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Analysis

  • max time kernel
    112s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2024, 22:20

General

  • Target

    f985f60c3ea1e63821104ccea42781087ef4282d16777d0013a4eb5d736a4d9a.exe

  • Size

    355KB

  • MD5

    427e0c3fb6f26883ae42309e44c0c0b7

  • SHA1

    abbafbb4e90b3893002cf93b8f6b88a504210e62

  • SHA256

    f985f60c3ea1e63821104ccea42781087ef4282d16777d0013a4eb5d736a4d9a

  • SHA512

    f78b77eda0857cdcb74462bdaacabb999082360324398a62666fd0dbed3009ff71ca70de7324291577a634a13c9fb2b5437dc70c7308a692a0da7354df7ea241

  • SSDEEP

    6144:V3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiC:6mWhND9yJz+b1FcMLmp2ATTSsdC

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\f985f60c3ea1e63821104ccea42781087ef4282d16777d0013a4eb5d736a4d9a.exe
    "C:\Users\Admin\AppData\Local\Temp\f985f60c3ea1e63821104ccea42781087ef4282d16777d0013a4eb5d736a4d9a.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:2100
    • 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:2320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\8DC4.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\DB33.tmp

    Filesize

    24KB

    MD5

    9f6a6c86138dd56da46de99664caba98

    SHA1

    d6e764b766f989b2184db84e26d2998fb7219898

    SHA256

    ff9c6ac65115b43f3ce96d46d8bb70f2b98423aecee9417388f5b1e93c9c6ed3

    SHA512

    55dee3d395b34cc8167db0eca872cac28fcc591f45832d134de5de0274125b17213cbd925322eb281686eaf68f24c50a1f0be28c4f0523a82ac80884c21fbe32

  • \Windows\AppPatch\svchost.exe

    Filesize

    355KB

    MD5

    3c06dffe67fbae9b6df4f9c93b0edbcc

    SHA1

    b045630df9b740ee2c084fd76ff50ef413554165

    SHA256

    5f45c19f7e1fb3903b267b6eb70e2b15aee4f357fc04143f984001d8ba0c9e2b

    SHA512

    4e15aa9bf54ae9aa62b2fbd53cdd20e4db2cf0ae227e8eeacd0e35c6eb1b7080ea2ca96d5910911c5fc63d6f123f36cae538a832fb231dd081a7ae8caa3fedfe

  • memory/2100-12-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2320-16-0x00000000006A0000-0x0000000000748000-memory.dmp

    Filesize

    672KB

  • memory/2320-24-0x00000000006A0000-0x0000000000748000-memory.dmp

    Filesize

    672KB

  • memory/2320-22-0x00000000006A0000-0x0000000000748000-memory.dmp

    Filesize

    672KB

  • memory/2320-20-0x00000000006A0000-0x0000000000748000-memory.dmp

    Filesize

    672KB

  • memory/2320-14-0x00000000006A0000-0x0000000000748000-memory.dmp

    Filesize

    672KB

  • memory/2320-18-0x00000000006A0000-0x0000000000748000-memory.dmp

    Filesize

    672KB

  • memory/2320-25-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-27-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-29-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-36-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-44-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-61-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-77-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-76-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-75-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-74-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-73-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-72-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-71-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-69-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-68-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-67-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-66-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-65-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-64-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-63-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-62-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-60-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-59-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-58-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-57-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-56-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-55-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-54-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-53-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-52-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-51-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-50-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-49-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-48-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-70-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-47-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-46-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-43-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-42-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-41-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-40-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-39-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-38-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-37-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-45-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-35-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-34-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-33-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-32-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-31-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB

  • memory/2320-180-0x00000000023F0000-0x00000000024A6000-memory.dmp

    Filesize

    728KB