Analysis

  • max time kernel
    143s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    03-11-2024 20:43

General

  • Target

    bf1e76b416fc0342d49fe79da89995717679ad80f8c0dd1a9b591044ef02f0e2.exe

  • Size

    5.9MB

  • MD5

    76e13aec5f23fe5dc4fa208adfb7607f

  • SHA1

    b7520e125aa63b8badbb77276dad11237882eaf1

  • SHA256

    bf1e76b416fc0342d49fe79da89995717679ad80f8c0dd1a9b591044ef02f0e2

  • SHA512

    38c75c73e4663fcff7a73a979d098965a38defc482adbfaa75071bffc5b1b469f047f2b8f093b6d5ed4629f1d7b515ea63ccda90e5418d63040c6d92430e0b4a

  • SSDEEP

    98304:QGUl6mFaXjj5r6L//FaobnJhZl/Vave/7JS2WsmroX1W9aBX2pQ7615Tl3yRWPVP:VUrFWjJ6zQoPZF0OJSOX1WrQq9yRwPKs

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 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.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf1e76b416fc0342d49fe79da89995717679ad80f8c0dd1a9b591044ef02f0e2.exe
    "C:\Users\Admin\AppData\Local\Temp\bf1e76b416fc0342d49fe79da89995717679ad80f8c0dd1a9b591044ef02f0e2.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Users\Admin\AppData\Local\Temp\is-4F6RH.tmp\bf1e76b416fc0342d49fe79da89995717679ad80f8c0dd1a9b591044ef02f0e2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-4F6RH.tmp\bf1e76b416fc0342d49fe79da89995717679ad80f8c0dd1a9b591044ef02f0e2.tmp" /SL5="$6001E,5983289,54272,C:\Users\Admin\AppData\Local\Temp\bf1e76b416fc0342d49fe79da89995717679ad80f8c0dd1a9b591044ef02f0e2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:652
      • C:\Users\Admin\AppData\Local\MP4LoadBar 5.14.5\mp4addon3264.exe
        "C:\Users\Admin\AppData\Local\MP4LoadBar 5.14.5\mp4addon3264.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\MP4LoadBar 5.14.5\mp4addon3264.exe

    Filesize

    2.6MB

    MD5

    b95cffb87435ca187426688b2aec43fa

    SHA1

    23b52acea8c625e372caae5237b59afb85fe1bea

    SHA256

    66f1de45fe8cab1e0bf51285b83dd4d0fad78e898596fdd39a1d6d7bd6b944cc

    SHA512

    3b071077e322cd1f466e7fa42f00fb394259cc15391bc8d69a14f624f433412b2ac1cce789f60f1d0db6c2038cef171399dbabfcb8ead01b1ae3ad1a2e73fcb9

  • \Users\Admin\AppData\Local\Temp\is-4F6RH.tmp\bf1e76b416fc0342d49fe79da89995717679ad80f8c0dd1a9b591044ef02f0e2.tmp

    Filesize

    688KB

    MD5

    80c86047bb3eee014ff6256c0396eeb7

    SHA1

    0f24079e20ca8c5092b8b2a7d9406219dba109a9

    SHA256

    9a84d3043a9a402228d39d6ecef131c01d1fb2435ad336953eec97f74e6f13ed

    SHA512

    c74ff8077b831968a6d7a72596aca9d9cf52783f503aa8ed4eec0877704aa0b93dd5f85a72b41fb0a021b633c4a6bc32c154bad06a8a96b169b9da5e55f59add

  • \Users\Admin\AppData\Local\Temp\is-5D0JQ.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-5D0JQ.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/652-11-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/652-203-0x0000000002ED0000-0x0000000003178000-memory.dmp

    Filesize

    2.7MB

  • memory/652-168-0x0000000002ED0000-0x0000000003178000-memory.dmp

    Filesize

    2.7MB

  • memory/652-174-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/1820-175-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1820-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1820-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3048-183-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-170-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-180-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-171-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-186-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-189-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-192-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-193-0x00000000028C0000-0x0000000002962000-memory.dmp

    Filesize

    648KB

  • memory/3048-199-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-177-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-202-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-206-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-209-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-212-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-215-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-219-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB

  • memory/3048-222-0x0000000000400000-0x00000000006A8000-memory.dmp

    Filesize

    2.7MB