Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10/05/2024, 21:27

General

  • Target
    $R0/Uninstall Bearly.exe
  • Size 196KB
  • Sample240510-1arsfaae8v
  • SHA256 84f9bbb0a946d840d825f379e7d5bfd1f58b2999b3a411666a7e39d727bca646
  • MD5 SHA1 SHA512 SSDEEP
Score
4/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Bearly.exe
    "C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Bearly.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3164
    • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq Bearly.exe" | %SYSTEMROOT%\System32\find.exe "Bearly.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5104
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq Bearly.exe"
          4⤵
          • Enumerates processes with tasklist
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4448
        • C:\Windows\SysWOW64\find.exe
          C:\Windows\System32\find.exe "Bearly.exe"
          4⤵
            PID:4344

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          StdUtils.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsq55E1.tmp\StdUtils.dll
          • Size 100KB
          • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsq55E1.tmp\System.dll
          • Size 12KB
          • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
          • MD5 SHA1 SHA512 SSDEEP

          WinShell.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsq55E1.tmp\WinShell.dll
          • Size 3KB
          • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
          • MD5 SHA1 SHA512

          nsExec.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsq55E1.tmp\nsExec.dll
          • Size 6KB
          • SHA256 5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
          • MD5 SHA1 SHA512 SSDEEP

          Un_A.exe

          • Path C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
          • Size 196KB
          • SHA256 84f9bbb0a946d840d825f379e7d5bfd1f58b2999b3a411666a7e39d727bca646
          • MD5 SHA1 SHA512 SSDEEP