Analysis

  • max time kernel
    19s
  • max time network
    21s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-08-2024 19:06

General

  • Target

    Kulo Proxy.exe

  • Size

    5.5MB

  • MD5

    54e12440f6cf0297e01f7b163ff7b63a

  • SHA1

    74bf40882aefe4cd4580bd075c714f8679ad8652

  • SHA256

    b431ed16767cb8da4350cff864c6eb236b263768199c7b50518b8dda07f8fd35

  • SHA512

    beb92db97661da1709139f46baef4ee97c3950ae345923048bdeaafadd2703a9406f43a12245f8cfce07e88ea29d1e55610c37ca32d6c7185b375aea5fcfb064

  • SSDEEP

    98304:KrIdSnq6IWdXnvYz8t3uYFdgzWk64nTAtS:GMWAc+YFdCXTd

Malware Config

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Detects Eternity stealer 1 IoCs
  • Eternity

    Eternity Project is a malware kit offering an info stealer, clipper, worm, coin miner, ransomware, and DDoS bot.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Disables Task Manager via registry modification
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Kulo Proxy.exe
    "C:\Users\Admin\AppData\Local\Temp\Kulo Proxy.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Checks computer location settings
    • Drops startup file
    • Windows security modification
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:664
    • C:\Users\Admin\AppData\Local\Temp\tx1jtsrt.0wu\Kulo Proxy.exe
      "C:\Users\Admin\AppData\Local\Temp\tx1jtsrt.0wu\Kulo Proxy.exe"
      2⤵
      • Executes dropped EXE
      PID:380
    • C:\Users\Admin\AppData\Local\Temp\dcd.exe
      "C:\Users\Admin\AppData\Local\Temp\dcd.exe" -path=""
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4056
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3i24vg4n.uvs.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\dcd.exe

    Filesize

    227KB

    MD5

    b5ac46e446cead89892628f30a253a06

    SHA1

    f4ad1044a7f77a1b02155c3a355a1bb4177076ca

    SHA256

    def7afcb65126c4b04a7cbf08c693f357a707aa99858cac09a8d5e65f3177669

    SHA512

    bcabbac6f75c1d41364406db457c62f5135a78f763f6db08c1626f485c64db4d9ba3b3c8bc0b5508d917e445fd220ffa66ebc35221bd06560446c109818e8e87

  • C:\Users\Admin\AppData\Local\Temp\tx1jtsrt.0wu\Kulo Proxy.exe

    Filesize

    2.3MB

    MD5

    f7aaffa9a85cd5b2b147b1c2a117dfd9

    SHA1

    336ca5e628cf57ba5c4701918ada06bf908d3753

    SHA256

    4f3728da388cc647f39d12c330ff81b4068d7c908668d56d6e6f0d87631085d9

    SHA512

    5368be56ced8d1abca50848430755e927cca92a726ded5d609f4fba2cbd93946b1e4c68b235f0e612bd52a025643fcfab3309afbce5ec1e39f3ba5e7e09c564c

  • memory/612-36-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB

  • memory/612-33-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB

  • memory/612-30-0x00000287E6280000-0x00000287E62A2000-memory.dmp

    Filesize

    136KB

  • memory/612-32-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB

  • memory/612-31-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB

  • memory/664-4-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB

  • memory/664-15-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB

  • memory/664-12-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB

  • memory/664-7-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB

  • memory/664-6-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB

  • memory/664-0-0x00007FF9D8953000-0x00007FF9D8955000-memory.dmp

    Filesize

    8KB

  • memory/664-3-0x000000001BFC0000-0x000000001C246000-memory.dmp

    Filesize

    2.5MB

  • memory/664-2-0x00000000031F0000-0x0000000003240000-memory.dmp

    Filesize

    320KB

  • memory/664-1-0x0000000000B10000-0x0000000001094000-memory.dmp

    Filesize

    5.5MB

  • memory/664-39-0x00007FF9D8950000-0x00007FF9D9411000-memory.dmp

    Filesize

    10.8MB