Analysis

  • max time kernel
    141s
  • max time network
    127s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    15-05-2024 12:04

General

  • Target

    be6aa11ebd0598bfe775533ec1f805b5a8f0c801e71f521ead695a605f69602c.exe

  • Size

    5.4MB

  • MD5

    96b41cbc8a1a49e374126acb6cd84fe9

  • SHA1

    1e121d4ab612b0001aa6febbdbb9bcfa988696d8

  • SHA256

    be6aa11ebd0598bfe775533ec1f805b5a8f0c801e71f521ead695a605f69602c

  • SHA512

    bf44af6754e3dad4dade72d0fc23c4e96d411c67260a3a402c37af31f975b35bb140f79da32084ba33b400333583e9388d7ad9ffc428d6275680d36f2129c30d

  • SSDEEP

    98304:mjK9ndHSPIv7KNIibJWbwylNJ1wpN9VWzXW9x0FVBZLpmp1reJg:hndHSwj6IiADNJor9x2VXUneu

Malware Config

Extracted

Family

socks5systemz

C2

http://bnqgtgj.com/search/?q=67e28dd86f59a17b435afa187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffa16c7eb92993b

http://bnqgtgj.com/search/?q=67e28dd86f59a17b435afa187c27d78406abdd88be4b12eab517aa5c96bd86eb91864d835a8bbc896c58e713bc90c91a36b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee909d3cc9689516

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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 WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be6aa11ebd0598bfe775533ec1f805b5a8f0c801e71f521ead695a605f69602c.exe
    "C:\Users\Admin\AppData\Local\Temp\be6aa11ebd0598bfe775533ec1f805b5a8f0c801e71f521ead695a605f69602c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4232
    • C:\Users\Admin\AppData\Local\Temp\is-QMN2L.tmp\be6aa11ebd0598bfe775533ec1f805b5a8f0c801e71f521ead695a605f69602c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QMN2L.tmp\be6aa11ebd0598bfe775533ec1f805b5a8f0c801e71f521ead695a605f69602c.tmp" /SL5="$B020E,5427590,54272,C:\Users\Admin\AppData\Local\Temp\be6aa11ebd0598bfe775533ec1f805b5a8f0c801e71f521ead695a605f69602c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments.exe
        "C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3600
      • C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments.exe
        "C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments.exe" -s
        3⤵
        • Executes dropped EXE
        PID:5048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-P37A9.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-P37A9.tmp\_isetup\_isdecmp.dll

    Filesize

    32KB

    MD5

    b6f11a0ab7715f570f45900a1fe84732

    SHA1

    77b1201e535445af5ea94c1b03c0a1c34d67a77b

    SHA256

    e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

    SHA512

    78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

  • C:\Users\Admin\AppData\Local\Temp\is-QMN2L.tmp\be6aa11ebd0598bfe775533ec1f805b5a8f0c801e71f521ead695a605f69602c.tmp

    Filesize

    677KB

    MD5

    b0e392bef736eefdab59adbcbd328bfb

    SHA1

    2c8ee12d403f18986e4a6e778f7b0fed6af60464

    SHA256

    08e30111a49a92611b79b803d1ce41bb6886379d4161d5f432e4262ffa368202

    SHA512

    e3c774c4645d62c617f1c44dbde71c281b711d9735dd70eca06696995cf6a85f96f663460bc56a6b52f64b512cc1506271195f2f15e831fcd8b767097661d382

  • C:\Users\Admin\AppData\Local\Victoria Pigments\libeay32.dll

    Filesize

    1.9MB

    MD5

    876a839023b8f962a72d295da7495734

    SHA1

    62a7728679bc18784b1fbf1d013f7cece18cbec9

    SHA256

    a757d773da406411fb977761f6e56f016d48d224aedaf3d875ed4d4a9ede6158

    SHA512

    e1b23a2f5ec0100ff874ca075bbd0f90e9065a90fec66861f99df603d7aaa9db8e8ec326710fdc11ad41d01befe4ea3077136127acf613614d0d12ff23bec6c1

  • C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments.exe

    Filesize

    2.3MB

    MD5

    beed67b3af81569d268af1f3ed2f98a5

    SHA1

    276529ce0303bec30ba0f7ed98670a52915e479e

    SHA256

    10cd711314e87f9cf1bd46e869c6eebda56c24c58aaf57fef41f242b367af055

    SHA512

    089ca97454c50db83190f2941d10da96e281b72ef662475fe09d360165bdc2b18a9ab0fdc585abc6f4ade892bbb88a9dead4218e0d7e8026675d1ce60c0fe635

  • memory/3044-10-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/3044-77-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/3600-66-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/3600-69-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/3600-70-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/3600-65-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/4232-76-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4232-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4232-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5048-78-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-94-0x00000000024C0000-0x0000000002562000-memory.dmp

    Filesize

    648KB

  • memory/5048-74-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-81-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-82-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-85-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-88-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-91-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-96-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-75-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-101-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-104-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-107-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-110-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-113-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-116-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-117-0x00000000024C0000-0x0000000002562000-memory.dmp

    Filesize

    648KB

  • memory/5048-118-0x00000000024C0000-0x0000000002562000-memory.dmp

    Filesize

    648KB

  • memory/5048-122-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB

  • memory/5048-125-0x0000000000400000-0x000000000065B000-memory.dmp

    Filesize

    2.4MB