Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2024 00:39

General

  • Target

    757192e9a216b31e048629f52836ef9d1be816100c1bc2302b0e7cb4d9eb4cbb.exe

  • Size

    686KB

  • MD5

    41c31496673aea407cff26affb85474e

  • SHA1

    b5aab9914abf40b12da28b2b06c7b245fe384217

  • SHA256

    757192e9a216b31e048629f52836ef9d1be816100c1bc2302b0e7cb4d9eb4cbb

  • SHA512

    c6c8723c420ed59d1edd29af44d3563a9c07efe56b61db6c7e67ee19643ce76b9826f7336ff19704874b1152b235e67e8a6df7c1011462ee9430a6ecb5eb1cfe

  • SSDEEP

    12288:vmWhND9yJz+b1FcMLmp2ATTSsdApVHyGbs2CYPHrLpVmCbHDSgp:vmUNJyJqb1FcMap2ATT5itjCYZ3DSo

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\757192e9a216b31e048629f52836ef9d1be816100c1bc2302b0e7cb4d9eb4cbb.exe
    "C:\Users\Admin\AppData\Local\Temp\757192e9a216b31e048629f52836ef9d1be816100c1bc2302b0e7cb4d9eb4cbb.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:3028
    • 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:2516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\706B.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\91B8.tmp

    Filesize

    481B

    MD5

    0e3e09d7c1485a237031df7ff269a778

    SHA1

    d122fc03e38aea385b5e814de5a08a2637b1f136

    SHA256

    85371922fda85da171856fdffdef5f5d34b5bc8283302dfb11959f840cb77f5a

    SHA512

    087b2fe5d4701156bc429271bbde52b901ef5047f624253da94e7b004d090d172bff829da8f096c1a75d21f5190ce5eb829d6277921a8846bc88269466779d2e

  • \Windows\AppPatch\svchost.exe

    Filesize

    686KB

    MD5

    a6d6ba74ae66cc005b7a3c612df6f678

    SHA1

    8fc4c201195e3ec36d031c9f86aad6db435e8068

    SHA256

    b8a7a292afb85fd7684479652493f0ef2a63d8f3b165fdbce789e6adbeab2c4d

    SHA512

    d242dbbe0a5bf70b7b9fe4d3b55a3b697f246ea2ebc7e0a1a96f11c59f5d243eb9d02c8decde48318b8bb4ab2e86a5fc737f824ad52e0ecc3458e15d00999af4

  • memory/2516-24-0x00000000020C0000-0x0000000002168000-memory.dmp

    Filesize

    672KB

  • memory/2516-22-0x00000000020C0000-0x0000000002168000-memory.dmp

    Filesize

    672KB

  • memory/2516-20-0x00000000020C0000-0x0000000002168000-memory.dmp

    Filesize

    672KB

  • memory/2516-18-0x00000000020C0000-0x0000000002168000-memory.dmp

    Filesize

    672KB

  • memory/2516-16-0x00000000020C0000-0x0000000002168000-memory.dmp

    Filesize

    672KB

  • memory/2516-14-0x00000000020C0000-0x0000000002168000-memory.dmp

    Filesize

    672KB

  • memory/2516-27-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-30-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-28-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-37-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-50-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-75-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-79-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-78-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-77-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-76-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-74-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-73-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-72-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-71-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-70-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-69-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-68-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-67-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-66-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-64-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-63-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-62-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-61-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-60-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-59-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-58-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-57-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-56-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-55-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-54-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-53-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-52-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-51-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-49-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-47-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-46-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-45-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-44-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-43-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-42-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-65-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-41-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-40-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-39-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-38-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-48-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-36-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-32-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-35-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-34-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-33-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB

  • memory/2516-197-0x0000000002400000-0x00000000024B6000-memory.dmp

    Filesize

    728KB