Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    14-05-2024 09:22

General

  • Target

    de5f8b987e059597e123828acfd03240724f64414d4b8dc58781801e55369ff6.exe

  • Size

    4.4MB

  • MD5

    94d08733b55fdb08c511ad929d2ddf03

  • SHA1

    092750754bb8d0a579ac78a6c8c1ae8650ce913a

  • SHA256

    de5f8b987e059597e123828acfd03240724f64414d4b8dc58781801e55369ff6

  • SHA512

    f35db41d2fabe84df43faca46f73c82f244247f3e4949b66590ee9da5c3ffc071ee2c7761a74a1b882b8d27705cc9999c63ffae8965c1491888fc5fd69c4c590

  • SSDEEP

    98304:W8JhJymQu/mOU9ItFnVLsrzcuU3103isHZv9+:amT89IHVLsrlUC3i6v9+

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de5f8b987e059597e123828acfd03240724f64414d4b8dc58781801e55369ff6.exe
    "C:\Users\Admin\AppData\Local\Temp\de5f8b987e059597e123828acfd03240724f64414d4b8dc58781801e55369ff6.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5060
    • C:\Users\Admin\AppData\Local\Temp\is-0489J.tmp\de5f8b987e059597e123828acfd03240724f64414d4b8dc58781801e55369ff6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-0489J.tmp\de5f8b987e059597e123828acfd03240724f64414d4b8dc58781801e55369ff6.tmp" /SL5="$4023E,4380096,54272,C:\Users\Admin\AppData\Local\Temp\de5f8b987e059597e123828acfd03240724f64414d4b8dc58781801e55369ff6.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3336
      • C:\Users\Admin\AppData\Local\Radio Buster\radiobuster.exe
        "C:\Users\Admin\AppData\Local\Radio Buster\radiobuster.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1812
      • C:\Users\Admin\AppData\Local\Radio Buster\radiobuster.exe
        "C:\Users\Admin\AppData\Local\Radio Buster\radiobuster.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Radio Buster\libeay32.dll

    Filesize

    1.9MB

    MD5

    876a839023b8f962a72d295da7495734

    SHA1

    62a7728679bc18784b1fbf1d013f7cece18cbec9

    SHA256

    a757d773da406411fb977761f6e56f016d48d224aedaf3d875ed4d4a9ede6158

    SHA512

    e1b23a2f5ec0100ff874ca075bbd0f90e9065a90fec66861f99df603d7aaa9db8e8ec326710fdc11ad41d01befe4ea3077136127acf613614d0d12ff23bec6c1

  • C:\Users\Admin\AppData\Local\Radio Buster\radiobuster.exe

    Filesize

    2.1MB

    MD5

    c13163cb73c48c40bfb6fa0d8951a16b

    SHA1

    6e26781988a0df52de9e905289877e9028185bf7

    SHA256

    38783d543c5cac3a363919c23be83889b0c2f50a56abe8ea36c8b7fd2a6fe194

    SHA512

    2ba3703d86f6ad43a9dcb92b755b7c908f90856822879be99595d07613354b8b67340c1df6369278fa65765a95f4ba6d93f57f73ae2de78c6b6930c41a86be9c

  • C:\Users\Admin\AppData\Local\Temp\is-0489J.tmp\de5f8b987e059597e123828acfd03240724f64414d4b8dc58781801e55369ff6.tmp

    Filesize

    696KB

    MD5

    9506bec9e52f7358d3507abfef3dff76

    SHA1

    5cadad1620d283cafacc32714d4e8136499ec0e2

    SHA256

    0d8eb5f7cd825e50d48fe4e4d8b69f51dba9d55f0be9ed8732b727659ec417e8

    SHA512

    99638c72a1d6a48a6f2111caefe6f65e3ecb763bb459b101c3322ae0d621469c44d266bb1a7d6d52c52ad06a434d91e6eb58795d6e91094ccad8aa0bb1903142

  • C:\Users\Admin\AppData\Local\Temp\is-SP0GP.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/1560-74-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-77-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-115-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-112-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-109-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-106-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-68-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-103-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-100-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-71-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-97-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-94-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-80-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-83-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-85-0x0000000000A40000-0x0000000000AE2000-memory.dmp

    Filesize

    648KB

  • memory/1560-89-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1812-60-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1812-63-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/1812-59-0x0000000000400000-0x0000000000617000-memory.dmp

    Filesize

    2.1MB

  • memory/3336-16-0x0000000000400000-0x00000000004BE000-memory.dmp

    Filesize

    760KB

  • memory/3336-70-0x0000000000400000-0x00000000004BE000-memory.dmp

    Filesize

    760KB

  • memory/5060-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5060-69-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5060-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB