Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/07/2024, 13:46

General

  • Target

    f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe

  • Size

    5.3MB

  • MD5

    6f2f70353f95755bd4328197aa2bda5e

  • SHA1

    f853ef376c36f8087d863a8088b2abf8477ec407

  • SHA256

    f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb

  • SHA512

    6e0629016630e24f1b91e80bdf62c78bbc913b7870cf7d1f0e2a2ca318d3cd61e4594ddb6c7db3d23fd0bd014e094eef3f255b24bc983b252de0bb349938847a

  • SSDEEP

    98304:CbnMUvfMRKeYAN1RMXkxJ8QdaxSSxF3d1VTjh25E3q2knF3Qx3xw:WfkYy10ySQduDFt1VTjQ5Cq2klQrw

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 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\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe
    "C:\Users\Admin\AppData\Local\Temp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2984
    • C:\Users\Admin\AppData\Local\Temp\is-VJ661.tmp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-VJ661.tmp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp" /SL5="$A0056,5319478,54272,C:\Users\Admin\AppData\Local\Temp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1800
      • C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe
        "C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:464
      • C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe
        "C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe

    Filesize

    4.9MB

    MD5

    8160ddf42be871844d2ecd9c6100ee94

    SHA1

    e03914c7f5e4f463fd4fbd94886932f8b7d0f131

    SHA256

    3b5580702176b4e7b078063f8171838e731ecdec7bbbe36c15be391e77fa6195

    SHA512

    63e3ffcd72ff8256876210dcda93224bfe59f6e4f8a7cd902541b0c53d43c8664bdfa3f82496be1929e2469755469e77608fc06de4a3cbbf30a164ea9b57d941

  • C:\Users\Admin\AppData\Local\Temp\is-RGAL2.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-VJ661.tmp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp

    Filesize

    680KB

    MD5

    db83d289dcc1ffc4fa03a45e1d2b4ef0

    SHA1

    d17603a722a4ec3fc1a1355d37f4d67f45d53f9b

    SHA256

    2b896eb3adf00308929d9afbb0ad1a77cb0ac007422a325ae56a2034f3e87b4d

    SHA512

    0807bb559572d023d2bff2a18b168f78949dec230e702a2d581b5a1f161277e43735261f1a205cad6fd35592d1be5f18136ea8f52a2e01a4949a58f390034813

  • memory/464-60-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/464-61-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/464-63-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/464-65-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/1800-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1800-69-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2984-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2984-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2984-68-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3984-70-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-73-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-76-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-79-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-82-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-85-0x0000000000AF0000-0x0000000000B92000-memory.dmp

    Filesize

    648KB

  • memory/3984-89-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-92-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-95-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-98-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-101-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-104-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-107-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-110-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB

  • memory/3984-113-0x0000000000400000-0x00000000008EA000-memory.dmp

    Filesize

    4.9MB