Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 19:43

General

  • Target

    5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe

  • Size

    5.1MB

  • MD5

    82005f23b2b25c12baef04dbc6826909

  • SHA1

    c0cc90dffc8a95b515da98c1ddf671417c59c038

  • SHA256

    5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09

  • SHA512

    fd72b8291801687ab3d93ae33fb42e1fae27da6bd18533a92ad2ce513a107e9e7593dea9778aca8eabeb256e20462b47d1d3f167632d94b3dbe262f1101e0692

  • SSDEEP

    98304:Cf4etLfRwGzmpnwNE4WrqssC++fLxl/Hj+ii9EPBq4CN+JXrPptclxB4nuNQxy:cdtLJw/pnm9WZsEfL3yi08B4ArXksuN1

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe
    "C:\Users\Admin\AppData\Local\Temp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3164
    • C:\Users\Admin\AppData\Local\Temp\is-MR1IV.tmp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-MR1IV.tmp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp" /SL5="$B0028,5086311,54272,C:\Users\Admin\AppData\Local\Temp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:924
      • C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
        "C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -i
        3⤵
        • Executes dropped EXE
        PID:372
      • C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
        "C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -s
        3⤵
        • Executes dropped EXE
        PID:708
  • 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 --field-trial-handle=4416,i,4778049104057176787,6631751660692402210,262144 --variations-seed-version --mojo-platform-channel-handle=3980 /prefetch:8
    1⤵
      PID:736

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
      Filesize

      3.8MB

      MD5

      b7d8dda6c10ce4eef9e955881b74ef50

      SHA1

      9284b34a24c48c70d8080bed255cdbcadc2824c1

      SHA256

      2e539d22dc4c9f025c5678cb87f3363aedfc2c6a0b4a7570ed38fe9edec1554e

      SHA512

      59fa4d85138f0819a1f40ab9381b99cb1fa29f8edb208ee458e6b746fa9aa239896bce9a5c5437f2e33b48b86d7a09f8378a2c185a8b6e79c5d77b3317901f81

    • C:\Users\Admin\AppData\Local\Temp\is-AVKG1.tmp\_isetup\_iscrypt.dll
      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-MR1IV.tmp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp
      Filesize

      680KB

      MD5

      6f995e2d6c8d0d1d03cb3afcd1deafaf

      SHA1

      0319dbd8c7b44067b82fed5272059757a526b3aa

      SHA256

      cc4530fee96cf6e821fa1dbed0c46ac5310c57d6336999e3f93d29f78376f9eb

      SHA512

      207b4d327be81e71152ce35cb272362e9862e6002a6c01e9e9df37578c3764ac1c8d19b19e8e3b751162724490f06fea10611d7becabaff3863af993a90db16d

    • memory/372-60-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/372-65-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/372-61-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/372-59-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-74-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-84-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-116-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-68-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-113-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-109-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-71-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-106-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-75-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-78-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-81-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-103-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-87-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-88-0x0000000002950000-0x00000000029F2000-memory.dmp
      Filesize

      648KB

    • memory/708-94-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-97-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/708-100-0x0000000000400000-0x00000000007C6000-memory.dmp
      Filesize

      3.8MB

    • memory/924-13-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/924-70-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/3164-0-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/3164-69-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/3164-2-0x0000000000401000-0x000000000040B000-memory.dmp
      Filesize

      40KB