Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 18:48

General

  • Target

    25208ab0683672a9d4c63e3a8ae3def66131fe7b6f560d9d5db0904ba6a8706fN.exe

  • Size

    355KB

  • MD5

    e24702f462209a54914da9e8a665e0b0

  • SHA1

    c6968be32548ab46cb85a6c9e26edc33728ee43a

  • SHA256

    25208ab0683672a9d4c63e3a8ae3def66131fe7b6f560d9d5db0904ba6a8706f

  • SHA512

    70f3cd8a90b2a167bb7791438aa79471da9fce6f2b935d4bbe564bcd739c3b5529d49b9136b51d113a1aa88c69e039876563559dc6980b1ea493a311deea011e

  • SSDEEP

    6144:I3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiS:TmWhND9yJz+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

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25208ab0683672a9d4c63e3a8ae3def66131fe7b6f560d9d5db0904ba6a8706fN.exe
    "C:\Users\Admin\AppData\Local\Temp\25208ab0683672a9d4c63e3a8ae3def66131fe7b6f560d9d5db0904ba6a8706fN.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:4272
    • 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:4332

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\B45.tmp

          Filesize

          593B

          MD5

          926512864979bc27cf187f1de3f57aff

          SHA1

          acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

          SHA256

          b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

          SHA512

          f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

        • C:\Users\Admin\AppData\Local\Temp\C7D4.tmp

          Filesize

          24KB

          MD5

          b984dcf6f0067b333d183d4cfba1e564

          SHA1

          6177f2ea009b6845e6fc90e9a840a0a0e0bdf2d3

          SHA256

          63c3b1164414355ae7a464cdf611f23de6c21c5ab92acff5cbe360460cf5cf5f

          SHA512

          4edb8c06cdc61a3b61aca74a76f74c897460da4ec80b95fb6c46222b2636eec34ed84e7ff534fb6fd85014cf6e6a23506de76e15cf71e68abef2cd1f0af3c377

        • C:\Windows\apppatch\svchost.exe

          Filesize

          355KB

          MD5

          dcb6238a3dce022abf10cba8604a205a

          SHA1

          ac036856fa84382e2d7a3929954fda0618109429

          SHA256

          cd0f72214bb89a6f3a20d08160774bdeeb6ec2cff806db63b301b9c140f6df99

          SHA512

          2526b8b3deb29e0c5c76f8514bd784e8776aba018c53d31b993d13a760103626359c2e5d430926b9e9e50ec3c82675656aefcdcd966d1c65bde0f11941b2f53e

        • memory/4272-8-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/4332-10-0x0000000002720000-0x00000000027C8000-memory.dmp

          Filesize

          672KB

        • memory/4332-11-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-15-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-13-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/4332-164-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB