Analysis

  • max time kernel
    292s
  • max time network
    280s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 22:52

General

  • Target

    490a74783ce10188e11464a95262df27a825bf9804b63c47d84a0481225dcd0a.exe

  • Size

    4.8MB

  • MD5

    c77c9ce1b1c514926abd59c2fc7a421d

  • SHA1

    c995eff569ac277b7be43fb616d1c85ff36de490

  • SHA256

    490a74783ce10188e11464a95262df27a825bf9804b63c47d84a0481225dcd0a

  • SHA512

    8eac79e0d35dd1dbc159fc34fb0730d083938a9097158094584dbfdb044dd93b5efa42a09c5d68ad88f5b56075649fa5e86dcd3d6f2fda63c0766ad91120fa26

  • SSDEEP

    98304:mhM/RqaAe88aJA+FSb5Bff2BQC1jIskYoDEB8bHkE0Aqpz4NDnGQ6:B/URe8VJ9FSiB+5vbH30okV

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\490a74783ce10188e11464a95262df27a825bf9804b63c47d84a0481225dcd0a.exe
    "C:\Users\Admin\AppData\Local\Temp\490a74783ce10188e11464a95262df27a825bf9804b63c47d84a0481225dcd0a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Users\Admin\AppData\Local\Temp\is-U9760.tmp\490a74783ce10188e11464a95262df27a825bf9804b63c47d84a0481225dcd0a.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-U9760.tmp\490a74783ce10188e11464a95262df27a825bf9804b63c47d84a0481225dcd0a.tmp" /SL5="$400EA,4738570,54272,C:\Users\Admin\AppData\Local\Temp\490a74783ce10188e11464a95262df27a825bf9804b63c47d84a0481225dcd0a.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2372
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\5K Player\5kplayer.exe

    Filesize

    3.0MB

    MD5

    886064c615d75a51c947f1211bffdb03

    SHA1

    fc0424a40cf2c962d843fd9db8b63476a007463e

    SHA256

    c59038565a8a61cee75433a5ef174437e97f4e885b62cf5e2f8a83fbb1efddd8

    SHA512

    e40dd78a1ba88c4361482196bad728567472f62a992990a3026c8699a00a84827bea5cdd6a9348afa6c683877048a07532c1beadafd7319f831bc913b9884259

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

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-U9760.tmp\490a74783ce10188e11464a95262df27a825bf9804b63c47d84a0481225dcd0a.tmp

    Filesize

    680KB

    MD5

    4dc224bb697f1ac21a2615f277db675c

    SHA1

    62308fb4f79b9ccd60a1a4d13c0506fbb7795688

    SHA256

    c318aaf77ffb1475e65d9670d31972602e97727906315bbb012893a40252b6b6

    SHA512

    82373f8d81729e8fa24a881f4af93c892a371f4de6ac506e61c534dd6b8b796d9ab46d9ab81e3e81a9997c7d27d8b409d4a377ed8b0606f7d9192a4e372b3b8e

  • memory/2372-65-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2372-66-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2372-69-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2604-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2604-76-0x00000000040D0000-0x00000000043D6000-memory.dmp

    Filesize

    3.0MB

  • memory/2604-17-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2604-64-0x00000000040D0000-0x00000000043D6000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-79-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-98-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-71-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-75-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-135-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-132-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-82-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-85-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-88-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-91-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-92-0x00000000022A0000-0x0000000002342000-memory.dmp

    Filesize

    648KB

  • memory/2956-129-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-101-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-104-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-107-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-110-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-113-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-116-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-119-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-122-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2956-126-0x0000000000400000-0x0000000000706000-memory.dmp

    Filesize

    3.0MB

  • memory/2964-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2964-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2964-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB