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Analysis

  • max time kernel
    114s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/01/2025, 16:03

General

  • Target

    45ba15303dd96b4524e85152812d5309ca8d8156333fe826033a9f84b6f699ec.exe

  • Size

    218KB

  • MD5

    05ea4f94972a70eb45a9e2f492c21bbd

  • SHA1

    4579fad77d7a09f2ffde817f3076fb17d59aee68

  • SHA256

    45ba15303dd96b4524e85152812d5309ca8d8156333fe826033a9f84b6f699ec

  • SHA512

    899e37b6958bee2fa756524587cede3c927e2c3c3c73e786bdc213ba020917e395cdf905f8f75c79703f97af5698746f277041e5d770e407694574c7af079c06

  • SSDEEP

    3072:xvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2Hu:11SyAJp6rjn1gOObn4b6h9L

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
  • 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45ba15303dd96b4524e85152812d5309ca8d8156333fe826033a9f84b6f699ec.exe
    "C:\Users\Admin\AppData\Local\Temp\45ba15303dd96b4524e85152812d5309ca8d8156333fe826033a9f84b6f699ec.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1032
    • 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:3436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AFF1.tmp

    Filesize

    481B

    MD5

    b5ad4d5684d0fa78327f593f323a7d01

    SHA1

    7aae272d23a58da909d99a2a410d09e5628959ce

    SHA256

    bb54c087fdadcac059512d62b2aabba9cbc64bf2d5e0d0d466dec2024b401178

    SHA512

    f0ccb2706e184f6e37dd84ac4e0029863bb6715bbddfa5c0ca157de04e3e3047e7ccc252ac28649f4518b20fce6cdc30f79287b71e4f589ebf4f27a2bafb46a1

  • C:\Windows\apppatch\svchost.exe

    Filesize

    218KB

    MD5

    5cdfc08882b128d7c9c33b7ca078a4a9

    SHA1

    7f40880d526fa87d56694a29134d1ea43d4b753e

    SHA256

    fd4474c636166542ed75220322007b8b5c63ccadf7ecf174e7a45d22064b3e36

    SHA512

    47d4da3d3fd996a8beb3a3ac1e1d5150ff0753d1a8278c53ac693aa62e12d915bfbc42861ba1b657fec7e0087fc231469023d6e87caf3e0b601791b269804cae

  • memory/1032-0-0x0000000000750000-0x00000000007A1000-memory.dmp

    Filesize

    324KB

  • memory/1032-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1032-13-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1032-12-0x0000000000750000-0x00000000007A1000-memory.dmp

    Filesize

    324KB

  • memory/1032-11-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/3436-14-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/3436-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/3436-16-0x00000000028D0000-0x0000000002978000-memory.dmp

    Filesize

    672KB

  • memory/3436-17-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/3436-22-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-20-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-18-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-23-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-79-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-78-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-76-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-75-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-74-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-73-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-72-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-71-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-70-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-69-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-68-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-67-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-66-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-65-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-64-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-63-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-62-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-60-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-59-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-58-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-57-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-56-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-55-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-54-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-53-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-52-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-51-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-50-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-49-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-48-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-47-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-45-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-44-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-43-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-42-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-41-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-40-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-39-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-38-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-37-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-36-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-35-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-34-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-33-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-31-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-30-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-29-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-28-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-27-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-25-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-24-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-77-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-61-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-46-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-32-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/3436-26-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB