Analysis

  • max time kernel
    146s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    05-01-2025 05:48

General

  • Target

    cb11342d834d8376429d0add1203095e41a9d000893d61370464fa553bc85ccf.exe

  • Size

    355KB

  • MD5

    a01d2897b84fbb29166af60611c8e12e

  • SHA1

    0ece2d626a851fcf3eaa65cd9bdd9d23e078453f

  • SHA256

    cb11342d834d8376429d0add1203095e41a9d000893d61370464fa553bc85ccf

  • SHA512

    5ab8d0e20bcd18c1f2ade94388a8d088d5b6425c627bca740d3b2ec64a79ef56bce94fbe3c193e4548030749a23a21e9cdb58ee90c7d0e3ec37f7f1794667c36

  • SSDEEP

    6144:G3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiS:RmWhND9yJz+b1FcMLmp2ATTSsdS

Malware Config

Extracted

Family

simda

Attributes
  • dga

    gatyfus.com

    lyvyxor.com

    vojyqem.com

    qetyfuv.com

    puvyxil.com

    gahyqah.com

    lyryfyd.com

    vocyzit.com

    qegyqaq.com

    purydyv.com

    gacyzuz.com

    lygymoj.com

    vowydef.com

    qexylup.com

    pufymoq.com

    gaqydeb.com

    lyxylux.com

    vofymik.com

    qeqysag.com

    puzylyp.com

    gadyniw.com

    lymysan.com

    volykyc.com

    qedynul.com

    pumypog.com

    galykes.com

    lysynur.com

    vonypom.com

    qekykev.com

    pupybul.com

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb11342d834d8376429d0add1203095e41a9d000893d61370464fa553bc85ccf.exe
    "C:\Users\Admin\AppData\Local\Temp\cb11342d834d8376429d0add1203095e41a9d000893d61370464fa553bc85ccf.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2368

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\AppPatch\svchost.exe

    Filesize

    355KB

    MD5

    8e75e30989ba94877b1f3e1180b6eda1

    SHA1

    0b4e07698342c90c37d4d17ef47c60436901f25f

    SHA256

    f33a4b1d36a0e8072784759c7b2cdf2a3629ea55868b7f317b6a037d76546643

    SHA512

    ac3c865fd899ad5f84a51d31076b0a76e9950e1b7feaa7229747eedabf2ee7f87565045b05e4ab296e75d99b7b9a7111029a1a402d3e6e752ec1bcd260c5a084

  • memory/1504-13-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2368-14-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/2368-18-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/2368-24-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/2368-22-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/2368-20-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/2368-16-0x00000000021C0000-0x0000000002268000-memory.dmp

    Filesize

    672KB

  • memory/2368-25-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-30-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-29-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-27-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-40-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-78-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-77-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-76-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-75-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-74-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-73-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-72-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-71-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-70-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-69-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-68-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-67-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-66-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-65-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-64-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-63-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-62-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-61-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-60-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-59-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-57-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-56-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-55-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-54-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-53-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-52-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-51-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-50-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-49-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-48-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-47-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-46-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-45-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-44-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-43-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-42-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-41-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-39-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-38-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-58-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-37-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-36-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-35-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-34-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-32-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-33-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2368-191-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB