Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2023 15:42

General

  • Target

    de3817047cd8f9bd0e975901574bf1ce.ps1

  • Size

    656KB

  • MD5

    de3817047cd8f9bd0e975901574bf1ce

  • SHA1

    48cdab28075451ee7f9b79bf73fdc1a02b040299

  • SHA256

    1ee7056c422e920c492c6569b69ae100c2dfab5e555ba25303718c9c2d44b015

  • SHA512

    3bede65e715939402b393a856fda7c0d28ae53de9cbf4c2b3ae62332514a01e586a3043ee52ddeaaf4e2adab912ca0e1d8d4d06865f607dc9ccb7a6ec5412075

  • SSDEEP

    12288:EZjw0RJ9u5ILYDxD3fxYehza/tw64g8TVkc5A+:g34Tmr+

Score
10/10

Malware Config

Extracted

Family

oski

C2

103.114.107.28/l15/

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\de3817047cd8f9bd0e975901574bf1ce.ps1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5056
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      #cmd
      2⤵
        PID:664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 664 -s 1160
          3⤵
          • Program crash
          PID:2288
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 664 -ip 664
      1⤵
        PID:4180

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vuzxddo5.gu2.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/664-55-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/664-67-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/664-64-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/664-61-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/664-62-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/664-59-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/5056-45-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-37-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-15-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-58-0x000001D57D070000-0x000001D57D080000-memory.dmp

        Filesize

        64KB

      • memory/5056-13-0x000001D57D050000-0x000001D57D076000-memory.dmp

        Filesize

        152KB

      • memory/5056-12-0x000001D57D070000-0x000001D57D080000-memory.dmp

        Filesize

        64KB

      • memory/5056-60-0x00007FF923190000-0x00007FF923C51000-memory.dmp

        Filesize

        10.8MB

      • memory/5056-54-0x000001D57CB60000-0x000001D57CB61000-memory.dmp

        Filesize

        4KB

      • memory/5056-51-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-49-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-47-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-11-0x000001D57D070000-0x000001D57D080000-memory.dmp

        Filesize

        64KB

      • memory/5056-43-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-41-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-39-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-53-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-35-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-33-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-31-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-29-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-27-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-25-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-23-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-21-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-19-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-17-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-14-0x000001D57D050000-0x000001D57D070000-memory.dmp

        Filesize

        128KB

      • memory/5056-63-0x000001D57D070000-0x000001D57D080000-memory.dmp

        Filesize

        64KB

      • memory/5056-6-0x00007FF923190000-0x00007FF923C51000-memory.dmp

        Filesize

        10.8MB

      • memory/5056-5-0x000001D57F260000-0x000001D57F282000-memory.dmp

        Filesize

        136KB