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Analysis

  • max time kernel
    94s
  • 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
    12/09/2024, 07:55

General

  • Target

    a1b85d8af74805b06c0738f0d891aab6bb9fd75a3d9c87d1b0f23af1463fb179.exe

  • Size

    280KB

  • MD5

    cb0c7fbaf692a97c222ff428aac49c56

  • SHA1

    c760155600a9b403cb5a7084d3191ef0ed28a22a

  • SHA256

    a1b85d8af74805b06c0738f0d891aab6bb9fd75a3d9c87d1b0f23af1463fb179

  • SHA512

    bc201aa4b14bd0d0aee3fe32cedf6246ed8554aa43b42dd54aaec10fca3a9e73ee70507b58742bfc855a8c5e5a1fa7640798bfcd794859ebb785edae597dd27e

  • SSDEEP

    6144:xwXs4RYR0t+Xiz7D7A7+JB8v+wPro/X0:xwVRsSPB8mwPro

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.

  • 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\a1b85d8af74805b06c0738f0d891aab6bb9fd75a3d9c87d1b0f23af1463fb179.exe
    "C:\Users\Admin\AppData\Local\Temp\a1b85d8af74805b06c0738f0d891aab6bb9fd75a3d9c87d1b0f23af1463fb179.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 748
      2⤵
      • Program crash
      PID:4656
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 756
      2⤵
      • Program crash
      PID:928
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 776
      2⤵
      • Program crash
      PID:2752
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 820
      2⤵
      • Program crash
      PID:4228
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 904
      2⤵
      • Program crash
      PID:2028
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 980
      2⤵
      • Program crash
      PID:4588
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 1016
      2⤵
      • Program crash
      PID:4564
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 1496
      2⤵
      • Program crash
      PID:800
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "a1b85d8af74805b06c0738f0d891aab6bb9fd75a3d9c87d1b0f23af1463fb179.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a1b85d8af74805b06c0738f0d891aab6bb9fd75a3d9c87d1b0f23af1463fb179.exe" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1084
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "a1b85d8af74805b06c0738f0d891aab6bb9fd75a3d9c87d1b0f23af1463fb179.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 1552
      2⤵
      • Program crash
      PID:3528
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1360 -ip 1360
    1⤵
      PID:1052
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1360 -ip 1360
      1⤵
        PID:3616
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1360 -ip 1360
        1⤵
          PID:4660
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1360 -ip 1360
          1⤵
            PID:4704
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1360 -ip 1360
            1⤵
              PID:3304
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1360 -ip 1360
              1⤵
                PID:4784
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1360 -ip 1360
                1⤵
                  PID:2592
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1360 -ip 1360
                  1⤵
                    PID:3700
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 1360 -ip 1360
                    1⤵
                      PID:1712

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3GJVVK7B\download[1].htm

                      Filesize

                      1B

                      MD5

                      cfcd208495d565ef66e7dff9f98764da

                      SHA1

                      b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

                      SHA256

                      5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

                      SHA512

                      31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

                    • memory/1360-1-0x0000000002950000-0x0000000002A50000-memory.dmp

                      Filesize

                      1024KB

                    • memory/1360-2-0x00000000044F0000-0x000000000451D000-memory.dmp

                      Filesize

                      180KB

                    • memory/1360-3-0x0000000000400000-0x000000000042F000-memory.dmp

                      Filesize

                      188KB

                    • memory/1360-8-0x0000000002950000-0x0000000002A50000-memory.dmp

                      Filesize

                      1024KB

                    • memory/1360-10-0x00000000044F0000-0x000000000451D000-memory.dmp

                      Filesize

                      180KB

                    • memory/1360-12-0x0000000000400000-0x000000000042F000-memory.dmp

                      Filesize

                      188KB

                    • memory/1360-11-0x0000000000400000-0x0000000002796000-memory.dmp

                      Filesize

                      35.6MB

                    • memory/1360-22-0x0000000000400000-0x000000000042F000-memory.dmp

                      Filesize

                      188KB

                    • memory/1360-21-0x0000000000400000-0x0000000002796000-memory.dmp

                      Filesize

                      35.6MB