Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-06-2024 11:36

General

  • Target

    cae655fc698d3092fe07a588ddb6489f8da26c30942d9ef74823b47a722db092.exe

  • Size

    5.7MB

  • MD5

    375efb9fabe93b91e6ea0e594b8a7abe

  • SHA1

    25f1e913f6570fe318c3cab135925251e96b8740

  • SHA256

    cae655fc698d3092fe07a588ddb6489f8da26c30942d9ef74823b47a722db092

  • SHA512

    663598ebdd8d4aed6ac46a8aa722d88aa17526610bc8541fe690df3da1e8b08bb0acdd595002516dcf8e6dd6230f73ef79ac86b0b428913e83acaec40b8d6689

  • SSDEEP

    98304:mxfH28i2/XvWzhsZQqK3ojnJTQ+ZfmYu9ui3yj+B7b5DglpOLoV3eYdAOpSwVe:CfW8i2HWzGY3ojnJlfmYuf3kEdgPOsuB

Malware Config

Extracted

Family

socks5systemz

C2

bfkqqoe.com

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 3 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\cae655fc698d3092fe07a588ddb6489f8da26c30942d9ef74823b47a722db092.exe
    "C:\Users\Admin\AppData\Local\Temp\cae655fc698d3092fe07a588ddb6489f8da26c30942d9ef74823b47a722db092.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3340
    • C:\Users\Admin\AppData\Local\Temp\is-J3580.tmp\cae655fc698d3092fe07a588ddb6489f8da26c30942d9ef74823b47a722db092.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-J3580.tmp\cae655fc698d3092fe07a588ddb6489f8da26c30942d9ef74823b47a722db092.tmp" /SL5="$700EA,5728550,54272,C:\Users\Admin\AppData\Local\Temp\cae655fc698d3092fe07a588ddb6489f8da26c30942d9ef74823b47a722db092.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4592
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3660
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2700
  • 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 --field-trial-handle=3988,i,14221647728265121051,6840906015709541562,262144 --variations-seed-version --mojo-platform-channel-handle=3748 /prefetch:8
    1⤵
      PID:4940

    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\Lampung Soundstage\lampungsoundstage32.exe
      Filesize

      3.6MB

      MD5

      fa5b316f27544ae19c41b182f5d6cdf1

      SHA1

      cf332812d80e33ddfaba0a9e33b5a04940299238

      SHA256

      0b26899cce9ba1546e289d908cd9612c20e3ca645b9afaf1ce55501aebf8b882

      SHA512

      13a5122f707ea63898115c6e3809963b0614ca4aef5601ec969dac5a42c2295ff4e6392052d28502a9986f48cd3deae4448f09e741fffe9d8949a480ff0d32a4

    • C:\Users\Admin\AppData\Local\Temp\is-ES1F0.tmp\_isetup\_iscrypt.dll
      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-ES1F0.tmp\_isetup\_isdecmp.dll
      Filesize

      13KB

      MD5

      a813d18268affd4763dde940246dc7e5

      SHA1

      c7366e1fd925c17cc6068001bd38eaef5b42852f

      SHA256

      e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

      SHA512

      b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

    • C:\Users\Admin\AppData\Local\Temp\is-J3580.tmp\cae655fc698d3092fe07a588ddb6489f8da26c30942d9ef74823b47a722db092.tmp
      Filesize

      680KB

      MD5

      40338aef9b322249896e762a5b73c94d

      SHA1

      dc401c87db8601ddf9eba26566cc5d6a32c0b390

      SHA256

      1dbc3f9b59777339175bec81b07dabea20e79318beac00826f68c3b726a87be3

      SHA512

      5af5dfcbf490b982ae9f6dcc4a6ba7ec81d3efb4e8a0277d9bbc72384211e9e4c8591d7360c356ae1e4fc79ec94ee8fba1d0d4cd83647baba04572d8d32619fe

    • memory/2700-99-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-86-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-120-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-117-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-114-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-111-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-108-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-74-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-105-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-102-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-77-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-80-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-83-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-96-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-89-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/2700-92-0x0000000002980000-0x0000000002A22000-memory.dmp
      Filesize

      648KB

    • memory/3340-0-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/3340-75-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/3340-2-0x0000000000401000-0x000000000040B000-memory.dmp
      Filesize

      40KB

    • memory/3660-71-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/3660-69-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/3660-66-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/3660-65-0x0000000000400000-0x0000000000794000-memory.dmp
      Filesize

      3.6MB

    • memory/4592-13-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/4592-76-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB