Analysis

  • max time kernel
    294s
  • max time network
    262s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    22/04/2024, 05:11

General

  • Target

    548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe

  • Size

    4.0MB

  • MD5

    b6a4d503871d781c0d67ae568ba2f690

  • SHA1

    c8df0476d353c1259667d372b2f33f053f0c889c

  • SHA256

    548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a

  • SHA512

    05e4e8442aa41cd4ecf00f6c7c6721752692b1f2ec7d9047d39f1bdd6b5a49eb58ade0372b534f63aad8539e3c5d52e1c533a5b0c7dfab35c7bca764041654cd

  • SSDEEP

    98304:7arJyuI1299LWGA8v9I9nCDjMVw9XBWP2hphtJwm7eSoqO:ckuItGuFgqw9NDhom9y

Malware Config

Extracted

Family

socks5systemz

C2

http://bxobeox.com/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6489f913c7e990

Signatures

  • Detect Socks5Systemz Payload 2 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 11 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 WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe
    "C:\Users\Admin\AppData\Local\Temp\548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\is-ER207.tmp\is-HQH9I.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ER207.tmp\is-HQH9I.tmp" /SL4 $80126 "C:\Users\Admin\AppData\Local\Temp\548ab8ae8f4bb83d0a55d05689e9695237882f567f25e72a5aac79b70845480a.exe" 3884359 52224
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe
        "C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe" -i
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2588
      • C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe
        "C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe" -s
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe

    Filesize

    4.0MB

    MD5

    946775ce8c497efe609c103fd8a6cce2

    SHA1

    35f874fc19f0860bfd79f7a5ea29f9ad773d3f2b

    SHA256

    97c73697356ea267b2cec652564e335c15859e876503b10de65efad0256f4587

    SHA512

    1a022d9f99f567c5444b9dce7d52bc9eb526c4f1b1a4d4f846f533c29533c78fbf09caa5c25e1a1394e974315ffb0cd3e15323b19722c05a274f91bd7c77f39b

  • \Users\Admin\AppData\Local\Temp\is-D7I7R.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-D7I7R.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • \Users\Admin\AppData\Local\Temp\is-D7I7R.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-ER207.tmp\is-HQH9I.tmp

    Filesize

    648KB

    MD5

    ba27acf39f1bc1f782b5ff3ffad2f527

    SHA1

    58da67551e533e5b22f8acc4178ebbeedc22b304

    SHA256

    c2a86a5d853d1e437993bbaf2243620265a840ce0d36e5bddecb801805911a7e

    SHA512

    c9fb586001f34059a10caf6c2d100c5b387c18482ac59400ec405c4849b041cdf6ae5fd9242e07ef7561f1d27f3b5709520cc0895303621625cbeac76ce77667

  • memory/2004-1-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2004-65-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2044-59-0x0000000003DE0000-0x00000000041EC000-memory.dmp

    Filesize

    4.0MB

  • memory/2044-44-0x0000000003DE0000-0x00000000041EC000-memory.dmp

    Filesize

    4.0MB

  • memory/2044-66-0x0000000000400000-0x00000000004B1000-memory.dmp

    Filesize

    708KB

  • memory/2440-94-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-107-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-131-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-126-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-60-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-61-0x0000000001310000-0x000000000171C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-62-0x0000000001310000-0x000000000171C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-64-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-123-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-120-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-67-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-70-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-71-0x0000000001310000-0x000000000171C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-72-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-75-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-78-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-81-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-84-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-85-0x0000000001100000-0x00000000011A2000-memory.dmp

    Filesize

    648KB

  • memory/2440-91-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-117-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-95-0x0000000001100000-0x00000000011A2000-memory.dmp

    Filesize

    648KB

  • memory/2440-98-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-101-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-104-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-114-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2440-111-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2588-53-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2588-48-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2588-49-0x0000000000E00000-0x000000000120C000-memory.dmp

    Filesize

    4.0MB

  • memory/2588-50-0x0000000000E00000-0x000000000120C000-memory.dmp

    Filesize

    4.0MB

  • memory/2588-51-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB

  • memory/2588-54-0x0000000000400000-0x000000000080C000-memory.dmp

    Filesize

    4.0MB