Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-05-2024 14:00

General

  • Target

    41616e9ec10e24b1d3b4d1e53c6be8ae0e5c3e10b8d81a3cdd640002041693d2.exe

  • Size

    4.8MB

  • MD5

    5b68e93efa01658abfa6973d4edefbba

  • SHA1

    bba6b283d9868ade8cdc9e3836b45b69d9571ee7

  • SHA256

    41616e9ec10e24b1d3b4d1e53c6be8ae0e5c3e10b8d81a3cdd640002041693d2

  • SHA512

    794195bbcdc95da4b51aecc39e529c34f31e831f8908d20a868b25edeb840c918844cb09d2b29fc14f3412f61d33f655275af482e58de637f10b157ad5a99682

  • SSDEEP

    98304:mL9+s43mQb0pcInMAkkDAY506fbgJpjjOAO4bzBj1EkqS/TtXEC0:mE3xgpLn+kkY50DpHrO8zjsSLBED

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 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\41616e9ec10e24b1d3b4d1e53c6be8ae0e5c3e10b8d81a3cdd640002041693d2.exe
    "C:\Users\Admin\AppData\Local\Temp\41616e9ec10e24b1d3b4d1e53c6be8ae0e5c3e10b8d81a3cdd640002041693d2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Users\Admin\AppData\Local\Temp\is-RM9DE.tmp\41616e9ec10e24b1d3b4d1e53c6be8ae0e5c3e10b8d81a3cdd640002041693d2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RM9DE.tmp\41616e9ec10e24b1d3b4d1e53c6be8ae0e5c3e10b8d81a3cdd640002041693d2.tmp" /SL5="$80090,4732976,54272,C:\Users\Admin\AppData\Local\Temp\41616e9ec10e24b1d3b4d1e53c6be8ae0e5c3e10b8d81a3cdd640002041693d2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:892
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:840
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

    Filesize

    3.3MB

    MD5

    9e5304485c9d6c03b9c4cc80a20b4f8f

    SHA1

    388c7dbc278211f9da02c5712eaa89f8527bc062

    SHA256

    ebf7209dc5f4d4e63e3a26c0cff178b9a66a19097bedbfe0fb535660c8d67eb0

    SHA512

    3b14b9c25808a9da1efde6368406f04c166c86b44cf55358fb87ca4fabc88748c9c3a2d2803f7017196d8439811b69a99ca678b46c1d4300a3e17a19f3e71517

  • C:\Users\Admin\AppData\Local\Temp\is-OF9SL.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-RM9DE.tmp\41616e9ec10e24b1d3b4d1e53c6be8ae0e5c3e10b8d81a3cdd640002041693d2.tmp

    Filesize

    680KB

    MD5

    35dc5f441f5af688cd72c6e0b8dc86dc

    SHA1

    328afce7e8d428b4c0769b722ebf6f7ada656751

    SHA256

    d54b98ace62fc4252c1b7f4a06166cbaa1f246183fb9ea36034b34c9bcd2dddc

    SHA512

    52d5291fdee71e36c724afdc6dfcf86ee17957e52cccbdb663285b5b2f4bfd9b8597e2cedf48f7faf0f17255c6544ae287e0d90c062f76451bc5fe994b39dcc4

  • memory/840-64-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/840-59-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/840-61-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/840-60-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/892-70-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/892-13-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1644-71-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-88-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-67-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-118-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-115-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-110-0x00000000009D0000-0x0000000000A72000-memory.dmp

    Filesize

    648KB

  • memory/1644-74-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-77-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-80-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-83-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-87-0x00000000009D0000-0x0000000000A72000-memory.dmp

    Filesize

    648KB

  • memory/1644-68-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-94-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-97-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-100-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-103-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-106-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-109-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1644-111-0x00000000009D0000-0x0000000000A72000-memory.dmp

    Filesize

    648KB

  • memory/5024-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5024-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/5024-69-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB