Analysis

  • max time kernel
    142s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    02-11-2024 20:16

General

  • Target

    e183c636aeb74fb59c206812f5b059319f592dabd3f825358a0274a286071426.exe

  • Size

    5.4MB

  • MD5

    26aa11a636d878e1dff8f2601ea291cd

  • SHA1

    a26e061b78134ac640db7b201e71bd254565f259

  • SHA256

    e183c636aeb74fb59c206812f5b059319f592dabd3f825358a0274a286071426

  • SHA512

    52210ef95154700f419dd222871e1e048808c22ba69819af9c907d3bb68b41227dcd19963459dcedaa903352b993de9192a62814152cfbc36030b4cc75207066

  • SSDEEP

    98304:Cy/ehk+pwNh6Whxqe0xlXghyfwbvVSfdkBS+dG1bH55MwCu8utP+3RcXeROGQx1Y:hqdShRqeKlXghyfQvVS0oBMqghcuEGQg

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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\e183c636aeb74fb59c206812f5b059319f592dabd3f825358a0274a286071426.exe
    "C:\Users\Admin\AppData\Local\Temp\e183c636aeb74fb59c206812f5b059319f592dabd3f825358a0274a286071426.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Users\Admin\AppData\Local\Temp\is-N8AJ3.tmp\e183c636aeb74fb59c206812f5b059319f592dabd3f825358a0274a286071426.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-N8AJ3.tmp\e183c636aeb74fb59c206812f5b059319f592dabd3f825358a0274a286071426.tmp" /SL5="$30146,5415710,54272,C:\Users\Admin\AppData\Local\Temp\e183c636aeb74fb59c206812f5b059319f592dabd3f825358a0274a286071426.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2672
      • C:\Users\Admin\AppData\Local\AVIToolbox 4.20\avitb32.exe
        "C:\Users\Admin\AppData\Local\AVIToolbox 4.20\avitb32.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\AVIToolbox 4.20\avitb32.exe

    Filesize

    2.6MB

    MD5

    e3bdd09827749399000b02c37e810b4e

    SHA1

    9466dde584f375bcf244292db9493c800bf2ae18

    SHA256

    f32baa3ff629863a2b7302ef30ab0270a034ea709e56b687788966e7f65d8a12

    SHA512

    93921364eaff18defe2df3ddff7d5e9b76eac6ddbe57fcf19d4a3d012bede7bcade786782da0d15d6a9c5c014d88fa35d71ae20e85d377338b9ced0abc937c0e

  • \Users\Admin\AppData\Local\Temp\is-8J3FE.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-8J3FE.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-N8AJ3.tmp\e183c636aeb74fb59c206812f5b059319f592dabd3f825358a0274a286071426.tmp

    Filesize

    680KB

    MD5

    de7502e3badcf515803d34f51f810cfa

    SHA1

    559104a160f740e7ba781d6427dbeda2a3e22d3b

    SHA256

    71d6062f137533c609383c1efc1dc5cd2f46441668915162865e57546b21ae95

    SHA512

    56b977994973cd937b9d5d303c093024f11a5c706722f7ff2e747d9dede87393cbcb1447fe1479d1fc759afb7981d9b2ec8fcfa2b77a8803fb94f636935b3f54

  • memory/1000-183-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-209-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-224-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-170-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-221-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-171-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-216-0x0000000002900000-0x00000000029A2000-memory.dmp

    Filesize

    648KB

  • memory/1000-217-0x0000000002900000-0x00000000029A2000-memory.dmp

    Filesize

    648KB

  • memory/1000-177-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-180-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-215-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-186-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-189-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-192-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-193-0x0000000002900000-0x00000000029A2000-memory.dmp

    Filesize

    648KB

  • memory/1000-199-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-212-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-202-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1000-206-0x0000000000400000-0x00000000006AD000-memory.dmp

    Filesize

    2.7MB

  • memory/1556-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1556-175-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1556-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2672-12-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2672-203-0x0000000003A50000-0x0000000003CFD000-memory.dmp

    Filesize

    2.7MB

  • memory/2672-174-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2672-168-0x0000000003A50000-0x0000000003CFD000-memory.dmp

    Filesize

    2.7MB