Analysis

  • max time kernel
    293s
  • max time network
    300s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    20-06-2024 22:34

General

  • Target

    12bf868e165b87e06cdae0d614ba08902bd898d4e037a294d3149e6e3513eac2.exe

  • Size

    5.6MB

  • MD5

    5a07736f196d6fe29f034692a8f5d1d4

  • SHA1

    850a1f657cd7cd2b6be0b7a96bd43cd58a35da18

  • SHA256

    12bf868e165b87e06cdae0d614ba08902bd898d4e037a294d3149e6e3513eac2

  • SHA512

    0542eb4ec756482f00a0f52600fd48b65cbe74143f99436a61c13650dc538a92ae14efb7bdb33880a93c4c573a3a1465484d258016033217579d9bb384fcf6d0

  • SSDEEP

    98304:m/Z535VGfNzfX7o8jlsk5Mr7aGRTGNVnbIbExdZCJjejOnyZJLJixcPgOxb0ud8:ck35srajNVxQeSnoJL8xyPG

Malware Config

Extracted

Family

socks5systemz

C2

bxcbift.com

http://bxcbift.com/search/?q=67e28dd8645fa72f495daa1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff718c2ed9c9f3b

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\12bf868e165b87e06cdae0d614ba08902bd898d4e037a294d3149e6e3513eac2.exe
    "C:\Users\Admin\AppData\Local\Temp\12bf868e165b87e06cdae0d614ba08902bd898d4e037a294d3149e6e3513eac2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Users\Admin\AppData\Local\Temp\is-49M9K.tmp\12bf868e165b87e06cdae0d614ba08902bd898d4e037a294d3149e6e3513eac2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-49M9K.tmp\12bf868e165b87e06cdae0d614ba08902bd898d4e037a294d3149e6e3513eac2.tmp" /SL5="$502FE,5626759,54272,C:\Users\Admin\AppData\Local\Temp\12bf868e165b87e06cdae0d614ba08902bd898d4e037a294d3149e6e3513eac2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4596
      • C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
        "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4124
      • C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
        "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe

    Filesize

    3.3MB

    MD5

    b27e124c6cb910d8c3a28586c07ea749

    SHA1

    b0263caadca1b0ce222d58c85a2a103e1e77ab26

    SHA256

    75b6db9bec6683f3def421524f17f602017b7e85033fcbddebd5a7e9b5e707a0

    SHA512

    974fb433a08d3e9aaaa672382738d65b0250f1439a3080859fd47f23075e8a20b283148d607f6b8f2bbb50f4edae8c692fb700fb646fd23653b45c58cd4a0706

  • C:\Users\Admin\AppData\Local\Temp\is-49M9K.tmp\12bf868e165b87e06cdae0d614ba08902bd898d4e037a294d3149e6e3513eac2.tmp

    Filesize

    680KB

    MD5

    4468da54a8b07613269ca5537be5e235

    SHA1

    9aded70f0853385c5561fa275a77508edae15111

    SHA256

    0177788e41f30da5d5ac6c66c54fd51c8eac03a1eddc9deb5ff6aefff7821153

    SHA512

    3b7c3a3bfe4e9ec20ba4d04d06270aa9e26a342bc806c092b37d6a97064c0c7b54f75c9242295f03899d1b5deac99b91480d0c4ba23a6bc33f3739f322279313

  • \Users\Admin\AppData\Local\Temp\is-12MOR.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-12MOR.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • memory/1268-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1268-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1268-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4124-65-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4124-66-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4124-69-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4596-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4596-18-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4736-84-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-106-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-78-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-81-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-71-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-87-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-90-0x0000000000A40000-0x0000000000AE2000-memory.dmp

    Filesize

    648KB

  • memory/4736-92-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-97-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-100-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-103-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-75-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-109-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-112-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-116-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-119-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-122-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-125-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-128-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-131-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB

  • memory/4736-136-0x0000000000400000-0x0000000000747000-memory.dmp

    Filesize

    3.3MB