Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-09-2024 07:05

General

  • Target

    49a530d2755b919dee5bdd26d931925c.exe

  • Size

    272KB

  • MD5

    49a530d2755b919dee5bdd26d931925c

  • SHA1

    59440163bfd8c6af7e61a0b19f86a91e99c01d98

  • SHA256

    37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa

  • SHA512

    79c89aac0dc0f40fde34e7228554982312ab10b04cfcedead34ace4a9c366aa027251a60c73a1815c3770fd87b2bc49b5c89ecfcc3e7815222bba8bd1a3ceed7

  • SSDEEP

    6144:+DfD5BQnup57iPyrbaM33dAq6EuA72Igq:+7Qnu+yrbaMD6EuA7

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\49a530d2755b919dee5bdd26d931925c.exe
    "C:\Users\Admin\AppData\Local\Temp\49a530d2755b919dee5bdd26d931925c.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4372
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 748
      2⤵
      • Program crash
      PID:3288
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 780
      2⤵
      • Program crash
      PID:2296
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 772
      2⤵
      • Program crash
      PID:5008
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 816
      2⤵
      • Program crash
      PID:3432
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 904
      2⤵
      • Program crash
      PID:708
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 1000
      2⤵
      • Program crash
      PID:3684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 1128
      2⤵
      • Program crash
      PID:1644
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 1332
      2⤵
      • Program crash
      PID:1388
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "49a530d2755b919dee5bdd26d931925c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\49a530d2755b919dee5bdd26d931925c.exe" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3504
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "49a530d2755b919dee5bdd26d931925c.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1776
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 1296
      2⤵
      • Program crash
      PID:4444
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4372 -ip 4372
    1⤵
      PID:3980
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4372 -ip 4372
      1⤵
        PID:3520
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4372 -ip 4372
        1⤵
          PID:2784
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4372 -ip 4372
          1⤵
            PID:1356
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4372 -ip 4372
            1⤵
              PID:4784
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4372 -ip 4372
              1⤵
                PID:2204
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4372 -ip 4372
                1⤵
                  PID:2260
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4372 -ip 4372
                  1⤵
                    PID:1100
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4372 -ip 4372
                    1⤵
                      PID:1200

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YYI0S376\download[1].htm

                      Filesize

                      1B

                      MD5

                      cfcd208495d565ef66e7dff9f98764da

                      SHA1

                      b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

                      SHA256

                      5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

                      SHA512

                      31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

                    • memory/4372-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

                      Filesize

                      1024KB

                    • memory/4372-2-0x00000000005E0000-0x000000000060D000-memory.dmp

                      Filesize

                      180KB

                    • memory/4372-3-0x0000000000400000-0x000000000042F000-memory.dmp

                      Filesize

                      188KB

                    • memory/4372-8-0x00000000004E0000-0x00000000005E0000-memory.dmp

                      Filesize

                      1024KB

                    • memory/4372-9-0x0000000000400000-0x000000000044B000-memory.dmp

                      Filesize

                      300KB

                    • memory/4372-11-0x00000000005E0000-0x000000000060D000-memory.dmp

                      Filesize

                      180KB

                    • memory/4372-12-0x0000000000400000-0x000000000042F000-memory.dmp

                      Filesize

                      188KB

                    • memory/4372-21-0x0000000000400000-0x000000000044B000-memory.dmp

                      Filesize

                      300KB

                    • memory/4372-22-0x0000000000400000-0x000000000042F000-memory.dmp

                      Filesize

                      188KB