Analysis

  • max time kernel
    292s
  • max time network
    299s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13-06-2024 23:25

General

  • Target

    80a30a05e6a5146a078ba7b3edb6d30ec1c8f6d6b858a2e332ce88244d598a46.exe

  • Size

    4.8MB

  • MD5

    e25832505490177b19a6c7061ba3974c

  • SHA1

    d989507b01ad3a9a03be6c0d2e2701380298c6c8

  • SHA256

    80a30a05e6a5146a078ba7b3edb6d30ec1c8f6d6b858a2e332ce88244d598a46

  • SHA512

    da7fcac0ddb0859bf02ae8bf1449530ce17900fd078e4a402f8d01ed0d0ea4c170e8121f96ea221689cd1d67e283bb92a73511f8f9d077dd4ad055285b568bb1

  • SSDEEP

    98304:mqxJ4To7RSWABFXV4yADIRNuaCUA+KxSkq2ZegLGLmWAeS7y:PJWo7RSZFa2b99KxSkqMLyH

Malware Config

Extracted

Family

socks5systemz

C2

cciucvz.net

http://cciucvz.net/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c2ee949233

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\80a30a05e6a5146a078ba7b3edb6d30ec1c8f6d6b858a2e332ce88244d598a46.exe
    "C:\Users\Admin\AppData\Local\Temp\80a30a05e6a5146a078ba7b3edb6d30ec1c8f6d6b858a2e332ce88244d598a46.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Users\Admin\AppData\Local\Temp\is-DB8IA.tmp\80a30a05e6a5146a078ba7b3edb6d30ec1c8f6d6b858a2e332ce88244d598a46.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DB8IA.tmp\80a30a05e6a5146a078ba7b3edb6d30ec1c8f6d6b858a2e332ce88244d598a46.tmp" /SL5="$120080,4821065,54272,C:\Users\Admin\AppData\Local\Temp\80a30a05e6a5146a078ba7b3edb6d30ec1c8f6d6b858a2e332ce88244d598a46.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2672
      • C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
        "C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4876
      • C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
        "C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3712

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
    Filesize

    3.2MB

    MD5

    b5accf838be3812d09e7dbd4d68a2c30

    SHA1

    c1425921618177c084aa3075f231317b45f34f2d

    SHA256

    5d5cbb8674eeceebda7e034d1b203865d9b955e6437284514d501edabf4177c2

    SHA512

    2b1807f970079dcbc88f679686cd31a5a68f49eb8174b80ffe385699ba13a83cb05b37717e37e20af27e65ecb306951e263342f553000fa5df9db2ef149c81a9

  • C:\Users\Admin\AppData\Local\Temp\is-DB8IA.tmp\80a30a05e6a5146a078ba7b3edb6d30ec1c8f6d6b858a2e332ce88244d598a46.tmp
    Filesize

    680KB

    MD5

    bb765f2ae7f9da76f9edef8dde07f1cf

    SHA1

    ba5af8f092247d9a81d9d50d5390bbe5a280501a

    SHA256

    65b94a7e8d0e19c89c871b49457934d80365d9a9c2ff781509a1cb68421da552

    SHA512

    a6d7f16c4bb1e6dde9e221ae343a2e46de39b314f56bb9877574b29d14becd209f131a5b649faa97aa847c252fe379b96a71791bdd1f102e054fafb7a8e0b0aa

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

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/1448-68-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1448-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/1448-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2672-13-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2672-69-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/3712-107-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-92-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-131-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-126-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-70-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-73-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-76-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-79-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-82-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-85-0x00000000009A0000-0x0000000000A42000-memory.dmp
    Filesize

    648KB

  • memory/3712-87-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-67-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-95-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-98-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-101-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-104-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-123-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-111-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-114-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-117-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/3712-120-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/4876-59-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/4876-60-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB

  • memory/4876-64-0x0000000000400000-0x000000000072E000-memory.dmp
    Filesize

    3.2MB