Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08/11/2024, 15:04

General

  • Target
    Mr4X5srRQR20TfuVZShfsrAN.exe
  • Size 321KB
  • Sample241108-sfkmbavblm
  • SHA256 6aef62b3b8890bc22dd99f9b0d48247ae52c69e7ad9e384332658e73c725e40e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • gcleaner

C2
  • 194.145.227.161

Signatures

  • GCleaner

    GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

  • Gcleaner family
  • OnlyLogger

    A tiny loader that uses IPLogger to get its payload.

  • Onlylogger family
  • OnlyLogger payload 4 IoCs
  • Deletes itself 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Mr4X5srRQR20TfuVZShfsrAN.exe
    "C:\Users\Admin\AppData\Local\Temp\Mr4X5srRQR20TfuVZShfsrAN.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:880
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{Rn7v-QqBqY-qXC8-9q0cA}\41999481786.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2764
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{Rn7v-QqBqY-qXC8-9q0cA}\76269284269.exe" /mix
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2732
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\{Rn7v-QqBqY-qXC8-9q0cA}\45867871440.exe" /mix
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2912
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "Mr4X5srRQR20TfuVZShfsrAN.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\Mr4X5srRQR20TfuVZShfsrAN.exe" & exit
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1648
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "Mr4X5srRQR20TfuVZShfsrAN.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2564

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        76269284269.exe

        • Path C:\Users\Admin\AppData\Local\Temp\{Rn7v-QqBqY-qXC8-9q0cA}\76269284269.exe
        • Size 277B
        • SHA256 2e6cd9433e66a9ebde268bc6949d4660de441790bd39ffc9cb0f4caaeb44320f
        • MD5 SHA1 SHA512

        memory/880-1-0x0000000002440000-0x0000000002540000-memory.dmp

        memory/880-2-0x0000000000400000-0x0000000000432000-memory.dmp

        memory/880-3-0x0000000000400000-0x00000000023BB000-memory.dmp

        memory/880-22-0x0000000002440000-0x0000000002540000-memory.dmp

        memory/880-21-0x0000000000400000-0x0000000000432000-memory.dmp

        memory/880-20-0x0000000000400000-0x00000000023BB000-memory.dmp