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Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/12/2024, 02:08

General

  • Target

    b035f18254ca7e1e0c8be3fc4054684255ed0323d46d7bd8526ce47179035513.exe

  • Size

    208KB

  • MD5

    454f470d2af020d49ad439519140ab2f

  • SHA1

    8a590245c56f36faac768da2ff6bc19626298efc

  • SHA256

    b035f18254ca7e1e0c8be3fc4054684255ed0323d46d7bd8526ce47179035513

  • SHA512

    ee099f5ac1a0a27dc1768d4ae79bda0899f1d6190fd279152cf562ca2fcd65d3fee48ccc30760763270317dd4159ba2e0ad7d3ac86344e557ba0c21cb43e30f4

  • SSDEEP

    6144:mZWia9ubuBsyGvMwlvaB8Mi5vz9IGePA+hq5:EquCuygMQjd5vJIBP1

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

  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in Program Files directory 17 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b035f18254ca7e1e0c8be3fc4054684255ed0323d46d7bd8526ce47179035513.exe
    "C:\Users\Admin\AppData\Local\Temp\b035f18254ca7e1e0c8be3fc4054684255ed0323d46d7bd8526ce47179035513.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Low\IE\70ZI73VW\login[2].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Low\IE\RCTPN2K6\login[2].htm

    Filesize

    168B

    MD5

    d57e3a550060f85d44a175139ea23021

    SHA1

    2c5cb3428a322c9709a34d04dd86fe7628f8f0a6

    SHA256

    43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c

    SHA512

    0364fe6a010fce7a3f4a6344c84468c64b20fd131f3160fc649db78f1075ba52d8a1c4496e50dbe27c357e01ee52e94cdcda8f7927cba28d5f2f45b9da690063

  • C:\Windows\apppatch\svchost.exe

    Filesize

    208KB

    MD5

    1b3d766f68608bc9b86e52762b8bd68c

    SHA1

    12144e6eefebc9f68f6e2761a749e2c0121cc974

    SHA256

    ebdd8bb325e641d58c3e63e290e457dcf9d350ba5018945506bece0488ad0542

    SHA512

    184fa326265fd105ad47b6322b06f00ac4c1ae356a74bb1f6d1756aa5a80ce6351d75d6e1221627a8f14da8a35ab14e442afbc98cc5d52d6d23bb9541bd99c77

  • memory/1544-58-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-56-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-14-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/1544-15-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/1544-28-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-36-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-21-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/1544-22-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-26-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-24-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-27-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-41-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-81-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-80-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-79-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-78-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-77-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-76-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-75-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-74-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-72-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-71-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-70-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-68-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-69-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-67-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-66-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-64-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-65-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-63-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-62-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-61-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-59-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-55-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-20-0x0000000002A40000-0x0000000002AEA000-memory.dmp

    Filesize

    680KB

  • memory/1544-57-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-19-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/1544-54-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-53-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-52-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-51-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-50-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-49-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-47-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-46-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-45-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-44-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-43-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-42-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-40-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-39-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-38-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-34-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-35-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-32-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-33-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-31-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-30-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-29-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-73-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-60-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-48-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/1544-37-0x0000000002BF0000-0x0000000002CA7000-memory.dmp

    Filesize

    732KB

  • memory/5048-17-0x0000000002230000-0x0000000002282000-memory.dmp

    Filesize

    328KB

  • memory/5048-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/5048-1-0x0000000002230000-0x0000000002282000-memory.dmp

    Filesize

    328KB

  • memory/5048-0-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/5048-18-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/5048-16-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB