Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
  • 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:2380
    • 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:1696

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\A05A.tmp

          Filesize

          42KB

          MD5

          12659815200bfa44ffbb2d67a3a4c53e

          SHA1

          03c5eadb31b51c9c6b2ecd230dd2fa1dcf053216

          SHA256

          2584e0e361c7a1342b82bb435e9c77bdde5d76c5093758d88cbae799a37ca10a

          SHA512

          2792025cd23ab6c15a20d3e8d80c4b9aa73fd8ff09321fd3f8c9801676c9ed3d54c1a1cf4e99cc084dc5267d0459e9f3a66399c76084bd007ee4414b4f61b59a

        • C:\Users\Admin\AppData\Local\Temp\CA17.tmp

          Filesize

          593B

          MD5

          926512864979bc27cf187f1de3f57aff

          SHA1

          acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

          SHA256

          b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

          SHA512

          f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

        • \Windows\AppPatch\svchost.exe

          Filesize

          355KB

          MD5

          855a93b789e28535e2b0c49d41cb90a5

          SHA1

          06850df00386cf4ca1fd1aa19fa8976295c0481c

          SHA256

          e9377fdbe023a6f9e5509ff46a3737f53fc97c88418e0d240efc077322568738

          SHA512

          86d179c299b244b77bff3776d22fb2d7a5375e504b61bf32e1c7d6cb3963a7cf3efb0747920d127f6feb993e145536a935c35aa7b29dfbe5b9d7fa48772292de

        • memory/1696-14-0x0000000002260000-0x0000000002308000-memory.dmp

          Filesize

          672KB

        • memory/1696-16-0x0000000002260000-0x0000000002308000-memory.dmp

          Filesize

          672KB

        • memory/1696-18-0x0000000002260000-0x0000000002308000-memory.dmp

          Filesize

          672KB

        • memory/1696-24-0x0000000002260000-0x0000000002308000-memory.dmp

          Filesize

          672KB

        • memory/1696-22-0x0000000002260000-0x0000000002308000-memory.dmp

          Filesize

          672KB

        • memory/1696-20-0x0000000002260000-0x0000000002308000-memory.dmp

          Filesize

          672KB

        • memory/1696-25-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-27-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-29-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-35-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-34-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-33-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-32-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-31-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-77-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-76-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-75-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-74-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-73-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-72-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-71-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-70-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-69-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-68-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-67-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-66-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-64-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-63-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-62-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-61-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-60-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-59-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-58-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-57-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-56-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-55-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-54-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-53-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-52-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-51-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-50-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-48-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-47-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-46-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-45-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-44-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-43-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-42-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-41-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-39-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-38-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-37-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-36-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-65-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-49-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-40-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/1696-194-0x0000000002410000-0x00000000024C6000-memory.dmp

          Filesize

          728KB

        • memory/2380-13-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB