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Analysis

  • max time kernel
    93s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/09/2024, 09:04

General

  • Target

    cfe279a9e9ebf9b9a0bb68a1261aa94d8e8f80e18204d647b0ed853845e1428b.exe

  • Size

    324KB

  • MD5

    de39d38f871167ed066a9d6d3181e2c8

  • SHA1

    c96c26fa89852023fc2d7b39e85c48898444cb90

  • SHA256

    cfe279a9e9ebf9b9a0bb68a1261aa94d8e8f80e18204d647b0ed853845e1428b

  • SHA512

    b7c6e893b2c730efd513cbf37dd2a00f87f67d8001f75ba423f992fb0c2e47f93e9ad35fc677ed1a35f60dffd54923480d9ddbe63ad19c7323bf2fe9cfdad5e1

  • SSDEEP

    6144:rCou1DxtV+m2SpmzpOIfyUz/5KmQ4KfhrShNw0pAY/M0z0Vdh1tQ:S19tVd2SapOIfr/ol4Ahryw0pOVdz

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 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\cfe279a9e9ebf9b9a0bb68a1261aa94d8e8f80e18204d647b0ed853845e1428b.exe
    "C:\Users\Admin\AppData\Local\Temp\cfe279a9e9ebf9b9a0bb68a1261aa94d8e8f80e18204d647b0ed853845e1428b.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3500
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 452
      2⤵
      • Program crash
      PID:1492
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 500
      2⤵
      • Program crash
      PID:1212
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 748
      2⤵
      • Program crash
      PID:3356
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 792
      2⤵
      • Program crash
      PID:440
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 836
      2⤵
      • Program crash
      PID:2068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 844
      2⤵
      • Program crash
      PID:208
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 912
      2⤵
      • Program crash
      PID:4916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 992
      2⤵
      • Program crash
      PID:3932
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 1324
      2⤵
      • Program crash
      PID:3704
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "cfe279a9e9ebf9b9a0bb68a1261aa94d8e8f80e18204d647b0ed853845e1428b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\cfe279a9e9ebf9b9a0bb68a1261aa94d8e8f80e18204d647b0ed853845e1428b.exe" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4436
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "cfe279a9e9ebf9b9a0bb68a1261aa94d8e8f80e18204d647b0ed853845e1428b.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4332
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 3500 -ip 3500
    1⤵
      PID:3576
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3500 -ip 3500
      1⤵
        PID:2084
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3500 -ip 3500
        1⤵
          PID:2012
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3500 -ip 3500
          1⤵
            PID:1060
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3500 -ip 3500
            1⤵
              PID:3188
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3500 -ip 3500
              1⤵
                PID:4708
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3500 -ip 3500
                1⤵
                  PID:2264
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3500 -ip 3500
                  1⤵
                    PID:648
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3500 -ip 3500
                    1⤵
                      PID:2020

                    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/3500-1-0x0000000000540000-0x0000000000640000-memory.dmp

                      Filesize

                      1024KB

                    • memory/3500-2-0x00000000004D0000-0x000000000050B000-memory.dmp

                      Filesize

                      236KB

                    • memory/3500-3-0x0000000000400000-0x000000000043F000-memory.dmp

                      Filesize

                      252KB

                    • memory/3500-8-0x0000000010000000-0x000000001001C000-memory.dmp

                      Filesize

                      112KB

                    • memory/3500-13-0x0000000000540000-0x0000000000640000-memory.dmp

                      Filesize

                      1024KB

                    • memory/3500-14-0x0000000000400000-0x0000000000458000-memory.dmp

                      Filesize

                      352KB

                    • memory/3500-16-0x00000000004D0000-0x000000000050B000-memory.dmp

                      Filesize

                      236KB

                    • memory/3500-17-0x0000000000400000-0x000000000043F000-memory.dmp

                      Filesize

                      252KB

                    • memory/3500-36-0x0000000000400000-0x000000000043F000-memory.dmp

                      Filesize

                      252KB

                    • memory/3500-35-0x0000000000400000-0x0000000000458000-memory.dmp

                      Filesize

                      352KB