Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21-12-2024 23:42

General

  • Target

    2d228c7125f85f6ebbf71bdedef3d325599b1afd3ac3173bfe68c11b6d9fe315.exe

  • Size

    375KB

  • MD5

    22888d51829500fed79573f8f60b23f3

  • SHA1

    c90f080b998eaffc40ef91d7b0a2205cfd65c3cf

  • SHA256

    2d228c7125f85f6ebbf71bdedef3d325599b1afd3ac3173bfe68c11b6d9fe315

  • SHA512

    7ee61e953077f4ec07130d1a34cae6c7f04b92caee4df50aeb97e32b9adbb60ff89cb96d0fb01d996b7891e9dc1be52ae4f66d5c9e2324163aa4f60103b324d8

  • SSDEEP

    6144:N3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9Eis:imWhND9yJz+b1FcMLmp2ATTSsds

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\2d228c7125f85f6ebbf71bdedef3d325599b1afd3ac3173bfe68c11b6d9fe315.exe
    "C:\Users\Admin\AppData\Local\Temp\2d228c7125f85f6ebbf71bdedef3d325599b1afd3ac3173bfe68c11b6d9fe315.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:2376
    • 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:3028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\AS91FDNI\login[2].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\1ECB.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\31C1.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • \Windows\AppPatch\svchost.exe

    Filesize

    375KB

    MD5

    155aed2f9249ea9746ca5afc15211c0e

    SHA1

    5544e73d3f5828dd6aea5d466a7690c40830ee7c

    SHA256

    62f8f97f15d5abc10f5b06888a7916a1b4489e17ddfb751f3661d9f8c6fa04c2

    SHA512

    67132ac5bfd1b3e53e7cbc752671abc380c1d5f328aaddbf1336a2828852746bc1c25c5d3de6953400d8a0fbc3d270db38243d9512dadaa419f1e299776f03a7

  • memory/2376-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2376-8-0x00000000021A0000-0x0000000002204000-memory.dmp

    Filesize

    400KB

  • memory/2376-15-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/3028-17-0x0000000001FF0000-0x0000000002098000-memory.dmp

    Filesize

    672KB

  • memory/3028-26-0x0000000001FF0000-0x0000000002098000-memory.dmp

    Filesize

    672KB

  • memory/3028-28-0x0000000001FF0000-0x0000000002098000-memory.dmp

    Filesize

    672KB

  • memory/3028-24-0x0000000001FF0000-0x0000000002098000-memory.dmp

    Filesize

    672KB

  • memory/3028-22-0x0000000001FF0000-0x0000000002098000-memory.dmp

    Filesize

    672KB

  • memory/3028-21-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/3028-19-0x0000000001FF0000-0x0000000002098000-memory.dmp

    Filesize

    672KB

  • memory/3028-31-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-32-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-34-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-43-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-56-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-68-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-82-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-81-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-80-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-79-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-78-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-77-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-76-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-75-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-74-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-73-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-72-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-71-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-70-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-67-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-69-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-66-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-65-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-64-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-63-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-62-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-61-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-60-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-59-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-58-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-57-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-55-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-54-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-53-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-52-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-51-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-50-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-49-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-48-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-47-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-46-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-45-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-44-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-42-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-41-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-36-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-40-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-39-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-38-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-37-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB

  • memory/3028-193-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/3028-194-0x00000000024B0000-0x0000000002566000-memory.dmp

    Filesize

    728KB