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Analysis

  • max time kernel
    122s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/01/2024, 18:44

General

  • Target

    7fc493af09b5db4be092f609adb357414e8a2c19bb191421bb057fe1acb2c3ba.exe

  • Size

    4.6MB

  • MD5

    93c9a67a0f183f4f1d9e3fdc7e8f8e69

  • SHA1

    dacbe33276dc970cc778a4f62407ddb1ae65f64e

  • SHA256

    7fc493af09b5db4be092f609adb357414e8a2c19bb191421bb057fe1acb2c3ba

  • SHA512

    ec623ef15667f28d4e55da66f9846050da1bd78f0664f4d621090962ddd47855a4b4401bfa55253b687b441b0da59aa5c8ad3d50f1676264fb76c0cae54df77e

  • SSDEEP

    98304:Qr/6Qib7v2y401+uJM5Opa5iSYasIHvvaNjTfcrXKNWf/8ITZJJ1yK9/4dm8:Y6Qizj+OmOpa5iPnIHa+20dTZL9/4dD

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.

  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7fc493af09b5db4be092f609adb357414e8a2c19bb191421bb057fe1acb2c3ba.exe
    "C:\Users\Admin\AppData\Local\Temp\7fc493af09b5db4be092f609adb357414e8a2c19bb191421bb057fe1acb2c3ba.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5080
    • C:\Users\Admin\AppData\Local\Temp\is-HGE8I.tmp\7fc493af09b5db4be092f609adb357414e8a2c19bb191421bb057fe1acb2c3ba.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-HGE8I.tmp\7fc493af09b5db4be092f609adb357414e8a2c19bb191421bb057fe1acb2c3ba.tmp" /SL5="$C002E,4573314,54272,C:\Users\Admin\AppData\Local\Temp\7fc493af09b5db4be092f609adb357414e8a2c19bb191421bb057fe1acb2c3ba.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3824
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 192
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4576
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 192
          4⤵
            PID:2892
        • C:\Users\Admin\AppData\Local\Print Queue Messaging\printqueuemessaging.exe
          "C:\Users\Admin\AppData\Local\Print Queue Messaging\printqueuemessaging.exe" -s
          3⤵
          • Executes dropped EXE
          PID:2680
        • C:\Users\Admin\AppData\Local\Print Queue Messaging\printqueuemessaging.exe
          "C:\Users\Admin\AppData\Local\Print Queue Messaging\printqueuemessaging.exe" -i
          3⤵
          • Executes dropped EXE
          PID:220

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Print Queue Messaging\printqueuemessaging.exe

      Filesize

      893KB

      MD5

      9213e27616582dee1ad4f5cec73ee881

      SHA1

      cccc0cca7b390fd19c2bcc212ea7ca689dd52187

      SHA256

      c99750048ff5e576535ccf1c5aae655e85248edc7dde00f46b7a669ad48f49c2

      SHA512

      3b30ed9c7bfaa9f2a634e82055ac110eb6f143f341ae0e90203bd1e7d2f4c5f81e49d2607b3d97762a4751e61bf436dfece1f264a02caabf1762b6894a0f71f6

    • C:\Users\Admin\AppData\Local\Print Queue Messaging\printqueuemessaging.exe

      Filesize

      832KB

      MD5

      f7e050aaa97267ee9601de833eafaf18

      SHA1

      54ceadb4e33607bdf80ceac0130341ee31a8ca33

      SHA256

      d97ab730a769ba4538f819f0ef8bbf57b39bd4b1a29522a7645e8ede0608898a

      SHA512

      b8a046c1a94f24d90151ca5d0ebe0dc2b2be8f7c374d1b1c640cf88147dd895c15a059e1c24294bae14bd280c7bb58e7709738235151aefbdc77d0e861af9238

    • C:\Users\Admin\AppData\Local\Print Queue Messaging\printqueuemessaging.exe

      Filesize

      92KB

      MD5

      b79b1ac4f708fe159f96adcebad15928

      SHA1

      61c5c99c6d488e993b0ce87847b422e99797d3b4

      SHA256

      d9655cb2cb8f132f46155844e4539202479a0b1ef64505695e528465e5e06799

      SHA512

      4a25e4f6dcb4b2147dafdd3491f8ef2b5127f61c8ff313865ac05c54053816ffd6e2e8db1eb41e21626cd45da00b520678377b8b9a0e8241618256e0fcf5b41e

    • C:\Users\Admin\AppData\Local\Temp\is-HGE8I.tmp\7fc493af09b5db4be092f609adb357414e8a2c19bb191421bb057fe1acb2c3ba.tmp

      Filesize

      688KB

      MD5

      a7662827ecaeb4fc68334f6b8791b917

      SHA1

      f93151dd228d680aa2910280e51f0a84d0cad105

      SHA256

      05f159722d6905719d2d6f340981a293f40ab8a0d2d4a282c948066809d4af6d

      SHA512

      e9880b3f3ec9201e59114850e9c570d0ad6d3b0e04c60929a03cf983c62c505fcb6bb9dc3adeee88c78d43bd484159626b4a2f000a34b8883164c263f21e6f4a

    • C:\Users\Admin\AppData\Local\Temp\is-HGE8I.tmp\7fc493af09b5db4be092f609adb357414e8a2c19bb191421bb057fe1acb2c3ba.tmp

      Filesize

      129KB

      MD5

      c8472a0ff7e934184a260d079b3c9427

      SHA1

      01e790b2cacd0f691cd30fa1f40e7a91e623ecba

      SHA256

      c47b003d9de62a24d131ffcccb93b106a16f5087058ddb22b06f77025e41208a

      SHA512

      801ae09d9dff931e5f3d494d3348ebabd5844e66690e280e698b3d26358ba1bba5399501f756a81cdecd101a6ea7f9770ed48099982f6791dbcabac8be45d3c1

    • C:\Users\Admin\AppData\Local\Temp\is-U7AJP.tmp\_isetup\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-U7AJP.tmp\_isetup\_isdecmp.dll

      Filesize

      13KB

      MD5

      a813d18268affd4763dde940246dc7e5

      SHA1

      c7366e1fd925c17cc6068001bd38eaef5b42852f

      SHA256

      e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

      SHA512

      b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

    • memory/220-125-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/220-122-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/220-121-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/220-126-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-157-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-164-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-130-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-180-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-177-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-133-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-173-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-170-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-138-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-137-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-141-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-144-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-147-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-153-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-154-0x0000000000730000-0x00000000007D2000-memory.dmp

      Filesize

      648KB

    • memory/2680-148-0x0000000000730000-0x00000000007D2000-memory.dmp

      Filesize

      648KB

    • memory/2680-167-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-160-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/2680-161-0x0000000000730000-0x00000000007D2000-memory.dmp

      Filesize

      648KB

    • memory/2680-129-0x0000000000400000-0x00000000005B7000-memory.dmp

      Filesize

      1.7MB

    • memory/3824-134-0x0000000000690000-0x0000000000691000-memory.dmp

      Filesize

      4KB

    • memory/3824-132-0x0000000000400000-0x00000000004BC000-memory.dmp

      Filesize

      752KB

    • memory/3824-10-0x0000000000690000-0x0000000000691000-memory.dmp

      Filesize

      4KB

    • memory/5080-1-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/5080-131-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB