Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    19-12-2024 01:08

General

  • Target

    8b3740defa75530f1caaedd89eb4e11be9052cd0b8a7af2fa8369a61ccb2d37f.exe

  • Size

    218KB

  • MD5

    8cbda4f1dbf688da1f76075594b62574

  • SHA1

    93c35550755c08c1e51d233ccea649b7bd2a8783

  • SHA256

    8b3740defa75530f1caaedd89eb4e11be9052cd0b8a7af2fa8369a61ccb2d37f

  • SHA512

    9bf38560a6a9b4dcc5a2a00bb9a6f33763282e5f4abe30ea4184147011a6336435a4186205c3b4bdea3cbea71750c505ee1719771a9fd57800dc3c00f7b56872

  • SSDEEP

    3072:Xvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2Hu:f1SyAJp6rjn1gOObn4b6h9L

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 57 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b3740defa75530f1caaedd89eb4e11be9052cd0b8a7af2fa8369a61ccb2d37f.exe
    "C:\Users\Admin\AppData\Local\Temp\8b3740defa75530f1caaedd89eb4e11be9052cd0b8a7af2fa8369a61ccb2d37f.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:2140
    • 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:2160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CC76.tmp

    Filesize

    42KB

    MD5

    b66bc6f4a9aff4835e9ae09ba568e85e

    SHA1

    edbde7e3d386b0a03e407a3c9b89fcd7266f5639

    SHA256

    332605d8a021fdb87ede5a98f7aef1a812374695ffc9dabe8c0b69492c74c0d6

    SHA512

    65151040796a4a6fc580b1c0bbc07ee171ebc9fe06d0565f475913675555175ad325e74d59785a90d5e1590b2eec2edca51f83aca4060601d7c9c1071e20e171

  • C:\Users\Admin\AppData\Local\Temp\D0B2.tmp

    Filesize

    1KB

    MD5

    3818232a8bc92232849cbc24df200f73

    SHA1

    2aee617110ab5c77593389e41556cf8c95c74349

    SHA256

    1b9bb82098835a7f9df4723dbe78eb078328a527d4f2026a7193074748c68cd5

    SHA512

    10b2250a204e2b5b830779a0db2b771931f8baab7b5e0a2e7b068c1adc6e93a8ca13a52fa39dfcdf5043a4e36a63c0dd5e27f379f47e01e5211063e1fd85b2e8

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    30fd3518239f51e086577f4802fa1a5e

    SHA1

    4a8c19006c283c9218d745c97736a36ec9ff9595

    SHA256

    9ea2c95f7fa9c29926c57db7803baddff10501d0bc01409215439842b0e34900

    SHA512

    b661b534fee8d4d058428a539bd70a3afa1aba49fcaa2ab2435defaf3aedab1cadfc9ad2e76185dcb4063d47ee41259bbacf681baf536748e000d4300bc305fb

  • memory/2140-0-0x0000000001FF0000-0x0000000002041000-memory.dmp

    Filesize

    324KB

  • memory/2140-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2140-16-0x0000000001FF0000-0x0000000002041000-memory.dmp

    Filesize

    324KB

  • memory/2140-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2140-14-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2160-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2160-19-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2160-20-0x0000000002370000-0x0000000002418000-memory.dmp

    Filesize

    672KB

  • memory/2160-26-0x0000000002370000-0x0000000002418000-memory.dmp

    Filesize

    672KB

  • memory/2160-30-0x0000000002370000-0x0000000002418000-memory.dmp

    Filesize

    672KB

  • memory/2160-24-0x0000000002370000-0x0000000002418000-memory.dmp

    Filesize

    672KB

  • memory/2160-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2160-22-0x0000000002370000-0x0000000002418000-memory.dmp

    Filesize

    672KB

  • memory/2160-28-0x0000000002370000-0x0000000002418000-memory.dmp

    Filesize

    672KB

  • memory/2160-32-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-34-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-36-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-38-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-43-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-49-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-48-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-47-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-73-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-46-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-45-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-70-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-44-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-67-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-42-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-41-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-40-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-39-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-50-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-84-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-83-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-82-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-81-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-80-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-79-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-78-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-77-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-76-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-75-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-74-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-72-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-71-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-69-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-68-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-66-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-65-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-64-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-63-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-62-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-61-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-60-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-59-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-58-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-57-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-56-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-55-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-54-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-53-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-52-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB

  • memory/2160-51-0x0000000002520000-0x00000000025D6000-memory.dmp

    Filesize

    728KB