Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-10-2024 10:32

General

  • Target

    cd278921d2633b1147bca213bc3f2e62fcc8a9ff0eee1d4d80ae93730efe7376N.exe

  • Size

    208KB

  • MD5

    5e557c7efa31a077fbedcab37ddd1620

  • SHA1

    f20153b18069d49ed97def118c5a2e3f1122735f

  • SHA256

    cd278921d2633b1147bca213bc3f2e62fcc8a9ff0eee1d4d80ae93730efe7376

  • SHA512

    c9b66c206fd46141b3074170a14eaadfc6b2e8e61015b7ce20a1be602b28c36cbfe6ae6d235514031f1fc27ecaa9effe13ae4236af9f700bca5636280f80013f

  • SSDEEP

    6144:IOYX27lPBA3YDMw4lj6idlMlwl7/79C87:IwBAy0rlMI5

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\cd278921d2633b1147bca213bc3f2e62fcc8a9ff0eee1d4d80ae93730efe7376N.exe
    "C:\Users\Admin\AppData\Local\Temp\cd278921d2633b1147bca213bc3f2e62fcc8a9ff0eee1d4d80ae93730efe7376N.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:2656
    • 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:2588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\67FE.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\80C4.tmp

    Filesize

    42KB

    MD5

    053453f283e434df10f1614764fefd1d

    SHA1

    2b4722e9bb1e221ebaf447d474dac508035443a3

    SHA256

    3e2fbff306e99a1d59a28c6fce1c482d6f0c8f473bc208392ac0214be0c13953

    SHA512

    4670b1bf955f4ed8ecd916b371e5eefba8997ec409376ff9f3f8d8578b6815161d5d7e8631e80113d1d50d0b2574fd866b7b572fd18aa7f29ebe26d95dbc96e1

  • C:\Users\Admin\AppData\Local\Temp\80C4.tmp

    Filesize

    42KB

    MD5

    84a6c96513e0574a3542ca5215c7b27b

    SHA1

    30286106bc5cd9d875ad81238c76f79b60030a33

    SHA256

    1bd6974bd1f948cf4eb1589c84d7ab26f14c59fa3f684447d6167828c518c88d

    SHA512

    0cd24fbb70391ea41f3c7e0f742e0a288d2d6e40891d29c57d8cec74ac89588dbd6f83ac8942ad7b7d4dc7f8074661532d6f0ffe561704a518df520724704a09

  • \Windows\AppPatch\svchost.exe

    Filesize

    208KB

    MD5

    ae88fcc7c60adcbfdff825cd5e1f3c1c

    SHA1

    1c2777db4f84fe2b1d4c957f99b806ca93e6c01c

    SHA256

    b8c1a428f4d379d38c879ae45637890d5d975b5bcb3354772ada11fb808ea5c0

    SHA512

    782c7171f765d8403f52013db827682bd72a3688a5af70d7d81d167c63ae9effbee0fe3753a394f271d618ffa7a3dc135a28fcf14fbb645d443fa395845d888a

  • memory/2588-66-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-21-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2588-30-0x0000000002640000-0x00000000026E8000-memory.dmp

    Filesize

    672KB

  • memory/2588-17-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2588-64-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-28-0x0000000002640000-0x00000000026E8000-memory.dmp

    Filesize

    672KB

  • memory/2588-26-0x0000000002640000-0x00000000026E8000-memory.dmp

    Filesize

    672KB

  • memory/2588-24-0x0000000002640000-0x00000000026E8000-memory.dmp

    Filesize

    672KB

  • memory/2588-22-0x0000000002640000-0x00000000026E8000-memory.dmp

    Filesize

    672KB

  • memory/2588-32-0x0000000002640000-0x00000000026E8000-memory.dmp

    Filesize

    672KB

  • memory/2588-63-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-34-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-38-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-36-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-49-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-70-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-83-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-82-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-81-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-79-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-77-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-76-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-75-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-74-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-73-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-72-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-71-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-69-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-68-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-67-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-20-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2588-41-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-33-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2588-62-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-61-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-60-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-59-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-58-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-57-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-55-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-54-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-53-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-84-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-52-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-51-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-80-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-78-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-50-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-48-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-65-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-47-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-46-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-45-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-56-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-44-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-43-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-40-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2588-42-0x0000000002870000-0x0000000002926000-memory.dmp

    Filesize

    728KB

  • memory/2656-0-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2656-18-0x0000000000530000-0x0000000000581000-memory.dmp

    Filesize

    324KB

  • memory/2656-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2656-1-0x0000000000530000-0x0000000000581000-memory.dmp

    Filesize

    324KB

  • memory/2656-19-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2656-16-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB