Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-01-2025 02:10

General

  • Target

    a6aace7b33a30c369b822426c1fba413bee4ac270aeb4bb88c0c7a69f5b0982d.exe

  • Size

    217KB

  • MD5

    bfa745b75a86416be496080c7eb199da

  • SHA1

    c665ae02bcda25e6f322cc805833c5a90f3f0791

  • SHA256

    a6aace7b33a30c369b822426c1fba413bee4ac270aeb4bb88c0c7a69f5b0982d

  • SHA512

    42089d4c07432c6561b52e45ea3d6c2eb0d466467e772d10a601c3af488210d25a87e9313b43d130e86b3baefab4f820fa7d96d09a0675f306008819889d263b

  • SSDEEP

    6144:trRaTyDOnlo7eM+mlkWgRXOqobzWjozm2ulYM6Y:dsTbzu1glovW4EH6Y

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\a6aace7b33a30c369b822426c1fba413bee4ac270aeb4bb88c0c7a69f5b0982d.exe
    "C:\Users\Admin\AppData\Local\Temp\a6aace7b33a30c369b822426c1fba413bee4ac270aeb4bb88c0c7a69f5b0982d.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:2792
    • 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:2316

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    217KB

    MD5

    edb215449f8f1d6ab9dc61659c9f82c4

    SHA1

    db65794805b2466e35357d110fca99dc404f8730

    SHA256

    8baa6773e757054e25be135fdbe2e9fdb1c151c3accc84ffba18bb0f2477e5f5

    SHA512

    c90f0f39ea71c7cb3806b91cffd825c6b8201066971ce8b6f04958c87b6716b25713176a8161cf45d0d5af59864980709e54cf7998a53e2c97156c4332495636

  • memory/2316-69-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-26-0x00000000021F0000-0x0000000002298000-memory.dmp

    Filesize

    672KB

  • memory/2316-21-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2316-22-0x00000000021F0000-0x0000000002298000-memory.dmp

    Filesize

    672KB

  • memory/2316-70-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-19-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2316-28-0x00000000021F0000-0x0000000002298000-memory.dmp

    Filesize

    672KB

  • memory/2316-32-0x00000000021F0000-0x0000000002298000-memory.dmp

    Filesize

    672KB

  • memory/2316-30-0x00000000021F0000-0x0000000002298000-memory.dmp

    Filesize

    672KB

  • memory/2316-33-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2316-68-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-24-0x00000000021F0000-0x0000000002298000-memory.dmp

    Filesize

    672KB

  • memory/2316-34-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-38-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-36-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-41-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-78-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-79-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-84-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-83-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-82-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-81-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-80-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-77-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-76-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-75-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-74-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-73-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-72-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-71-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-40-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-47-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-20-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2316-67-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-66-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-65-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-64-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-63-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-62-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-60-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-59-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-58-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-57-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-56-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-55-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-54-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-52-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-51-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-50-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-49-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-48-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-46-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-45-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-61-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-44-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-43-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-42-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2316-53-0x0000000002530000-0x00000000025E6000-memory.dmp

    Filesize

    728KB

  • memory/2792-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2792-1-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/2792-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2792-0-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2792-16-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/2792-15-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB