000000400000-0x000000000043F000-memory.dmp

                        Filesize

                        252KB

                      • memory/2264-36-0x0000000000400000-0x000000000043F000-memory.dmp

                        Filesize

                        252KB

                      • memory/2264-35-0x0000000000400000-0x0000000002B6F000-memory.dmp

                        Filesize

                        39.4MB