Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16-06-2024 04:10

General

  • Target

    c617621879fff09bbe3df944921b7c7d8603d457d8ca36b9fd985bbaf936539d.exe

  • Size

    5.6MB

  • MD5

    7396d6836ab9525b6d00b9b55c43786a

  • SHA1

    eb11aafc8e92e71c8385d9730856bf85014811d2

  • SHA256

    c617621879fff09bbe3df944921b7c7d8603d457d8ca36b9fd985bbaf936539d

  • SHA512

    9d89be36679bdba69659b3447c70b7f17c2a4f704c72668b2b88969a6ddbe40ba49678f4a844fd139575f9d06ad1753135b980629143ed771e2920737c2a1107

  • SSDEEP

    98304:msphGeMVhaF1ef0YM47yAsTGJiJMxP4CIab+Xq2pcInf4tE75bkxekZSL3FOXLlb:3oVhYM0N419b+XrNf4+75buekZSLqJb

Malware Config

Extracted

Family

socks5systemz

C2

bhvoeob.com

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 3 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\c617621879fff09bbe3df944921b7c7d8603d457d8ca36b9fd985bbaf936539d.exe
    "C:\Users\Admin\AppData\Local\Temp\c617621879fff09bbe3df944921b7c7d8603d457d8ca36b9fd985bbaf936539d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Users\Admin\AppData\Local\Temp\is-EBRGT.tmp\c617621879fff09bbe3df944921b7c7d8603d457d8ca36b9fd985bbaf936539d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-EBRGT.tmp\c617621879fff09bbe3df944921b7c7d8603d457d8ca36b9fd985bbaf936539d.tmp" /SL5="$40202,5617659,54272,C:\Users\Admin\AppData\Local\Temp\c617621879fff09bbe3df944921b7c7d8603d457d8ca36b9fd985bbaf936539d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2340
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1036
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe
    Filesize

    3.2MB

    MD5

    8da82123a5a83686ac1897115c6bc4f8

    SHA1

    f31dd771d8352afe1a75803cee5488daf41bb98e

    SHA256

    05446e4f3a90119f7ad6de3aee4795d1a59b914ac7d18895d0c25a8fa082e52d

    SHA512

    0f832253926e99f47296172fdb0aa883887e4601da6bffeced63fc0bcf11a2206a557a49c00966d91f4373466b2643b7cb8bf183904e61df533494abc406d558

  • C:\Users\Admin\AppData\Local\Temp\is-EBRGT.tmp\c617621879fff09bbe3df944921b7c7d8603d457d8ca36b9fd985bbaf936539d.tmp
    Filesize

    680KB

    MD5

    a53cd7f9f154eefaf6ff191bb4d65be5

    SHA1

    f9f4f828e214a3f0b086dd4c96a23c0b45d3b4ff

    SHA256

    4b70003d8cca9ebf285e0eaa03e24dd7cfd43370452dda6047654cca899dfb35

    SHA512

    327c5dbb5a3971d578aba98e76ac176a7afe3cb6f6767b6791b67e7a37ed558c0e8d31e20f17721766a3de83896b01681f1564ce55a020c70543359b75f1e88d

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

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • memory/1036-70-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/1036-66-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/1036-65-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/1036-71-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2008-2-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/2008-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2008-76-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2340-77-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2340-22-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2960-91-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-78-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-97-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-102-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-82-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-85-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-88-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-75-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-123-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-73-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-81-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-105-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-108-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-111-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-114-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-117-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-120-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/2960-93-0x0000000000AE0000-0x0000000000B82000-memory.dmp
    Filesize

    648KB