Analysis

  • max time kernel
    292s
  • max time network
    281s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 22:58

General

  • Target

    5c134cc0224f813004d1a46aa150477a9a652edcf7090e12ca6e6fad0882c1e8.exe

  • Size

    4.7MB

  • MD5

    738ea807e6b87a7aea13eaf6d1dee44b

  • SHA1

    b318f488dcfa4b2d3c2db7f11cd1a85c0f9112ba

  • SHA256

    5c134cc0224f813004d1a46aa150477a9a652edcf7090e12ca6e6fad0882c1e8

  • SHA512

    8b1bb1db26aa6efd67822b9698456b10f663d394d3021d47d9ce316c3d8f98a7154dc6e6effada252c15703330408e59377c0a21a8af6f624c4f55424fe64f2f

  • SSDEEP

    98304:mKS0Tb3jWO6bNN8BUdE3SZzP/YqPzYdn6i1YHSprqvbrKJOxuaH:1+xN8BTCZjgEi1YHSpSrKCuaH

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Unexpected DNS network traffic destination 2 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5c134cc0224f813004d1a46aa150477a9a652edcf7090e12ca6e6fad0882c1e8.exe
    "C:\Users\Admin\AppData\Local\Temp\5c134cc0224f813004d1a46aa150477a9a652edcf7090e12ca6e6fad0882c1e8.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Users\Admin\AppData\Local\Temp\is-CPH2F.tmp\5c134cc0224f813004d1a46aa150477a9a652edcf7090e12ca6e6fad0882c1e8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CPH2F.tmp\5c134cc0224f813004d1a46aa150477a9a652edcf7090e12ca6e6fad0882c1e8.tmp" /SL5="$400F4,4630986,54272,C:\Users\Admin\AppData\Local\Temp\5c134cc0224f813004d1a46aa150477a9a652edcf7090e12ca6e6fad0882c1e8.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2948
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2468
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Stereo Tool\stereotool.exe

    Filesize

    2.8MB

    MD5

    f4681aff38c10d355e10943c95b42306

    SHA1

    b0a8a89b6283b3e1a9be9c8fc30bd27bf174725f

    SHA256

    6a56186c14984b80eaa1dfcfc667a8e4dfb9a70faa971500b8e325cc0b7159f1

    SHA512

    899f905d1162d3bb9e673c50c86f718086ff6021f1ef147914d0dc216a56168e016ccd7c3796b514fac56d90fb4ac869ca06bd7e70a4331340df6df561e30fae

  • \Users\Admin\AppData\Local\Temp\is-CPH2F.tmp\5c134cc0224f813004d1a46aa150477a9a652edcf7090e12ca6e6fad0882c1e8.tmp

    Filesize

    680KB

    MD5

    40aa2e292ed532def0517646268c58d6

    SHA1

    7da9d902e7e0b7c84b5743298095cb7eda24c6f7

    SHA256

    3a1984939897a71d0a012e359bfabda1248c79397e11bfdb69272a6cee3f8be4

    SHA512

    3e806fbea373906e03346f18da99e7e9557434428383ec4bfe8859d4440b667597f7775d381e421255b75c1a982df375ef7bbb79265cdd932c59b3a11464e649

  • \Users\Admin\AppData\Local\Temp\is-N7KD3.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-N7KD3.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/2372-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2372-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2372-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2436-92-0x0000000002510000-0x00000000025B2000-memory.dmp

    Filesize

    648KB

  • memory/2436-85-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-122-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-119-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-71-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-135-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-132-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-75-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-78-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-129-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-82-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-116-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-88-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-91-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-126-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-98-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-101-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-104-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-107-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-110-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2436-113-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2468-65-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2468-69-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2468-66-0x0000000000400000-0x00000000006D9000-memory.dmp

    Filesize

    2.8MB

  • memory/2948-64-0x0000000003580000-0x0000000003859000-memory.dmp

    Filesize

    2.8MB

  • memory/2948-79-0x0000000003580000-0x0000000003859000-memory.dmp

    Filesize

    2.8MB

  • memory/2948-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2948-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB