Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/01/2025, 11:39

General

  • Target

    9b20be5bbd33815a0049cadc388dd05f258f2ee872a3f683c1eb9edd854567bfN.exe

  • Size

    218KB

  • MD5

    dcf73d3e53cd8c11458bfcdb05bcddc0

  • SHA1

    a941a8a176a9fa218532c5a357ce5195db8fd253

  • SHA256

    9b20be5bbd33815a0049cadc388dd05f258f2ee872a3f683c1eb9edd854567bf

  • SHA512

    bf02c5bf35aca1d01e653699b9f72dac1b68e1249dacb4a7e60be63c333a4788bff60612ba2daa3dd28b0617fdfe44280bc690ecb788b452fb462f074dad6bab

  • SSDEEP

    3072:Evm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:S1SyAJp6rjn1gOObn4b6h9h

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\9b20be5bbd33815a0049cadc388dd05f258f2ee872a3f683c1eb9edd854567bfN.exe
    "C:\Users\Admin\AppData\Local\Temp\9b20be5bbd33815a0049cadc388dd05f258f2ee872a3f683c1eb9edd854567bfN.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:1708
    • 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:1904

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Windows\AppPatch\svchost.exe

          Filesize

          218KB

          MD5

          636f60da1beeb8da5f08d21d2d24aec7

          SHA1

          d174dcbda75db6d6c52d962266a469e22b18f24f

          SHA256

          468b3900bcaf7926a6611232d4dfe3acbe6fd0c40da3d360095ad24622e0ca47

          SHA512

          e973daa484a6805a3bddb5fa54e74a369aa9262f122017b7905a1a7bf0ab9217835078b6ecd9a4eb9a3647a46cef3731a86a27ad3fcbbfdf0970648eb52ef036

        • memory/1708-0-0x0000000000280000-0x00000000002D1000-memory.dmp

          Filesize

          324KB

        • memory/1708-1-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/1708-17-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/1708-16-0x0000000000280000-0x00000000002D1000-memory.dmp

          Filesize

          324KB

        • memory/1708-15-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/1904-18-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/1904-19-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/1904-30-0x00000000005B0000-0x0000000000658000-memory.dmp

          Filesize

          672KB

        • memory/1904-28-0x00000000005B0000-0x0000000000658000-memory.dmp

          Filesize

          672KB

        • memory/1904-31-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/1904-26-0x00000000005B0000-0x0000000000658000-memory.dmp

          Filesize

          672KB

        • memory/1904-24-0x00000000005B0000-0x0000000000658000-memory.dmp

          Filesize

          672KB

        • memory/1904-22-0x00000000005B0000-0x0000000000658000-memory.dmp

          Filesize

          672KB

        • memory/1904-20-0x00000000005B0000-0x0000000000658000-memory.dmp

          Filesize

          672KB

        • memory/1904-32-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-34-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-36-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-40-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-47-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-84-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-83-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-82-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-81-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-80-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-78-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-77-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-76-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-75-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-74-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-73-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-72-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-71-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-70-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-69-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-67-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-66-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-65-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-64-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-63-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-62-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-61-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-60-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-59-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-58-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-57-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-56-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-55-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-54-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-52-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-51-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-50-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-48-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-46-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-45-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-79-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-44-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-68-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-43-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-42-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-53-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-41-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-49-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-39-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB

        • memory/1904-38-0x00000000025C0000-0x0000000002676000-memory.dmp

          Filesize

          728KB