Analysis

  • max time kernel
    148s
  • 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
    25-06-2024 00:34

General

  • Target

    9e0ebe6b0f7b5dcf0e7c3f06bdcae8b9a805f5f878677371623cbfcfa7556d82.exe

  • Size

    4.8MB

  • MD5

    c30d2c4add41600d793079c6955be16f

  • SHA1

    4ca1e8814d87901a2aceb9696d63a5f3e092970b

  • SHA256

    9e0ebe6b0f7b5dcf0e7c3f06bdcae8b9a805f5f878677371623cbfcfa7556d82

  • SHA512

    198fdf440b55f81b7290a7a39d658866250c40a566e002eff386bb7f99628604503f9bed1e498a76afb7728d055cd255a5a482ccd77c94e4d30cc138ad605d15

  • SSDEEP

    98304:mtjil7TEQiSU7XcR/rbwPV9zf6+xs1DljylTQhip2pIak5CHWFkQ:wjilZiHXcR/vcV9zf6OsPjyNQhT9Q

Malware Config

Extracted

Family

socks5systemz

C2

dtdmpbo.info

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\9e0ebe6b0f7b5dcf0e7c3f06bdcae8b9a805f5f878677371623cbfcfa7556d82.exe
    "C:\Users\Admin\AppData\Local\Temp\9e0ebe6b0f7b5dcf0e7c3f06bdcae8b9a805f5f878677371623cbfcfa7556d82.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5100
    • C:\Users\Admin\AppData\Local\Temp\is-QU7S2.tmp\9e0ebe6b0f7b5dcf0e7c3f06bdcae8b9a805f5f878677371623cbfcfa7556d82.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QU7S2.tmp\9e0ebe6b0f7b5dcf0e7c3f06bdcae8b9a805f5f878677371623cbfcfa7556d82.tmp" /SL5="$40204,4781395,54272,C:\Users\Admin\AppData\Local\Temp\9e0ebe6b0f7b5dcf0e7c3f06bdcae8b9a805f5f878677371623cbfcfa7556d82.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4088
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3100
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-8CNVE.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-QU7S2.tmp\9e0ebe6b0f7b5dcf0e7c3f06bdcae8b9a805f5f878677371623cbfcfa7556d82.tmp

    Filesize

    680KB

    MD5

    ba4b463f4255291b24b4e085ff9f3e16

    SHA1

    fcde9af1aee2ea2bfaf572fd44bec987fa107f9f

    SHA256

    6abf9dbbad899a7f2d879ebeafd857d9d11a46844ad543cee3314ca3e5527f26

    SHA512

    e3aa9dbf2189f52d6c047c992b940831fd8e342a552f76e8abba19aab102d9f8cafc877fb942f61e9fff957974d01934f8d54452c9fe3a2638d928b72cf4ca68

  • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

    Filesize

    2.8MB

    MD5

    79c2c105e4f44071b2b530cff5d39938

    SHA1

    3997237abb69cceaf3272c7f0870e7f9e88d6059

    SHA256

    878577de3a355e9fb41a9e2541a1631fa521e7b24e40252a20b8d32b3bb218fc

    SHA512

    9fadcae4226cbb55be401aaca0dff55d93a8da3d4a1d443d0d469bd63873f82a3fc833c7ee111b16b526e38e0e5b364f8b24dfb3103ac291b1cfa997d14295e0

  • memory/3100-60-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/3100-59-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/3100-63-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/3100-65-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4088-71-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4088-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4444-72-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-86-0x0000000000AA0000-0x0000000000B42000-memory.dmp

    Filesize

    648KB

  • memory/4444-69-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-116-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-113-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-110-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-75-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-76-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-79-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-82-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-85-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-67-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-90-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-95-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-98-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-101-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-104-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/4444-107-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/5100-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/5100-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5100-70-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB