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Analysis

  • max time kernel
    300s
  • max time network
    262s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    27/06/2024, 22:46

General

  • Target

    3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe

  • Size

    5.0MB

  • MD5

    8c0ab37ceff70be75ec0efbfb8a9d2a2

  • SHA1

    ebb0d7419a8a406b3306ff44c29394f8f5a2c1a8

  • SHA256

    3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127

  • SHA512

    df1512360a8d45044ba63db13ecf61850028bbd5d715c3914c0c5a7a3120776a92862109a7cba1623631877a279078e19099c41dc513b59604670856682f1861

  • SSDEEP

    98304:meR6KO/uYOSYPkn06DCf4pdYmSexvQ+42OgWFs+O9cgqfwUQSaRnA:JRqjYkFmKSexvQ+4iGsp9ctfwUQSsnA

Malware Config

Extracted

Family

socks5systemz

C2

ezqehid.ua

http://ezqehid.ua/search/?q=67e28dd8645fa72f495daa1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff614c2e7919c32

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.

  • 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe
    "C:\Users\Admin\AppData\Local\Temp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3620
    • C:\Users\Admin\AppData\Local\Temp\is-LVS0A.tmp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-LVS0A.tmp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp" /SL5="$601E6,4949118,54272,C:\Users\Admin\AppData\Local\Temp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3320
      • C:\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe
        "C:\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe" -i
        3⤵
        • Executes dropped EXE
        PID:5024
      • C:\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe
        "C:\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe

    Filesize

    3.3MB

    MD5

    11b36ef56a8c1ca8a6934ab794d0167f

    SHA1

    23b280023f111df7f0e322350ce5e91e95029aa5

    SHA256

    b4c69209ad61d3a3e840bcbf1d11bbc82b41c28c079c9bb5fbfdca495bc67735

    SHA512

    eb6d6a2ff7d37532ebbc65e7178ceaf5bbae86041a55c27fbdffca4efaeaf3cf4cdf56fe66f384f502508cb9db0efc95a906dc704f3ba3f990e9f02fc57880a0

  • C:\Users\Admin\AppData\Local\Temp\is-LVS0A.tmp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp

    Filesize

    680KB

    MD5

    81bccde22051d526856ba27855373251

    SHA1

    f4c364aece88a2855b0c40e9cdfc8fb2e1406ae8

    SHA256

    bf3447b6b23117cd772099edca2b134e17cefd530aad224d4bcb842525dfbe6b

    SHA512

    8d1bfe370d230fd3b37a87c9124a264654e5e410d8d544a6b577386bcb2762fea27c39e9fc28ea56f89123dae34959b606b05a7aae72209fd2f4dedb75822d23

  • \Users\Admin\AppData\Local\Temp\is-3R4RQ.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/1212-106-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-110-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-130-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-125-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-122-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-119-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-66-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-116-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-113-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-69-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-72-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-75-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-78-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-81-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-91-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-100-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-84-0x0000000002900000-0x00000000029A2000-memory.dmp

    Filesize

    648KB

  • memory/1212-94-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-97-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-86-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/1212-103-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/3320-11-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3320-68-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3620-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3620-67-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3620-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/5024-63-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/5024-60-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB

  • memory/5024-59-0x0000000000400000-0x000000000074D000-memory.dmp

    Filesize

    3.3MB