Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    26/05/2024, 11:06

General

  • Target

    9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe

  • Size

    4.5MB

  • MD5

    07d1a87a4ffcf5d632190d8cdfedbc81

  • SHA1

    f9bb42f040d9262f6367307a759f3a4ea4e7382c

  • SHA256

    9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d

  • SHA512

    f4b7c18129402533376f7de905af069637aab919d521f28c8febe11dad215e47f2cbcb7fbe97c9af1af7fa647362589087dad2b4ecd084ac5a8cda7a86d8c7bf

  • SSDEEP

    98304:m5XeR8zd469Wa7fjYgTvLUL15Y+7zvDQkja8XRXzY7J:Eeu4Jarj255Y+7XQkvBXsF

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\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe
    "C:\Users\Admin\AppData\Local\Temp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1296
    • C:\Users\Admin\AppData\Local\Temp\is-2JKIK.tmp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-2JKIK.tmp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp" /SL5="$40204,4476623,54272,C:\Users\Admin\AppData\Local\Temp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:480
      • C:\Users\Admin\AppData\Local\Submore Media Player\submoremediaplayer32.exe
        "C:\Users\Admin\AppData\Local\Submore Media Player\submoremediaplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4460
      • C:\Users\Admin\AppData\Local\Submore Media Player\submoremediaplayer32.exe
        "C:\Users\Admin\AppData\Local\Submore Media Player\submoremediaplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Submore Media Player\submoremediaplayer32.exe

    Filesize

    2.9MB

    MD5

    a765f298d543351b32d4717d6200eca7

    SHA1

    75acc90c820cc27fe10dcab60741eca4f576e0f6

    SHA256

    db56d04667494189799ae387af9443f8129fb79fc645a1dc645de61e655e0c6d

    SHA512

    e341c7b94517ae8405d34f82cc70a945c1ae1f7a4804b16e63d8d7d6f70f96c0f8b490f886e162b4e8a4e495aeef463fa09fa70283f6c801740fd33f444fa986

  • C:\Users\Admin\AppData\Local\Temp\is-2JKIK.tmp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp

    Filesize

    680KB

    MD5

    f6db8acbb8c91e6153cfa8e15e895e93

    SHA1

    cbee583d7f736fc293724fdf75ecd9ab5373be92

    SHA256

    dea6f606992fd2691c1943cd4e59066bf19c0b436af9d018c2f724d22da20962

    SHA512

    f0a71677491b805bd95bc0f0584ee97980801f837f476aab23a2a6939304cc42373b61f3f4968519e1f0f668fbf51e9a7765b8f6779d93e783214d80a8b1b24f

  • C:\Users\Admin\AppData\Local\Temp\is-V8CPQ.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/480-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/480-69-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1296-68-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1296-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1296-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3860-99-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-93-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-117-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-114-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-70-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-73-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-76-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-79-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-82-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-85-0x00000000008E0000-0x0000000000982000-memory.dmp

    Filesize

    648KB

  • memory/3860-88-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-67-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-96-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-110-0x00000000008E0000-0x0000000000982000-memory.dmp

    Filesize

    648KB

  • memory/3860-102-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-105-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-108-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/3860-109-0x00000000008E0000-0x0000000000982000-memory.dmp

    Filesize

    648KB

  • memory/4460-59-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/4460-62-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB

  • memory/4460-64-0x0000000000400000-0x00000000006E2000-memory.dmp

    Filesize

    2.9MB