Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16-06-2024 08:48

General

  • Target

    68e63688ff67acb26abc1d0038d247361a57fdfeb55464bff2fd8688c44d5daa.exe

  • Size

    5.8MB

  • MD5

    55e316426832b28f84b4a25719379c30

  • SHA1

    e61af4a8521b17b2ad4128418c7deb28e211335a

  • SHA256

    68e63688ff67acb26abc1d0038d247361a57fdfeb55464bff2fd8688c44d5daa

  • SHA512

    ece941015a39bf3ddfc328ab000eeb2994ace2c5b09680a5008c2ec1503ef8d58f35f5565688876d408ed223a405baae784a8507614ef469c7cb336d62be40d1

  • SSDEEP

    98304:mH4/3dHnGjhmqKgiz4GKdM6lhjETbIZGIq4UpDvEEJCncqmzArfhy9Ufqjl0:P/tHqkzudM6lUb2SHpjftqwsa12

Malware Config

Extracted

Family

socks5systemz

C2

bdhoyhp.com

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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\68e63688ff67acb26abc1d0038d247361a57fdfeb55464bff2fd8688c44d5daa.exe
    "C:\Users\Admin\AppData\Local\Temp\68e63688ff67acb26abc1d0038d247361a57fdfeb55464bff2fd8688c44d5daa.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4952
    • C:\Users\Admin\AppData\Local\Temp\is-ODRH4.tmp\68e63688ff67acb26abc1d0038d247361a57fdfeb55464bff2fd8688c44d5daa.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ODRH4.tmp\68e63688ff67acb26abc1d0038d247361a57fdfeb55464bff2fd8688c44d5daa.tmp" /SL5="$70232,5863023,54272,C:\Users\Admin\AppData\Local\Temp\68e63688ff67acb26abc1d0038d247361a57fdfeb55464bff2fd8688c44d5daa.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4560
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4084
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe" -s
        3⤵
        • Executes dropped EXE
        PID:8

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe
    Filesize

    3.4MB

    MD5

    84c32cad47d901a5bdeed678295f3e4c

    SHA1

    3eeea1cc122c980b8e0db9f0e5b0cd19ce5ffff1

    SHA256

    20076c60f7dd1a1e34b055efb85ef41e4f5c5d30c08f705312af96c6becbe3e4

    SHA512

    56ba3d2fa9d86687e63d29f25421a7b125f7d91aa1ee0219e9c0bd2d19d07d073b8e625f17d82345c2d67e54108fb1593728d88f9360da6fa4fc799ef38a5133

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

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Local\Temp\is-ODRH4.tmp\68e63688ff67acb26abc1d0038d247361a57fdfeb55464bff2fd8688c44d5daa.tmp
    Filesize

    680KB

    MD5

    5baf97b8447c7245e308c807eba2b172

    SHA1

    628c759120b7595bb697c14dd265f7f4616c8e72

    SHA256

    ef10ffb51e1be8ba1b160ebdfee12c968b3f98f71310bdcb003dd117f4b2a124

    SHA512

    dc38d1a5ae1e8b6f3779aea908a55a1853ecf7b6a632f11c50d9abc48aafa60e90182eb5a280d3ba94430d2ce5f02624b4c2000bd636da34643f25c95772e47d

  • memory/8-101-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-98-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-119-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-116-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-113-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-73-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-110-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-107-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-104-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-76-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-79-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-82-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-85-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-88-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/8-89-0x0000000002640000-0x00000000026E2000-memory.dmp
    Filesize

    648KB

  • memory/8-92-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/4084-66-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/4084-70-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/4084-65-0x0000000000400000-0x0000000000774000-memory.dmp
    Filesize

    3.5MB

  • memory/4560-12-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4560-75-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4952-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/4952-74-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/4952-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB