Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    13/06/2024, 23:01

General

  • Target

    6413fd90f62c0208818f1ae7ca1f4062fa8868b80d3a45752a725dd7bdce9140.exe

  • Size

    4.9MB

  • MD5

    c917d38908a1d866f74b8a8f8b099bfa

  • SHA1

    49ad7582a96557b6c496a1e2721fb34a72d153f2

  • SHA256

    6413fd90f62c0208818f1ae7ca1f4062fa8868b80d3a45752a725dd7bdce9140

  • SHA512

    dd15de162fe2fb3bdd079eb2560180f0cee8b1b9a660fb0c8827f1333f4631c2e4c342b82d81ab42c60912b07cf5654ca35d1592037947798a9e0ab71e2a9f60

  • SSDEEP

    98304:mNlDtDC9uawhTVtGyqQjhcXrrJfYeWJDNgCvoYvX5dx6h3YKnhtK4Hbse:clDtDDT2yq0mrrJwee0YvXfxClnhtjp

Malware Config

Extracted

Family

socks5systemz

C2

bolitur.com

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 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\6413fd90f62c0208818f1ae7ca1f4062fa8868b80d3a45752a725dd7bdce9140.exe
    "C:\Users\Admin\AppData\Local\Temp\6413fd90f62c0208818f1ae7ca1f4062fa8868b80d3a45752a725dd7bdce9140.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Users\Admin\AppData\Local\Temp\is-UTQ79.tmp\6413fd90f62c0208818f1ae7ca1f4062fa8868b80d3a45752a725dd7bdce9140.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-UTQ79.tmp\6413fd90f62c0208818f1ae7ca1f4062fa8868b80d3a45752a725dd7bdce9140.tmp" /SL5="$40218,4836535,54272,C:\Users\Admin\AppData\Local\Temp\6413fd90f62c0208818f1ae7ca1f4062fa8868b80d3a45752a725dd7bdce9140.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3916
      • C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
        "C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3304
      • C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
        "C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe

    Filesize

    3.0MB

    MD5

    0e0e8f9a6f0d23b831c5ff76d0c7a15e

    SHA1

    f53aa118c444f3da2f17f83748d22f6457702812

    SHA256

    462f692b554343ad0b9f3a8af3f00588bbcf2fd94ae49bce8ed1dc74d9c4bf3d

    SHA512

    370eddc63a77e1b448ee9dded76a7221d30746f3245fbabc8cd80e0d524c822c3d8925872ba2797f77bb09f3b7e61d00076f64a44b603dfcfdfe3f36e3a5f2db

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

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-UTQ79.tmp\6413fd90f62c0208818f1ae7ca1f4062fa8868b80d3a45752a725dd7bdce9140.tmp

    Filesize

    680KB

    MD5

    895d982b558dbe81e0d8d31e818f766e

    SHA1

    27d9e61b8edaf48db4c519be05f0f4ea33900a7a

    SHA256

    3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

    SHA512

    4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

  • memory/2716-68-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2716-1-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2716-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/3304-59-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3304-60-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3304-63-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3304-64-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-73-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-86-0x0000000000A60000-0x0000000000B02000-memory.dmp

    Filesize

    648KB

  • memory/3548-115-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-70-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-112-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-74-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-77-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-80-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-83-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-67-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-89-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-94-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-97-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-100-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-103-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-106-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3548-109-0x0000000000400000-0x0000000000704000-memory.dmp

    Filesize

    3.0MB

  • memory/3916-12-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3916-69-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB