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Analysis

  • max time kernel
    91s
  • max time network
    99s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10/09/2024, 15:41

General

  • Target

    993f3fb15e0541e69324fb91c57c7a56faef6aed850a351aa06ea158a8d16bcf.exe

  • Size

    284KB

  • MD5

    da36342aa76df48b676a5a3787c53c15

  • SHA1

    3595579569d10f9c1896ec8b0bb695087c137599

  • SHA256

    993f3fb15e0541e69324fb91c57c7a56faef6aed850a351aa06ea158a8d16bcf

  • SHA512

    a0a47c16a37dde64a33e1eb9945401aca61dbac7cb5e2c29edcfbc685e4b1bdf696b7e06460b037ad74e6b11d66fecd5f6dadb222b2cf6b1f3e7dc66452061e2

  • SSDEEP

    6144:5Lx6g2oXwn78/bfkWO/OpvtknVZoVlfGmuQTdJfJZ:Vx32oM78gWOslknroP+mhdJRZ

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.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 8 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\993f3fb15e0541e69324fb91c57c7a56faef6aed850a351aa06ea158a8d16bcf.exe
    "C:\Users\Admin\AppData\Local\Temp\993f3fb15e0541e69324fb91c57c7a56faef6aed850a351aa06ea158a8d16bcf.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 772
      2⤵
      • Program crash
      PID:3480
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 812
      2⤵
      • Program crash
      PID:1852
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 772
      2⤵
      • Program crash
      PID:1952
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 844
      2⤵
      • Program crash
      PID:432
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 952
      2⤵
      • Program crash
      PID:4376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 1080
      2⤵
      • Program crash
      PID:412
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 1428
      2⤵
      • Program crash
      PID:4036
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "993f3fb15e0541e69324fb91c57c7a56faef6aed850a351aa06ea158a8d16bcf.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\993f3fb15e0541e69324fb91c57c7a56faef6aed850a351aa06ea158a8d16bcf.exe" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "993f3fb15e0541e69324fb91c57c7a56faef6aed850a351aa06ea158a8d16bcf.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:660
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 1496
      2⤵
      • Program crash
      PID:4948
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 1976 -ip 1976
    1⤵
      PID:4576
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 1976 -ip 1976
      1⤵
        PID:1040
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1976 -ip 1976
        1⤵
          PID:1556
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1976 -ip 1976
          1⤵
            PID:3552
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 1976 -ip 1976
            1⤵
              PID:2136
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1976 -ip 1976
              1⤵
                PID:4568
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1976 -ip 1976
                1⤵
                  PID:4540
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1976 -ip 1976
                  1⤵
                    PID:3572

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3EO0KN0W\download[1].htm

                    Filesize

                    1B

                    MD5

                    cfcd208495d565ef66e7dff9f98764da

                    SHA1

                    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

                    SHA256

                    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

                    SHA512

                    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

                  • memory/1976-1-0x0000000002D80000-0x0000000002E80000-memory.dmp

                    Filesize

                    1024KB

                  • memory/1976-2-0x0000000002D50000-0x0000000002D7D000-memory.dmp

                    Filesize

                    180KB

                  • memory/1976-3-0x0000000000400000-0x000000000042F000-memory.dmp

                    Filesize

                    188KB

                  • memory/1976-8-0x0000000002D80000-0x0000000002E80000-memory.dmp

                    Filesize

                    1024KB

                  • memory/1976-9-0x0000000000400000-0x0000000002B67000-memory.dmp

                    Filesize

                    39.4MB

                  • memory/1976-11-0x0000000002D50000-0x0000000002D7D000-memory.dmp

                    Filesize

                    180KB

                  • memory/1976-12-0x0000000000400000-0x000000000042F000-memory.dmp

                    Filesize

                    188KB

                  • memory/1976-22-0x0000000000400000-0x000000000042F000-memory.dmp

                    Filesize

                    188KB

                  • memory/1976-21-0x0000000000400000-0x0000000002B67000-memory.dmp

                    Filesize

                    39.4MB