Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16-06-2024 05:39

General

  • Target

    ab3a6046cfccd3ffe100fab8fe698ed088aa22d040b90b1fb333185c11d25dcf.exe

  • Size

    5.6MB

  • MD5

    04b69a16cdb8b9845b9068a64969918c

  • SHA1

    41d3b550cb8020dcfc8532f04d41f5366cdaf3b7

  • SHA256

    ab3a6046cfccd3ffe100fab8fe698ed088aa22d040b90b1fb333185c11d25dcf

  • SHA512

    fb3f22e4f01b47021b82076d14070c5465fc0e90cf6fd9301382c0a35affca9a961ca00c49299800db662c7bd844123bc39556b6e68044e16f0937b21fbb2ca8

  • SSDEEP

    98304:ml5uTkgRARNV8Sxt5+MJyHFzcIQkWfCyKF18ergTHfhI4TECQDkj27:E5uTQT84TSZw0lu/iaEC6k67

Malware Config

Extracted

Family

socks5systemz

C2

aannsgz.ru

http://aannsgz.ru/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff714c1e991993a

http://aannsgz.ru/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12eab517aa5c96bd86ec94874a855a8bbc896c58e713bc90c91b36b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9f3acb6b9517

Signatures

  • Detect Socks5Systemz Payload 3 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\ab3a6046cfccd3ffe100fab8fe698ed088aa22d040b90b1fb333185c11d25dcf.exe
    "C:\Users\Admin\AppData\Local\Temp\ab3a6046cfccd3ffe100fab8fe698ed088aa22d040b90b1fb333185c11d25dcf.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:456
    • C:\Users\Admin\AppData\Local\Temp\is-AUBLK.tmp\ab3a6046cfccd3ffe100fab8fe698ed088aa22d040b90b1fb333185c11d25dcf.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-AUBLK.tmp\ab3a6046cfccd3ffe100fab8fe698ed088aa22d040b90b1fb333185c11d25dcf.tmp" /SL5="$7022E,5664025,54272,C:\Users\Admin\AppData\Local\Temp\ab3a6046cfccd3ffe100fab8fe698ed088aa22d040b90b1fb333185c11d25dcf.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4700
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4052
      • C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe
        "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage.exe" -s
        3⤵
        • Executes dropped EXE
        PID:5020

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    3.2MB

    MD5

    bfc2c6f91c5001609330b5e93e942e5c

    SHA1

    3a594b3710388f0fdb8cd5b743543fdab36451e8

    SHA256

    449a00b7c25b701881afd8796bd8317343531545222a2e26fd82fc74a9d717fe

    SHA512

    32d3d8cb0f44ce16207e3006e0a387124f5ee4a2e619c7ba7464eeaee0161012d933fc1b9efc43f97872cdc2de213a13d1de4627314e079b2255683b16a03899

  • C:\Users\Admin\AppData\Local\Temp\is-AUBLK.tmp\ab3a6046cfccd3ffe100fab8fe698ed088aa22d040b90b1fb333185c11d25dcf.tmp
    Filesize

    680KB

    MD5

    a53cd7f9f154eefaf6ff191bb4d65be5

    SHA1

    f9f4f828e214a3f0b086dd4c96a23c0b45d3b4ff

    SHA256

    4b70003d8cca9ebf285e0eaa03e24dd7cfd43370452dda6047654cca899dfb35

    SHA512

    327c5dbb5a3971d578aba98e76ac176a7afe3cb6f6767b6791b67e7a37ed558c0e8d31e20f17721766a3de83896b01681f1564ce55a020c70543359b75f1e88d

  • C:\Users\Admin\AppData\Local\Temp\is-OCRP0.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-OCRP0.tmp\_isetup\_isdecmp.dll
    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • memory/456-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/456-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/456-75-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/4052-65-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/4052-66-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/4052-71-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/4052-69-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/4700-18-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4700-76-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/5020-77-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-102-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-80-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-83-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-86-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-89-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-90-0x00000000025B0000-0x0000000002652000-memory.dmp
    Filesize

    648KB

  • memory/5020-93-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-99-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-74-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-105-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-108-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-111-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-114-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-115-0x00000000025B0000-0x0000000002652000-memory.dmp
    Filesize

    648KB

  • memory/5020-116-0x00000000025B0000-0x0000000002652000-memory.dmp
    Filesize

    648KB

  • memory/5020-120-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB

  • memory/5020-123-0x0000000000400000-0x0000000000742000-memory.dmp
    Filesize

    3.3MB