Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25-06-2024 12:36

General

  • Target

    ad80e50b5eca4f33a7c0d63650d737eb3b692efa9718ab7f4a4e928a632a188c.exe

  • Size

    4.9MB

  • MD5

    a4cd50a677e862225c2aec779c9c7f88

  • SHA1

    c44cc18f6789ad28969bc819c37ff14c862b7392

  • SHA256

    ad80e50b5eca4f33a7c0d63650d737eb3b692efa9718ab7f4a4e928a632a188c

  • SHA512

    111ffcc07f498daa0942e8af04e4928c57628bd3fcbee45b1c0b7c70ed52f9782859dfb70f8f1777870180b400e93f6c0d3a961522112e74bd1f87679cb06483

  • SSDEEP

    98304:mFE9Y3ZPi7o+FPXMMm1HoZdkLfxZOauL6Bt33nXFX/mhLqAbTIesZh5:WHqFFPXMMm6fkLfxZOWHVvMOAbTml

Malware Config

Extracted

Family

socks5systemz

C2

cerfdvj.net

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 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\ad80e50b5eca4f33a7c0d63650d737eb3b692efa9718ab7f4a4e928a632a188c.exe
    "C:\Users\Admin\AppData\Local\Temp\ad80e50b5eca4f33a7c0d63650d737eb3b692efa9718ab7f4a4e928a632a188c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1220
    • C:\Users\Admin\AppData\Local\Temp\is-6OHKQ.tmp\ad80e50b5eca4f33a7c0d63650d737eb3b692efa9718ab7f4a4e928a632a188c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6OHKQ.tmp\ad80e50b5eca4f33a7c0d63650d737eb3b692efa9718ab7f4a4e928a632a188c.tmp" /SL5="$60206,4881297,54272,C:\Users\Admin\AppData\Local\Temp\ad80e50b5eca4f33a7c0d63650d737eb3b692efa9718ab7f4a4e928a632a188c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4756
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4640
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:5032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

    Filesize

    3.0MB

    MD5

    87bb06621a3f40515430d26c0a96ebb2

    SHA1

    217b13f7191c2ae75f0379e8edbd8a3db39f6f4c

    SHA256

    0bcde402278a09938c6d16a2c4a179272c129ca9d4f4d94ea9c577bf6f9dc2e8

    SHA512

    7832708ebe720e8e4cb89d98c2e63dd8ab01e0f53803adfb178b105746044d66aa409aa8c3c9ee99bb2a43477d49a21408cc621fba65690b6d327ca4e2b2035c

  • C:\Users\Admin\AppData\Local\Temp\is-3D9S0.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-6OHKQ.tmp\ad80e50b5eca4f33a7c0d63650d737eb3b692efa9718ab7f4a4e928a632a188c.tmp

    Filesize

    680KB

    MD5

    74c7ea861dffe60403ce3ba60d41c098

    SHA1

    ee228a25407270f89659ae056f4b316ec415b3d7

    SHA256

    fc1991f3900c69a0fb2f85d164b3c45361665bdd3d0475b0557d84621d56fcd4

    SHA512

    e7a492e58dc71ac55838eb395022de3b4ba170a1b1411e958939aa8f3015aee6d310484ff5152b42bff1e0b857db105b170a9f133d840fe7fac4b081d4255fb4

  • memory/1220-70-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1220-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1220-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4640-59-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/4640-60-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/4640-65-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/4640-64-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/4756-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4756-71-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5032-72-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-91-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-67-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-75-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-76-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-79-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-82-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-85-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-86-0x0000000000A40000-0x0000000000AE2000-memory.dmp

    Filesize

    648KB

  • memory/5032-69-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-96-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-99-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-102-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-105-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-108-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-111-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-114-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB

  • memory/5032-117-0x0000000000400000-0x0000000000709000-memory.dmp

    Filesize

    3.0MB