Analysis

  • max time kernel
    92s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-09-2024 23:16

General

  • Target

    a3847825c493b4b76addda43b65194253f4e66a0eb3e9912514afa7b4e4aabae.exe

  • Size

    423KB

  • MD5

    c7a3775cbc45c5fb06468404eba0bf61

  • SHA1

    38df1fe93c42515051b6e82c1e3c88d64015c969

  • SHA256

    a3847825c493b4b76addda43b65194253f4e66a0eb3e9912514afa7b4e4aabae

  • SHA512

    d460e27ee6775353ee291811a8428f07b5b7e15b34033c42ae3b52797fe4d32c3a44ca1e6c368ec5748834e2be46475ef73154b87c42484bfc1b87999c8d64bd

  • SSDEEP

    6144:EstNUDvKsWwGx8wDBl006djfP/+NqZNFQFmPEREv:EONUDvDWwG/lwjWi2mP

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

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 9 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\a3847825c493b4b76addda43b65194253f4e66a0eb3e9912514afa7b4e4aabae.exe
    "C:\Users\Admin\AppData\Local\Temp\a3847825c493b4b76addda43b65194253f4e66a0eb3e9912514afa7b4e4aabae.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3996
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 456
      2⤵
      • Program crash
      PID:3124
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 764
      2⤵
      • Program crash
      PID:1776
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 772
      2⤵
      • Program crash
      PID:1740
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 816
      2⤵
      • Program crash
      PID:4932
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 872
      2⤵
      • Program crash
      PID:536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 928
      2⤵
      • Program crash
      PID:3504
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 1004
      2⤵
      • Program crash
      PID:2080
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 1560
      2⤵
      • Program crash
      PID:736
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "a3847825c493b4b76addda43b65194253f4e66a0eb3e9912514afa7b4e4aabae.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a3847825c493b4b76addda43b65194253f4e66a0eb3e9912514afa7b4e4aabae.exe" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3608
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "a3847825c493b4b76addda43b65194253f4e66a0eb3e9912514afa7b4e4aabae.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2604
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 492
      2⤵
      • Program crash
      PID:3008
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3996 -ip 3996
    1⤵
      PID:3092
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3996 -ip 3996
      1⤵
        PID:4204
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3996 -ip 3996
        1⤵
          PID:1628
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3996 -ip 3996
          1⤵
            PID:3488
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3996 -ip 3996
            1⤵
              PID:4160
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3996 -ip 3996
              1⤵
                PID:4460
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3996 -ip 3996
                1⤵
                  PID:2916
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3996 -ip 3996
                  1⤵
                    PID:4928
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3996 -ip 3996
                    1⤵
                      PID:4152

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5JGBC19U\download[1].htm

                      Filesize

                      1B

                      MD5

                      cfcd208495d565ef66e7dff9f98764da

                      SHA1

                      b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

                      SHA256

                      5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

                      SHA512

                      31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

                    • memory/3996-1-0x0000000000980000-0x0000000000A80000-memory.dmp

                      Filesize

                      1024KB

                    • memory/3996-2-0x0000000002330000-0x000000000236C000-memory.dmp

                      Filesize

                      240KB

                    • memory/3996-3-0x0000000000400000-0x000000000043F000-memory.dmp

                      Filesize

                      252KB

                    • memory/3996-8-0x0000000010000000-0x000000001001C000-memory.dmp

                      Filesize

                      112KB

                    • memory/3996-13-0x0000000000980000-0x0000000000A80000-memory.dmp

                      Filesize

                      1024KB

                    • memory/3996-16-0x0000000002330000-0x000000000236C000-memory.dmp

                      Filesize

                      240KB

                    • memory/3996-15-0x0000000000400000-0x00000000005FE000-memory.dmp

                      Filesize

                      2.0MB

                    • memory/3996-17-0x0000000000400000-0x000000000043F000-memory.dmp

                      Filesize

                      252KB

                    • memory/3996-27-0x0000000000400000-0x00000000005FE000-memory.dmp

                      Filesize

                      2.0MB

                    • memory/3996-36-0x0000000000400000-0x000000000043F000-memory.dmp

                      Filesize

                      252KB

                    • memory/3996-35-0x0000000000400000-0x00000000005FE000-memory.dmp

                      Filesize

                      2.0MB