Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2024, 04:56

General

  • Target

    8c1941f5d3657404e1e111edcb4e409f80cdcda08f3e28ab170ae2b32a2a901e.exe

  • Size

    3.7MB

  • MD5

    a6dd4369ae0699f41266c1bb521706d8

  • SHA1

    9d94dffb0c850f071475a52cd1f9575698b971a1

  • SHA256

    8c1941f5d3657404e1e111edcb4e409f80cdcda08f3e28ab170ae2b32a2a901e

  • SHA512

    ad5bd5b49344e96d1928d18542233419c6e5446e50648987f2c5191c0b9879c0ea5eaaa404a7cb17b582b5664ac92ea3445fd29fb8debe54eaaacbe7c2e25edc

  • SSDEEP

    98304:NzgKErVIqUIWBfbg8d9vIOqFkViIukwidf4:pgKEhdUIWBfXskruhid4

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 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 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c1941f5d3657404e1e111edcb4e409f80cdcda08f3e28ab170ae2b32a2a901e.exe
    "C:\Users\Admin\AppData\Local\Temp\8c1941f5d3657404e1e111edcb4e409f80cdcda08f3e28ab170ae2b32a2a901e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1772
    • C:\Users\Admin\AppData\Local\Temp\is-TFM10.tmp\8c1941f5d3657404e1e111edcb4e409f80cdcda08f3e28ab170ae2b32a2a901e.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-TFM10.tmp\8c1941f5d3657404e1e111edcb4e409f80cdcda08f3e28ab170ae2b32a2a901e.tmp" /SL5="$A02CA,3575306,54272,C:\Users\Admin\AppData\Local\Temp\8c1941f5d3657404e1e111edcb4e409f80cdcda08f3e28ab170ae2b32a2a901e.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3756
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3540
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:376

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-9AMC0.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-TFM10.tmp\8c1941f5d3657404e1e111edcb4e409f80cdcda08f3e28ab170ae2b32a2a901e.tmp

          Filesize

          692KB

          MD5

          5e86b0ec372d2fc1fd230de780e7e967

          SHA1

          b4f60e0014da39c3e7a443deaaaf086aa01f7139

          SHA256

          e8cdcf3e17f27f736c3a131ea7510764087d28909effa27f03de54746452956f

          SHA512

          759f5874ac78a3d630350bbf22a1393cfe41d0914d43452292bce139b6063c045f0f7582aefa197c8c9e37f1bf4e3dd84ce5f5b792bdbabd5e62c419d1b4541d

        • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

          Filesize

          3.9MB

          MD5

          f37f4f511a0316a88a9c0c983e149034

          SHA1

          9845d2beb6310e7a33a681f92a8b5c550ae04cab

          SHA256

          c1c0b2bd3b69dd4c5483c30460c1957e845c245c3af67dc5dd98b9ff2d6b25c3

          SHA512

          ed021a5b22171ea1715100be1816e50ce8b20c7a83061ee11ec760241bc703c62fc2f22fddb37f1593a3eb840e77abd62c2ac73e2e0509fc436045eab876333a

        • memory/376-88-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-72-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-109-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-106-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-102-0x0000000000A80000-0x0000000000B22000-memory.dmp

          Filesize

          648KB

        • memory/376-101-0x0000000000A80000-0x0000000000B22000-memory.dmp

          Filesize

          648KB

        • memory/376-100-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-59-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-97-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-94-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-63-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-66-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-69-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-91-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-75-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-78-0x0000000000A80000-0x0000000000B22000-memory.dmp

          Filesize

          648KB

        • memory/376-80-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/376-85-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1772-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1772-61-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1772-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/3540-57-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/3540-55-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/3540-53-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/3540-52-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/3756-13-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3756-62-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB