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25/03/2024, 12:22

240325-pjx52afc66 10

25/03/2024, 12:17

240325-pf91esac5w 10

Analysis

  • max time kernel
    152s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2024, 12:17

General

  • Target

    ddfdcd1867cf1462a6b507d71eb15dd91703c06f55def388c81277c406c3f76d.exe

  • Size

    6.7MB

  • MD5

    1db2a35c4d921cd6bb7a2fb3e090c6d0

  • SHA1

    65f0b48e931cdec3b4682781771b33a57bdcb6c3

  • SHA256

    ddfdcd1867cf1462a6b507d71eb15dd91703c06f55def388c81277c406c3f76d

  • SHA512

    ed208da1ab29ba9883a91483f92cf5a322ee2637bfb5efea0c415a7df9af342290e2d19ed08b4589a13d49d54b5f0348f011d872d5daa0607b3724e9b5d7ec85

  • SSDEEP

    196608:iALDrbajVlKIMFEuvgGD4sfovnvdn3A9UvudDoiC4dD:dDqJKEGWk+lAkirdD

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.

  • Drops file in Program Files directory 59 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ddfdcd1867cf1462a6b507d71eb15dd91703c06f55def388c81277c406c3f76d.exe
    "C:\Users\Admin\AppData\Local\Temp\ddfdcd1867cf1462a6b507d71eb15dd91703c06f55def388c81277c406c3f76d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:232
    • C:\Users\Admin\AppData\Local\Temp\is-SRVQV.tmp\ddfdcd1867cf1462a6b507d71eb15dd91703c06f55def388c81277c406c3f76d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-SRVQV.tmp\ddfdcd1867cf1462a6b507d71eb15dd91703c06f55def388c81277c406c3f76d.tmp" /SL5="$801DC,6794025,328192,C:\Users\Admin\AppData\Local\Temp\ddfdcd1867cf1462a6b507d71eb15dd91703c06f55def388c81277c406c3f76d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3520
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 24
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3980
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 24
          4⤵
            PID:3788
        • C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe
          "C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3580
        • C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe
          "C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4692
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=5164 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:884

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe

        Filesize

        1.7MB

        MD5

        4cb3e39998474774364ee9e0dfc9d7b3

        SHA1

        4098ff5f8545d0457822adfa35d6850117e60dc1

        SHA256

        eab9ace81611f33c7d3eafb88252719cd99ac12c561462334489bf520f1397b5

        SHA512

        c74f6125922a1fbfec9c67ace66ffc22bd45268913af5cecce35526868b17ef6a650654218b93bb32f4dd53dc5c37d79c39ab4eb97e4ed446d8f8e5b2e04a4ed

      • C:\Users\Admin\AppData\Local\Temp\is-587LE.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-587LE.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-SRVQV.tmp\ddfdcd1867cf1462a6b507d71eb15dd91703c06f55def388c81277c406c3f76d.tmp

        Filesize

        399KB

        MD5

        5a91cbdc1ee81e4b59d5a137e45e6cae

        SHA1

        96e04ea789c3568b4e8a6b274af161dbfae7fcec

        SHA256

        bd885664b3ca2304968255a850a4df126f0899a40b7772e2db98c53cfafb40c5

        SHA512

        050a5a78f3d1d5dcc0d29e486ff3917eda39115b2039a60ee49fff4d2c4063772dd284954a6663385b4d11d143ca6835e0bcdbfac229b453c668a95f6e8562b7

      • C:\Users\Admin\AppData\Local\Temp\is-SRVQV.tmp\ddfdcd1867cf1462a6b507d71eb15dd91703c06f55def388c81277c406c3f76d.tmp

        Filesize

        17KB

        MD5

        58e733d2bb75b37d7446a4c77d077def

        SHA1

        4791cf849e934c3415ccf7e4020298f3220a1c68

        SHA256

        7a7cc20636635e974e12b75e9a0ce602065ebeee9f2f1b36f6f8f4fe2a0bef2b

        SHA512

        b797ae4ed2669b20affb21d6bc01d542785f0ea372f924880b963eb15158e565f83dcf3a5131f44b1c65a79c4380e377323a5523b1fa2457c2858668d7eea81e

      • memory/232-144-0x0000000000400000-0x0000000000457000-memory.dmp

        Filesize

        348KB

      • memory/232-0-0x0000000000400000-0x0000000000457000-memory.dmp

        Filesize

        348KB

      • memory/3520-6-0x00000000006A0000-0x00000000006A1000-memory.dmp

        Filesize

        4KB

      • memory/3520-153-0x00000000006A0000-0x00000000006A1000-memory.dmp

        Filesize

        4KB

      • memory/3520-150-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/3580-140-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/3580-141-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/3580-145-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/3580-146-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-157-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-171-0x0000000000750000-0x00000000007F2000-memory.dmp

        Filesize

        648KB

      • memory/4692-149-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-158-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-161-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-163-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-166-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-169-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-170-0x0000000000750000-0x00000000007F2000-memory.dmp

        Filesize

        648KB

      • memory/4692-152-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-176-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-180-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-181-0x0000000000750000-0x00000000007F2000-memory.dmp

        Filesize

        648KB

      • memory/4692-183-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-186-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-189-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-194-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB

      • memory/4692-197-0x0000000000400000-0x00000000005BB000-memory.dmp

        Filesize

        1.7MB