Analysis

  • max time kernel
    149s
  • max time network
    153s
  • 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 21:50

General

  • Target

    8c6d2334fed2a35c6203f2051768bbefbc93d2e6cf3372ab97fc9a632de18b0e.exe

  • Size

    5.6MB

  • MD5

    0763b1eb3ba4779fbfe974fc4c9ab3ef

  • SHA1

    af3c7aa9eeb22ebf950cfefec14779f2034f894e

  • SHA256

    8c6d2334fed2a35c6203f2051768bbefbc93d2e6cf3372ab97fc9a632de18b0e

  • SHA512

    ba62cd88323f82aa23e2b22205d6d58cf5914f722fbc14524237e7bb573d8a1dd3ec0229efd54cccd906afd47fc64d331f26236ab72d600aa046ca7ed88f52f2

  • SSDEEP

    98304:m2HCVUkHS6pJTG5in1niT18rBuoI/argwMWg5kU770k+zPxUe3:nGHSQYGnRBuZGDMx7QPxUe3

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\8c6d2334fed2a35c6203f2051768bbefbc93d2e6cf3372ab97fc9a632de18b0e.exe
    "C:\Users\Admin\AppData\Local\Temp\8c6d2334fed2a35c6203f2051768bbefbc93d2e6cf3372ab97fc9a632de18b0e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4936
    • C:\Users\Admin\AppData\Local\Temp\is-0JLCO.tmp\8c6d2334fed2a35c6203f2051768bbefbc93d2e6cf3372ab97fc9a632de18b0e.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-0JLCO.tmp\8c6d2334fed2a35c6203f2051768bbefbc93d2e6cf3372ab97fc9a632de18b0e.tmp" /SL5="$D016C,5586021,54272,C:\Users\Admin\AppData\Local\Temp\8c6d2334fed2a35c6203f2051768bbefbc93d2e6cf3372ab97fc9a632de18b0e.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2864
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2520
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:5004

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

    97037ae6f19f69d8349f0c9e9791f267

    SHA1

    37c25c7324dc4fb5bdf97214807ebcf4886519ea

    SHA256

    b5c594c4ce4090f58193c5f8b869570f91d8761bd210af4908a1229d66838310

    SHA512

    7afc2eb82699eea1f38cfc62a2405e865147243db61ce11747123012016d1b144d68d8dd9857515a46dea950437c2f6c991397fb17fcdcbb217ca5a3cc66499f

  • C:\Users\Admin\AppData\Local\Temp\is-0JLCO.tmp\8c6d2334fed2a35c6203f2051768bbefbc93d2e6cf3372ab97fc9a632de18b0e.tmp

    Filesize

    680KB

    MD5

    ef9105d68de970efad785e01b21e4e2b

    SHA1

    7fe8801a3e86814972da63a7a943bdc5e31d8888

    SHA256

    381198ca0669ab760f6f9b84e39c39ab5e870f65d17d03ed0dc572a1c602364a

    SHA512

    e388cbf32a4d833c0e4c6c1a129515b4d12eac5b333f2aec39e741d3a0da856c5923d47cf4d3083ad030f7f07b9214261b2b9119720920dd42929eeb617e779c

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

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

    Filesize

    32KB

    MD5

    b6f11a0ab7715f570f45900a1fe84732

    SHA1

    77b1201e535445af5ea94c1b03c0a1c34d67a77b

    SHA256

    e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

    SHA512

    78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

  • memory/2520-68-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2520-65-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2520-69-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2864-75-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2864-19-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4936-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4936-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4936-74-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5004-79-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-92-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-73-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-82-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-85-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-88-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-91-0x0000000000AA0000-0x0000000000B42000-memory.dmp

    Filesize

    648KB

  • memory/5004-76-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-98-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-101-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-104-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-107-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-110-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-113-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-116-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/5004-119-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB