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
    19/09/2024, 14:11

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
  • 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\25208ab0683672a9d4c63e3a8ae3def66131fe7b6f560d9d5db0904ba6a8706fN.exe
    "C:\Users\Admin\AppData\Local\Temp\25208ab0683672a9d4c63e3a8ae3def66131fe7b6f560d9d5db0904ba6a8706fN.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:2092
    • 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:2960

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\A465.tmp

          Filesize

          481B

          MD5

          9560ff959c6cab1d28b80541e24e4d39

          SHA1

          1f27afb2868023f678465efe00e8897a09c357cd

          SHA256

          f604f5363f6a345a1a0360e00e4cbb8f531cb7f81d569f956637d58ede403503

          SHA512

          685de6f66a4457c4c21765832e6e4d441a67d31ab42cf9cff042ab7c46737a2af3e7cd08d3fed732655bd272b07283ab2f4125f165d03b71d9ccc08cbc0dd84e

        • \Windows\AppPatch\svchost.exe

          Filesize

          355KB

          MD5

          9c17dbca491af6b2559574b3cdff0c79

          SHA1

          853045c615cb9117903435af771bc3f279e37a2e

          SHA256

          a09c23421124a79138b3d1b6a4a2b2e516fd46e472d0e56a66ca400ccca4496a

          SHA512

          12715fc5c3b403a058ea970ca76516599d97bde425f24505b45784224dfa238d63f4e3f295d5b096a765b041d1a357b5ae48a8758e1be1c8882e978fe2b768de

        • memory/2092-12-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2960-16-0x00000000021D0000-0x0000000002278000-memory.dmp

          Filesize

          672KB

        • memory/2960-24-0x00000000021D0000-0x0000000002278000-memory.dmp

          Filesize

          672KB

        • memory/2960-22-0x00000000021D0000-0x0000000002278000-memory.dmp

          Filesize

          672KB

        • memory/2960-20-0x00000000021D0000-0x0000000002278000-memory.dmp

          Filesize

          672KB

        • memory/2960-18-0x00000000021D0000-0x0000000002278000-memory.dmp

          Filesize

          672KB

        • memory/2960-14-0x00000000021D0000-0x0000000002278000-memory.dmp

          Filesize

          672KB

        • memory/2960-25-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-29-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-27-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-36-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-35-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-72-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-77-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-76-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-75-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-73-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-71-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-70-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-69-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-68-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-67-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-66-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-65-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-64-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-62-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-61-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-60-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-59-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-58-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-57-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-56-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-55-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-54-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-52-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-51-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-50-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-49-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-48-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-47-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-46-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-45-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-44-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-42-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-41-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-40-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-39-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-38-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-37-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-74-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-63-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-34-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-53-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-33-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-32-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-43-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-31-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB

        • memory/2960-195-0x0000000002380000-0x0000000002436000-memory.dmp

          Filesize

          728KB