Analysis

  • max time kernel
    292s
  • max time network
    298s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30-05-2024 22:44

General

  • Target

    34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe

  • Size

    4.8MB

  • MD5

    7f6ae1962a3180de6f18c6e94dee43ed

  • SHA1

    019a7f98458ed3224665260c36e2557796e86941

  • SHA256

    34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642

  • SHA512

    62d9d558937359b36597df0e4be90ab4ab70798058c3fe1361439553cf9839e83f8016670cf4a6770fcaea0786651cd22d7b10c1c248d527ba689875f844e8c9

  • SSDEEP

    98304:mXXJhzwbzigfMELGiShzyUDWohp0Qrfp7H5bvy1VlaXB:GQq4MaGiShzxioD0WFb8y

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 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe
    "C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5064
    • C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp" /SL5="$50236,4804141,54272,C:\Users\Admin\AppData\Local\Temp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5056
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2552
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:5036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

    Filesize

    3.0MB

    MD5

    6e193493307124a4c213ee2624459c28

    SHA1

    c94d6a9da2a9f7e3edd003ba35183a70541cdfdf

    SHA256

    217bf8946ad94b5ae2b28fd9ba05dbd5ac1814a6d2a3c0efabc74b76500014bc

    SHA512

    db5e7831aab9c93816479ded8f73269e51dab694df60b385b2782ce15daa33550b5aaa481e22710c8d758457f2149f3a7073ff7546d5d421081372df9516d1b2

  • C:\Users\Admin\AppData\Local\Temp\is-M38S1.tmp\34c4ca578767f7d200e234c01c3c6d77c3bca86982867122866fce3400335642.tmp

    Filesize

    680KB

    MD5

    b70ed3d1bcbe0eb891e7fcd65a6c77e4

    SHA1

    30cf3d962d02a6a985d9adb67c915295568d69fa

    SHA256

    3f93f208a112fac1c2fa79cab9829339bc479d2d6585c2e997465e986da5e6f7

    SHA512

    86197a5309226a26badf73e64935c0c373013694dbbefd7d87129accc4652adafa70e7a6a2b53845d67acdacb8081a14be67d0f63aa2554991572b60cc04ab86

  • \Users\Admin\AppData\Local\Temp\is-2LSV7.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/2552-59-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/2552-63-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/2552-60-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-81-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-91-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-128-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-65-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-125-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-122-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-69-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-72-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-75-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-78-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-118-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-84-0x0000000000950000-0x00000000009F2000-memory.dmp

    Filesize

    648KB

  • memory/5036-86-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-115-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-94-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-97-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-100-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-103-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-106-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-109-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5036-112-0x0000000000400000-0x00000000006FF000-memory.dmp

    Filesize

    3.0MB

  • memory/5056-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5056-68-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5064-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5064-67-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5064-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB