Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 01:04

General

  • Target

    98affc593deaedca152f0dd9d74b820b8f99a4d5da2a4e047c6325ebbd4a5678.exe

  • Size

    5.2MB

  • MD5

    b3259f98d5cd88cb8a434b71c0d81e25

  • SHA1

    edd584cd00a3320b42da5570a64b4ba3d6ecf5b1

  • SHA256

    98affc593deaedca152f0dd9d74b820b8f99a4d5da2a4e047c6325ebbd4a5678

  • SHA512

    2c69edac4d256cd44aeb6b7e0a166920c2505cc399022d64b77f2a1d0d0419c4a9a29bdf05e254243e1f8e647e1175b0b41172ee4464a578d14d1346fce97a88

  • SSDEEP

    98304:m+lz20U/vYRG2w/IfCiUtpclU9jxJ8hdzvOOOwZsCnSgc4lF:TJUXYLw/3id6bJ6DXSgc43

Malware Config

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 FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\98affc593deaedca152f0dd9d74b820b8f99a4d5da2a4e047c6325ebbd4a5678.exe
    "C:\Users\Admin\AppData\Local\Temp\98affc593deaedca152f0dd9d74b820b8f99a4d5da2a4e047c6325ebbd4a5678.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4980
    • C:\Users\Admin\AppData\Local\Temp\is-DH8MR.tmp\98affc593deaedca152f0dd9d74b820b8f99a4d5da2a4e047c6325ebbd4a5678.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DH8MR.tmp\98affc593deaedca152f0dd9d74b820b8f99a4d5da2a4e047c6325ebbd4a5678.tmp" /SL5="$40214,5240647,54272,C:\Users\Admin\AppData\Local\Temp\98affc593deaedca152f0dd9d74b820b8f99a4d5da2a4e047c6325ebbd4a5678.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3220
      • C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
        "C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:856
      • C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
        "C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe

    Filesize

    2.5MB

    MD5

    6ec69161bd0a37a2cd7df70b634c0c45

    SHA1

    9edaaf06ca880170949c525fbaaf0400081202f4

    SHA256

    37470b5e85457f41409ddbdaf034210b7135915413d29376baf1b91f5931a019

    SHA512

    56d0252c091cb74e796167476f795e290738b2516924e01a49058ac24096e16982a23fd9d55c68bbd02956601a25690575092a77379095a2ca9cdf65da31fb03

  • C:\Users\Admin\AppData\Local\Temp\is-B6569.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-B6569.tmp\_isetup\_isdecmp.dll

    Filesize

    32KB

    MD5

    b6f11a0ab7715f570f45900a1fe84732

    SHA1

    77b1201e535445af5ea94c1b03c0a1c34d67a77b

    SHA256

    e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

    SHA512

    78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

  • C:\Users\Admin\AppData\Local\Temp\is-DH8MR.tmp\98affc593deaedca152f0dd9d74b820b8f99a4d5da2a4e047c6325ebbd4a5678.tmp

    Filesize

    680KB

    MD5

    29ac48e0713a4220ff4b4b47efe542b4

    SHA1

    9ea8bdf5547a541b755f4b2c0bc14bf817885e94

    SHA256

    deead3dd651930ad0bec5d7bae647d7a1637b48bb7495593995218c4cd6dd67c

    SHA512

    501cdc7df40fb0cd1a114b4d5f5dcab765141c58f29bafa1e4a816319354a3d6d9e0d4b2ee5a2fad64f3fb08fb7bbdaad30551587a875f8fbdc2acdb8f67a3d4

  • memory/856-71-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/856-65-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/856-66-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/856-69-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/3220-76-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3220-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4688-77-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-99-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-123-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-120-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-116-0x0000000002480000-0x0000000002522000-memory.dmp

    Filesize

    648KB

  • memory/4688-80-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-83-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-86-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-89-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-90-0x0000000002480000-0x0000000002522000-memory.dmp

    Filesize

    648KB

  • memory/4688-94-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-74-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-102-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-105-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-108-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-111-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-114-0x0000000000400000-0x000000000068F000-memory.dmp

    Filesize

    2.6MB

  • memory/4688-115-0x0000000002480000-0x0000000002522000-memory.dmp

    Filesize

    648KB

  • memory/4980-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4980-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4980-75-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB