Analysis

  • max time kernel
    91s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-12-2023 23:26

General

  • Target

    25190ed01b56665dc1ef07932f781619.ps1

  • Size

    421KB

  • MD5

    25190ed01b56665dc1ef07932f781619

  • SHA1

    76818f1ba247c986f8d1aea6495b052ee39aa11e

  • SHA256

    28022f04aeecc3944f89980f905b714d267dfba617e4b803eb1b1b38fee7371f

  • SHA512

    988a7b4b123d27a38c2e45056267f61404bd3b2d622d8c3552e137830722a3c4f04de6428324f11552a94b1b2a1682f45428ed1d3f2d2ae7d9221441af88a200

  • SSDEEP

    12288:+Zjw0RJ9u5ILYDxD3fxYehza/tw64tL68:q3u

Score
10/10

Malware Config

Extracted

Family

oski

C2

/103.114.107.28/l606/

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\25190ed01b56665dc1ef07932f781619.ps1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4696
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "{path}"
      2⤵
        PID:4720
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "{path}"
        2⤵
          PID:696
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 696 -s 1104
            3⤵
            • Program crash
            PID:4448
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          "{path}"
          2⤵
            PID:444
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 696 -ip 696
          1⤵
            PID:4072

          Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n4zxszog.m0b.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • memory/696-14-0x0000000000400000-0x0000000000438000-memory.dmp

            Filesize

            224KB

          • memory/696-17-0x0000000000400000-0x0000000000438000-memory.dmp

            Filesize

            224KB

          • memory/696-18-0x0000000000400000-0x0000000000438000-memory.dmp

            Filesize

            224KB

          • memory/696-20-0x0000000000400000-0x0000000000438000-memory.dmp

            Filesize

            224KB

          • memory/696-23-0x0000000000400000-0x0000000000438000-memory.dmp

            Filesize

            224KB

          • memory/4696-5-0x00000236CBFB0000-0x00000236CBFD2000-memory.dmp

            Filesize

            136KB

          • memory/4696-10-0x00007FF9862C0000-0x00007FF986D81000-memory.dmp

            Filesize

            10.8MB

          • memory/4696-12-0x00000236CB6C0000-0x00000236CB6D0000-memory.dmp

            Filesize

            64KB

          • memory/4696-11-0x00000236CB6C0000-0x00000236CB6D0000-memory.dmp

            Filesize

            64KB

          • memory/4696-13-0x00000236CBFA0000-0x00000236CBFAA000-memory.dmp

            Filesize

            40KB

          • memory/4696-19-0x00007FF9862C0000-0x00007FF986D81000-memory.dmp

            Filesize

            10.8MB