Analysis

  • max time kernel
    142s
  • max time network
    126s
  • 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, 22:48

General

  • Target

    13c9fc020fa2dbf9e041f41b7c6c397f985f36688a424b211e2b0bdd52f0efbb.exe

  • Size

    4.0MB

  • MD5

    689bc082f14837fa391e3d1f3602a01f

  • SHA1

    2dda8717a458af06e66e85dfac7710473d193650

  • SHA256

    13c9fc020fa2dbf9e041f41b7c6c397f985f36688a424b211e2b0bdd52f0efbb

  • SHA512

    900d92e34438d019ff4ab50722936a10d48620e9d53244a92d6cbce0a39ae274ef01635f3e697f561eadb748acb1deefbfd4d3d461af73afd18e389af47fe194

  • SSDEEP

    98304:NUUIk6Z0gE9hreio/6p0SQQ+JXTY8qefAsiBWcpBsi+8iGdX:WUIZ0gE9bo7ZDkeYLbtiGV

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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\13c9fc020fa2dbf9e041f41b7c6c397f985f36688a424b211e2b0bdd52f0efbb.exe
    "C:\Users\Admin\AppData\Local\Temp\13c9fc020fa2dbf9e041f41b7c6c397f985f36688a424b211e2b0bdd52f0efbb.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Users\Admin\AppData\Local\Temp\is-MFAOI.tmp\13c9fc020fa2dbf9e041f41b7c6c397f985f36688a424b211e2b0bdd52f0efbb.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-MFAOI.tmp\13c9fc020fa2dbf9e041f41b7c6c397f985f36688a424b211e2b0bdd52f0efbb.tmp" /SL5="$60240,3878124,54272,C:\Users\Admin\AppData\Local\Temp\13c9fc020fa2dbf9e041f41b7c6c397f985f36688a424b211e2b0bdd52f0efbb.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:3820
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3052
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2116

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-HGJ7C.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-HGJ7C.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-MFAOI.tmp\13c9fc020fa2dbf9e041f41b7c6c397f985f36688a424b211e2b0bdd52f0efbb.tmp

          Filesize

          692KB

          MD5

          00f15ee57af82fc40ac1ec609d1810a4

          SHA1

          6abfae4f73ade5af54d267c02389daf49abd6a51

          SHA256

          20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

          SHA512

          f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

        • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe

          Filesize

          3.3MB

          MD5

          5270e5d4afc3f0079b7cb564ed9a24c8

          SHA1

          3e0246e3179f5e527d5a5141135c2f194628b7df

          SHA256

          275cf9f3095c360a20f184f1c79332838e978accdd37228c81cba5a3779fba04

          SHA512

          6ebb3bb10a2880c3edfe1739363d88eba745cc55152ffcb5602a432e30a4e30c8b637cb858112c9c3099de9bbbcac519a408d849c1966da1a38f1a405b821b01

        • memory/2116-91-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-78-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-115-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-112-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-108-0x0000000002570000-0x0000000002612000-memory.dmp

          Filesize

          648KB

        • memory/2116-107-0x0000000002570000-0x0000000002612000-memory.dmp

          Filesize

          648KB

        • memory/2116-106-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-66-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-103-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-100-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-69-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-72-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-75-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-97-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-81-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-84-0x0000000002570000-0x0000000002612000-memory.dmp

          Filesize

          648KB

        • memory/2116-88-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2116-94-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3052-63-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3052-60-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3052-59-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3052-58-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3820-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3820-68-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4684-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4684-67-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4684-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB