Analysis

  • max time kernel
    143s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2024, 01:15

General

  • Target

    a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.exe

  • Size

    2.0MB

  • MD5

    1815652bbc9863f1fbee1e2d177c5227

  • SHA1

    f86eca55fac4a8946071ffb058a5e53035c9d0b3

  • SHA256

    a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a

  • SHA512

    0c2cf56cadbfa70d1729065ac045f4c8d2bd48f70cb7eb7e9c0f80b4dec885cf811ec36891b5719e3ec78867f72613b646acd2ef6ebf44095561c6627e5a9a06

  • SSDEEP

    49152:326OR4kwI4U06inapc4sxtPOFwtwLMbb6hMOms36HM:mgen7paxt2FwSwbbAZCM

Malware Config

Extracted

Family

socks5systemz

C2

http://dtjhtso.info/search/?q=67e28dd86554fa2a495aa4197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfd18c3e69d

http://dtjhtso.info/search/?q=67e28dd86554fa2a495aa4197c27d78406abdd88be4b12eab517aa5c96bd86e9968549865a8bbc896c58e713bc90c91836b5281fc235a925ed3e03d6bd974a95129070b611e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ec979338c467

Signatures

  • Detect Socks5Systemz Payload 5 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 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).

  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.exe
    "C:\Users\Admin\AppData\Local\Temp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2644
    • C:\Users\Admin\AppData\Local\Temp\is-Q71CA.tmp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-Q71CA.tmp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.tmp" /SL5="$4010A,1780134,54272,C:\Users\Admin\AppData\Local\Temp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3040
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2684
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2380

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          1.2MB

          MD5

          9ead69486e7530e672139e432e31cda5

          SHA1

          46efa8161656e8d2ca438e124ce9af8be1b2f890

          SHA256

          13d4c480e1c7c75fddfd0f16c9380acc81d12aba664506f5f96f63cac8f15fbd

          SHA512

          f1e2d4fd6f553e7c140176717fbd4987b034ea1e34d4b6520a4f08f661460a20ec5ae0d33ce24e70185e6428a93d676fddb4144e1a73f8300356388c2d132429

        • \Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          2.0MB

          MD5

          b60d0a7cea04fb71a6390e773a6bf4fe

          SHA1

          3ea965ab6eb2c45f67fb19230f484f4399d5f87c

          SHA256

          15d252823210d0ab4adc8881242b3a367c46f2fcbe40a580581c20ab25ac886f

          SHA512

          e9a5f989954d49269bdd0c45e4ff4f228edee84a3e35a1fa2e4fdb283c9ac41a028abe40bf55927b9b958e6f91d4fcbca997b8aa28341c3139b3e12504fd6313

        • \Users\Admin\AppData\Local\Temp\is-1KNU6.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-1KNU6.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-Q71CA.tmp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • memory/2380-53-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-92-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-104-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-100-0x00000000025F0000-0x0000000002692000-memory.dmp

          Filesize

          648KB

        • memory/2380-85-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-99-0x00000000025F0000-0x0000000002692000-memory.dmp

          Filesize

          648KB

        • memory/2380-82-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-98-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-51-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-86-0x00000000025F0000-0x0000000002692000-memory.dmp

          Filesize

          648KB

        • memory/2380-77-0x00000000025F0000-0x0000000002692000-memory.dmp

          Filesize

          648KB

        • memory/2380-95-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-56-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-107-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-89-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-61-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-62-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-65-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-68-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-71-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2380-74-0x00000000025F0000-0x0000000002692000-memory.dmp

          Filesize

          648KB

        • memory/2380-76-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2644-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2644-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2644-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2684-45-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2684-49-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2684-46-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2684-44-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3040-58-0x0000000003800000-0x0000000003A10000-memory.dmp

          Filesize

          2.1MB

        • memory/3040-57-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/3040-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/3040-43-0x0000000003800000-0x0000000003A10000-memory.dmp

          Filesize

          2.1MB

        • memory/3040-8-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB