Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2024 01:49

General

  • Target

    a01d2dc5c6b9102ebd980dfa098ee3570deb263c0b9de8ee286352f21f058692.exe

  • Size

    355KB

  • MD5

    7c23aa408c7f3d69d4e2cd9cb761c391

  • SHA1

    f388c851f53c44756fab44dfeb714f04bbc9648e

  • SHA256

    a01d2dc5c6b9102ebd980dfa098ee3570deb263c0b9de8ee286352f21f058692

  • SHA512

    4d6cf62aafc615ea78027ac7dc5e3def3392d0bab4f0997c8ea5416730e34b546abcc1b6e161d4b11b704aabbe0e89af9b85bea5a102be8992e42dfcd661a961

  • SSDEEP

    6144:KgEmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9Ei:MmWhND9yJz+b1FcMLmp2ATTSsd

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\a01d2dc5c6b9102ebd980dfa098ee3570deb263c0b9de8ee286352f21f058692.exe
    "C:\Users\Admin\AppData\Local\Temp\a01d2dc5c6b9102ebd980dfa098ee3570deb263c0b9de8ee286352f21f058692.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:2200
    • 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:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\HHT5LGG0\login[4].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\161F.tmp

    Filesize

    42KB

    MD5

    a6cb2837b222e925ce6f57d33fc9091f

    SHA1

    e1223dfcb29d899ab7df649c4eea84a9849c1f9c

    SHA256

    8c707d17f1f2b96a51d26ecf4e73034866502fe90cb31e1e28981c9fb69fa39f

    SHA512

    41892af0226ed5498913178d5f7c838a0b292d246658a6b6a90c27f84104b8cc04b1d79485924b37e792e7f33d896e78704ca3cb2dcdeef34a71fa66a1e2eeef

  • C:\Users\Admin\AppData\Local\Temp\161F.tmp

    Filesize

    42KB

    MD5

    1df65a5f0cf00f8b1a50ac4c35c0026b

    SHA1

    48ce20f96e3b28d016fe31a026c9a704ac9e89b0

    SHA256

    cdfcd9ed670504ec0e4b5e7939f127a99f255ad4952900d195e5cf26b4c01f3e

    SHA512

    9ec219f170e1a838e1996549fcb5431dded3ae0e504676f6aa8ec075e14a95dd820a20494a0eba9c3380c3f5928fcb0fefe5f58fac0aea174a37651a21458163

  • C:\Users\Admin\AppData\Local\Temp\4FD7.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\880B.tmp

    Filesize

    1KB

    MD5

    8780f45d803edbb405095668eaa0e72c

    SHA1

    13016fb1e21c49ee669a58e8e2ec670b00a1bade

    SHA256

    7e48294077399196597776c3f706160fa8573d518f6d23afc7bf77b278031a7d

    SHA512

    ae839e9c1f303f2456eb097fa06e7fab304476944abd3b9ee22cc137b3947a231d8514b1af02887255dcabddece5c0277fa281e94814a5d76a667ca17db1efbc

  • \Windows\AppPatch\svchost.exe

    Filesize

    355KB

    MD5

    27b857aabc403ee07f17997d7259e1af

    SHA1

    348e74a15bf5ebb4e334b5ac8036a3e9a591e866

    SHA256

    de7c90d1c2fd62ea3596a51e4fcc235e3403613b5b637d041158cd6e51810d56

    SHA512

    b1b494dc807faa38e8d8f0482263ac19b76f4930a6329399836f3bf4593396a5edaa47c3a57465decc5043621096efa961920a682616068525ed7eb83512f620

  • memory/2200-12-0x0000000000190000-0x00000000001EF000-memory.dmp

    Filesize

    380KB

  • memory/2648-64-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-25-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-24-0x0000000002020000-0x00000000020C8000-memory.dmp

    Filesize

    672KB

  • memory/2648-22-0x0000000002020000-0x00000000020C8000-memory.dmp

    Filesize

    672KB

  • memory/2648-20-0x0000000002020000-0x00000000020C8000-memory.dmp

    Filesize

    672KB

  • memory/2648-18-0x0000000002020000-0x00000000020C8000-memory.dmp

    Filesize

    672KB

  • memory/2648-60-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-29-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-27-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-33-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-36-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-45-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-70-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-77-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-76-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-75-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-74-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-73-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-72-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-59-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-69-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-68-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-67-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-66-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-65-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-14-0x0000000002020000-0x00000000020C8000-memory.dmp

    Filesize

    672KB

  • memory/2648-63-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-62-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-61-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-16-0x0000000002020000-0x00000000020C8000-memory.dmp

    Filesize

    672KB

  • memory/2648-71-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-58-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-57-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-56-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-55-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-54-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-53-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-52-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-51-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-50-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-49-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-48-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-47-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-46-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-44-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-43-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-42-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-41-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-40-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-39-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-37-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-31-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-35-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-34-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-38-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-32-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB

  • memory/2648-297-0x0000000002440000-0x00000000024F6000-memory.dmp

    Filesize

    728KB