Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240704-en
  • resource tags

    arch:x64arch:x86image:win11-20240704-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08-07-2024 10:46

General

  • Target

    Selvretfrdig.exe

  • Size

    389KB

  • MD5

    016b555049364f09f3d2f58fe88c28f7

  • SHA1

    48893b18559daa8392ff371117f799113c81c90d

  • SHA256

    f8aa18d4254a618c058dda0a2be332707f305795953a26402e7b5f791b778bf0

  • SHA512

    15ce409cdb879c30d14d6211127fa0d8f7cc22611b3c20906f70ef5da059dd769953441e4cd466b2b6c3f7a6124786f0c6f981abc75812f2a99d452bd1d3d586

  • SSDEEP

    6144:9M23AbpBWzrsx8NjZc+2xFLHUxxf5WMG8FtObeYv5JuvWLWC32jTMA3hJCQNUs:vGpQzQ8cLxFQtdG8Ftqvzh9pKJfNb

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Selvretfrdig.exe
    "C:\Users\Admin\AppData\Local\Temp\Selvretfrdig.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle hidden "$Forsvrgelsen=Get-Content 'C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Sperlingkasserne.Gla';$Decubitus=$Forsvrgelsen.SubString(65564,3);.$Decubitus($Forsvrgelsen)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4100
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 2584
        3⤵
        • Program crash
        PID:2844
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4100 -ip 4100
    1⤵
      PID:1804

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5jbamz31.r1n.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Sperlingkasserne.Gla

      Filesize

      64KB

      MD5

      c9035c38abb2f8b3e1255a2320926c2b

      SHA1

      29ee2663a1f9e8c907791957558b79dff166413c

      SHA256

      92eca1cfe870c436907085d7d2d85ea69c5596d456a98224937d631cfaf4adc6

      SHA512

      9b1f7655ec40cd92a873547bf7b8b03de824ee53bf2cbd516ec245e3cbc385e6659ce61ce5c94c1460877d697a42fbf1ee65db3abed1474c7aeec233208e89f7

    • memory/4100-13-0x0000000073CD0000-0x0000000074481000-memory.dmp

      Filesize

      7.7MB

    • memory/4100-27-0x00000000069B0000-0x00000000069FC000-memory.dmp

      Filesize

      304KB

    • memory/4100-9-0x0000000073CDE000-0x0000000073CDF000-memory.dmp

      Filesize

      4KB

    • memory/4100-14-0x00000000059F0000-0x0000000005A12000-memory.dmp

      Filesize

      136KB

    • memory/4100-15-0x00000000061F0000-0x0000000006256000-memory.dmp

      Filesize

      408KB

    • memory/4100-16-0x0000000006260000-0x00000000062C6000-memory.dmp

      Filesize

      408KB

    • memory/4100-12-0x0000000005A50000-0x000000000607A000-memory.dmp

      Filesize

      6.2MB

    • memory/4100-25-0x00000000063B0000-0x0000000006707000-memory.dmp

      Filesize

      3.3MB

    • memory/4100-26-0x00000000067A0000-0x00000000067BE000-memory.dmp

      Filesize

      120KB

    • memory/4100-11-0x0000000073CD0000-0x0000000074481000-memory.dmp

      Filesize

      7.7MB

    • memory/4100-28-0x0000000007960000-0x00000000079F6000-memory.dmp

      Filesize

      600KB

    • memory/4100-29-0x0000000006CE0000-0x0000000006CFA000-memory.dmp

      Filesize

      104KB

    • memory/4100-30-0x0000000006D30000-0x0000000006D52000-memory.dmp

      Filesize

      136KB

    • memory/4100-31-0x0000000007FB0000-0x0000000008556000-memory.dmp

      Filesize

      5.6MB

    • memory/4100-10-0x0000000002F80000-0x0000000002FB6000-memory.dmp

      Filesize

      216KB

    • memory/4100-33-0x0000000008BE0000-0x000000000925A000-memory.dmp

      Filesize

      6.5MB

    • memory/4100-35-0x0000000073CD0000-0x0000000074481000-memory.dmp

      Filesize

      7.7MB