Analysis

  • max time kernel
    195s
  • max time network
    258s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    05-09-2024 22:35

General

  • Target

    37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.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.

  • 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\37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe
    "C:\Users\Admin\AppData\Local\Temp\37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4384
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 764
      2⤵
      • Program crash
      PID:212
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 776
      2⤵
      • Program crash
      PID:2668
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 844
      2⤵
      • Program crash
      PID:3376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 952
      2⤵
      • Program crash
      PID:3424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1000
      2⤵
      • Program crash
      PID:776
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1116
      2⤵
      • Program crash
      PID:4748
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1128
      2⤵
      • Program crash
      PID:4844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 1460
      2⤵
      • Program crash
      PID:1832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4124
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\V28C7N3J\download[1].htm

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • memory/4384-2-0x00000000005C0000-0x00000000005ED000-memory.dmp

    Filesize

    180KB

  • memory/4384-1-0x0000000000480000-0x0000000000580000-memory.dmp

    Filesize

    1024KB

  • memory/4384-3-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/4384-8-0x0000000000480000-0x0000000000580000-memory.dmp

    Filesize

    1024KB

  • memory/4384-10-0x00000000005C0000-0x00000000005ED000-memory.dmp

    Filesize

    180KB

  • memory/4384-12-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/4384-13-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/4384-22-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/4384-21-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB