Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 19:48

General

  • Target

    a35bb80a76bf8cc720b04c06e92fe43117ecd5f45ae885feae7ec02ac7123782.exe

  • Size

    218KB

  • MD5

    b2a2ec5cda547f4f486f28f0da36e04f

  • SHA1

    92d131ecb12bc201b40d80b0e7b078f04594bc1d

  • SHA256

    a35bb80a76bf8cc720b04c06e92fe43117ecd5f45ae885feae7ec02ac7123782

  • SHA512

    8d1dff2d734d1dc2375bbaa9e0552d2c8da83897de68190cef71c5cd4e790293b74c7f8edf226a592fb01951420350e8334c1ec1bab96778615ec25e072dda18

  • SSDEEP

    3072:Ovm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:Q1SyAJp6rjn1gOObn4b6h9h

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\a35bb80a76bf8cc720b04c06e92fe43117ecd5f45ae885feae7ec02ac7123782.exe
    "C:\Users\Admin\AppData\Local\Temp\a35bb80a76bf8cc720b04c06e92fe43117ecd5f45ae885feae7ec02ac7123782.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:2772
    • 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:2680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\D4B3.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\EC0A.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    a8f14dc6b8c96dc628c6f443e6684051

    SHA1

    ff52fc907487745558496dbdf1847c3747fbba4e

    SHA256

    8ad76e20c388526ed23e0c2f8099669757276aefda2b640480f7ea7c372b7bb9

    SHA512

    dff48922b0b0cfdc3040cc6450df2d84570c92ae02443d5b1e4efbabfcfe274d8eedd85b3478334d6af12218046a5baaa390f6ba0af4629e9551abf0b6bc18db

  • memory/2680-61-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-35-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-60-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2680-26-0x00000000021E0000-0x0000000002288000-memory.dmp

    Filesize

    672KB

  • memory/2680-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2680-24-0x00000000021E0000-0x0000000002288000-memory.dmp

    Filesize

    672KB

  • memory/2680-28-0x00000000021E0000-0x0000000002288000-memory.dmp

    Filesize

    672KB

  • memory/2680-20-0x00000000021E0000-0x0000000002288000-memory.dmp

    Filesize

    672KB

  • memory/2680-32-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-56-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-36-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-54-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-55-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-85-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-83-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-82-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-81-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-79-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-77-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-76-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-74-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-72-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-71-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-69-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-68-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-66-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-65-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-63-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-22-0x00000000021E0000-0x0000000002288000-memory.dmp

    Filesize

    672KB

  • memory/2680-58-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-19-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2680-30-0x00000000021E0000-0x0000000002288000-memory.dmp

    Filesize

    672KB

  • memory/2680-53-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-51-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-50-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-48-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-46-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-45-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-43-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-38-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-80-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-78-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-75-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-73-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-70-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-67-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-64-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-62-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-59-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-57-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-52-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-49-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-47-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-44-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-42-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-41-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-40-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2680-39-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2772-15-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/2772-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2772-0-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/2772-16-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2772-14-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB