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Analysis

  • max time kernel
    111s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/12/2024, 04:15

General

  • Target

    54a3e93fba62daa15b0a3b937da2ce853ecab8e5b863c6f5818b3dbaf2fae0fd.exe

  • Size

    218KB

  • MD5

    59b7bee08b93fc653dd5ca7b97f5dcb6

  • SHA1

    b19654c8d982fffc994bfc9ca69a958e20e0e577

  • SHA256

    54a3e93fba62daa15b0a3b937da2ce853ecab8e5b863c6f5818b3dbaf2fae0fd

  • SHA512

    5ffbf6bb29c6d4d532ec4ad7c854426023f45be703bb817119c5345a3bde0be2aca2d3c22ffc2ed0f273cb5f5731de76174020aeeb58e372660197df84ce96da

  • SSDEEP

    6144:YEQBDdO1z7L/EIhZDE9oLfFWlMZT7+DGaMwICy:YEGDdQNHEwWlMxYG/wIz

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
  • 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\54a3e93fba62daa15b0a3b937da2ce853ecab8e5b863c6f5818b3dbaf2fae0fd.exe
    "C:\Users\Admin\AppData\Local\Temp\54a3e93fba62daa15b0a3b937da2ce853ecab8e5b863c6f5818b3dbaf2fae0fd.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:4988
    • 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:628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TRPPE7V2\login[5].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\3A75.tmp

    Filesize

    61KB

    MD5

    eb8210947b8752aa15bd0ce4c9171511

    SHA1

    6b072e3019cdca284d1f548abd6dc81a0b75f660

    SHA256

    4b1caf1ed291c7a19dc0b32a05300d861b61c1dab9dc1a3e87daee5d99e18edb

    SHA512

    5e36cae9e9e60527190f6ba6a2b9be4596c725871f8504c8df3ca43d1d1e66e96d884ab5d50b70a457b910271ce919bfb7ca3366866688ec5c8fc83ea475c7a7

  • C:\Users\Admin\AppData\Local\Temp\3A88.tmp

    Filesize

    42KB

    MD5

    984d75dc11d3f2be962a26eabe93758c

    SHA1

    95ec4029a502756a68cb08d6c0e3a002acfd435b

    SHA256

    8b2ce630182cca77da00148c9437522d8305a0dd8cbc7e2855136d41126ea41a

    SHA512

    c07eada59c9e983aa43fe89a94d4120c8fb64e50b81032242b2cc260fcf90479e22d803408c9b14b9a27d9729f280b6844dee78bd23762077cfa81a43b081029

  • C:\Users\Admin\AppData\Local\Temp\6ACE.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\71F5.tmp

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Temp\71F5.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\7F87.tmp

    Filesize

    61KB

    MD5

    b1e71bdba2864077903538906636490c

    SHA1

    ddf97a7d2d0791183d9e5172476b324bcc9a315f

    SHA256

    1baae54357e764780f6e0e1df4b60772845e8fc912d8064954626c6594b68f3f

    SHA512

    89c309139bc6d676ebd0003849f3c4c086cb97bab91a660998dac6909690c78d8262febc73e885381cf4346ca3c8d54f22b40fc868b6d3519ca501241648ce1c

  • C:\Users\Admin\AppData\Local\Temp\B8E6.tmp

    Filesize

    1KB

    MD5

    5cbc875e9d492fc87aa4b1ab197eb047

    SHA1

    2f5ea13fe6af9bd37807847d1466dc574ad2d6fc

    SHA256

    505baac7e855916924e1834ab4bf0c94dd90617f0040d0c4304412364ce426a3

    SHA512

    bcfef6dccd2d139eee61f0edea0079c301809685edcb4891d6719a0225425f019b0c90a1bc4d74320b0d6f4255d16a3fcb33e4cdeb188d8410e31fdf6b8260e3

  • C:\Windows\apppatch\svchost.exe

    Filesize

    218KB

    MD5

    eae06a05684a8ec91a7e97135bc00c53

    SHA1

    da705746f96de008aebbf5961836519bd86cba61

    SHA256

    317f233b7750c37ca757d177bab98b4c801174c5ce14496a133cbb6b8216b379

    SHA512

    a7f52bd2ad2902ef7e02223a3001e3109ef8259f18c1b145d7c926b2d0fff99e8ad8fe0861a75cac4166817affdd81cfd5440a2611405b891890927d5f6f9e69

  • memory/628-54-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-47-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-20-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-75-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-64-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-79-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-78-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-77-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-76-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-74-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-73-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-72-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-71-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-24-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-70-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-69-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-68-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-67-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-66-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-65-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-63-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-62-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-61-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-60-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-59-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-58-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-57-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-56-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-55-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-19-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/628-53-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-51-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-50-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-49-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-48-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-22-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-46-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-45-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-44-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-43-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-41-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-38-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-37-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-36-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-35-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-34-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-33-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-32-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-31-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-30-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-28-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-27-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-26-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-25-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-52-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-42-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-40-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-39-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-29-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/628-15-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/628-16-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/628-17-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/628-18-0x0000000002C00000-0x0000000002CA8000-memory.dmp

    Filesize

    672KB

  • memory/4988-0-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/4988-1-0x0000000002420000-0x0000000002471000-memory.dmp

    Filesize

    324KB

  • memory/4988-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4988-14-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4988-13-0x0000000002420000-0x0000000002471000-memory.dmp

    Filesize

    324KB

  • memory/4988-11-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB