Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16-06-2024 22:45

General

  • Target

    d6c3165b405caeb9bf8c7f63f1486bc0fd0cd6ed4800c9cdb0672fa1d4ce202b.exe

  • Size

    5.7MB

  • MD5

    3ceb7fe818ac5bb5a88b9295c905a01e

  • SHA1

    790f847d86b0b295617d52914aaa7e00f7efd10a

  • SHA256

    d6c3165b405caeb9bf8c7f63f1486bc0fd0cd6ed4800c9cdb0672fa1d4ce202b

  • SHA512

    795e689207b89e527ce544306f77b38b1b1106eddd3fcc64e4d2773364ccc0a694e52eab108442b8ba24641f9f54181fd30994d168ebc7d22381895948a19957

  • SSDEEP

    98304:mEWvbSTB5gPOJrdBqwXz2UmKAEGTl799w8amKWBEM78TmUQV8/JpliiG0BC9BhZ:e+TBCPO1Lzj9mKAEVzmhByTm98/7liZn

Malware Config

Extracted

Family

socks5systemz

C2

ezcedur.ua

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 3 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\d6c3165b405caeb9bf8c7f63f1486bc0fd0cd6ed4800c9cdb0672fa1d4ce202b.exe
    "C:\Users\Admin\AppData\Local\Temp\d6c3165b405caeb9bf8c7f63f1486bc0fd0cd6ed4800c9cdb0672fa1d4ce202b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Users\Admin\AppData\Local\Temp\is-479RO.tmp\d6c3165b405caeb9bf8c7f63f1486bc0fd0cd6ed4800c9cdb0672fa1d4ce202b.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-479RO.tmp\d6c3165b405caeb9bf8c7f63f1486bc0fd0cd6ed4800c9cdb0672fa1d4ce202b.tmp" /SL5="$4022A,5713830,54272,C:\Users\Admin\AppData\Local\Temp\d6c3165b405caeb9bf8c7f63f1486bc0fd0cd6ed4800c9cdb0672fa1d4ce202b.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4332
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2260
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4532

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
    Filesize

    3.6MB

    MD5

    997577cdd2539d7eddbe4d8003f65854

    SHA1

    4ce42b26d46fc9a132b15481ae75d4ec2efe40e3

    SHA256

    72e21eab01707ce0536cbe6372b2d8e310ba322ebd0db71fa4746b307256a445

    SHA512

    6a81b287666c27ad60a0f10e2e11fd8ada440773ee1c9232760833c53d7d0d51815fc7d607d4d2fd746d76244dd17b960cd17ad9cb262a1c49d30bcbdccc8af9

  • C:\Users\Admin\AppData\Local\Temp\is-479RO.tmp\d6c3165b405caeb9bf8c7f63f1486bc0fd0cd6ed4800c9cdb0672fa1d4ce202b.tmp
    Filesize

    680KB

    MD5

    7a27a6b2c6d4e3cf7f7046032f6ca620

    SHA1

    4b9e5af4bbea5d1d5760c5ceb3ef4f71bdb9fb19

    SHA256

    d44cb08a6d7e9c723d71932028ea8d43bccbecf37ec01654b76c4299bdeef35a

    SHA512

    b2b700d952f8dca39bc7d2831363d96090f42aab30b627b7b0709a730ef19e9314bac963e3d7257680a925c4e7f0e355d030eb39e58f489e9c79f61079fa5279

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

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-FPPMM.tmp\_isetup\_isdecmp.dll
    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • memory/2260-81-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/2260-65-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/2260-66-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/2260-71-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/2260-70-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4332-10-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4332-77-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4532-82-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-112-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-124-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-75-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-78-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-121-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-118-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-83-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-86-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-89-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-92-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-95-0x0000000002690000-0x0000000002732000-memory.dmp
    Filesize

    648KB

  • memory/4532-98-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-103-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-106-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-109-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-74-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4532-115-0x0000000000400000-0x0000000000794000-memory.dmp
    Filesize

    3.6MB

  • memory/4868-2-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/4868-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/4868-76-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB