Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    30-05-2024 17:05

General

  • Target

    1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe

  • Size

    5.6MB

  • MD5

    817c3686a1e428bd4aa39e98a88a4797

  • SHA1

    dc6312a95ac771dd2cf5384a501204071a3ebcd0

  • SHA256

    1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d

  • SHA512

    620eae0ff2dec63531cb2f286e501f4fcc0b8c051da11bc883dd3eb605f4abcae60c18b3a217ae6280bc81440b9d3d7d8fb4d6254821041aea21ebd6b5e4eebc

  • SSDEEP

    98304:mzStfcUu40x4GP5mOHqDj4XMSZds6tIwQRXtGv+xFVElBnkAzu3PjEacQGYC:yfhuGAOH+6Mp6tIwq11E4r3PwaU

Malware Config

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 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\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe
    "C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:404
    • C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp" /SL5="$60226,5603052,54272,C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4744
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1656
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    3.3MB

    MD5

    d5401a0b3ab39de1b6cff6cb3707e53a

    SHA1

    ba292408dd8ff5a0d2c542c93cae499e5cfb8e82

    SHA256

    0b8ab5f49407ba2f064cea8df59ab61f385181dd40153d9c720734cd708220c2

    SHA512

    5fb874d2aea110a3d4837a3ec87cb8db3fc40c082ad3ce4ba7ea586bafe0ec86bbb2e188bd31c3838dd4b7aa618494936d59fa6f171eb77215b778dedbf98a2f

  • C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp

    Filesize

    680KB

    MD5

    0618c738cf49fa5f045702c69585d459

    SHA1

    c71706644125d08fabf067cbe06030fb9795a2e8

    SHA256

    32d63dc7b012c5855667c4b809b98b42b2a841d38e5350fe7b603b46a74d484e

    SHA512

    bd042294fe9a09b01013d94211cf89ec4c7b1bfec384eb717a25ea864e2c9154ba082b5d9ccc9fd5e04d3b551f7bfdfea5d96d74056e5e27811a9cc4aaecc43a

  • C:\Users\Admin\AppData\Local\Temp\is-NF0FJ.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-NF0FJ.tmp\_isetup\_isdecmp.dll

    Filesize

    32KB

    MD5

    b6f11a0ab7715f570f45900a1fe84732

    SHA1

    77b1201e535445af5ea94c1b03c0a1c34d67a77b

    SHA256

    e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

    SHA512

    78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

  • memory/404-74-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/404-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/404-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1656-70-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1656-65-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/1656-68-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-79-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-93-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-119-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-76-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-116-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-82-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-85-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-88-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-91-0x0000000000A30000-0x0000000000AD2000-memory.dmp

    Filesize

    648KB

  • memory/2056-73-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-98-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-101-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-104-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-107-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-110-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2056-113-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/4744-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4744-75-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB