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Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/01/2025, 15:10

General

  • Target

    81e353b4d4ed5f98e196b4b20efaeb2a3669a903e8dd0f5c6ccfac2c4b78f104N.exe

  • Size

    208KB

  • MD5

    e72b8c9c6aa8e2f3281993922e263dd0

  • SHA1

    203944333681cb9b53bc16f20f8978df78891abb

  • SHA256

    81e353b4d4ed5f98e196b4b20efaeb2a3669a903e8dd0f5c6ccfac2c4b78f104

  • SHA512

    183f7590acac3e54beda47cabdb73b6ec9c9af2cdba1dac0a3ac606dce4e88a579c22e7827d017141f2395879d9236cea4c96726143d237c0da8ea4d22f34a29

  • SSDEEP

    6144:3ZWia9ubuBsyGvMwlvaB8Mi5vz9IGePA+hq5O:pquCuygMQjd5vJIBP1T

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

  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in Program Files directory 11 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81e353b4d4ed5f98e196b4b20efaeb2a3669a903e8dd0f5c6ccfac2c4b78f104N.exe
    "C:\Users\Admin\AppData\Local\Temp\81e353b4d4ed5f98e196b4b20efaeb2a3669a903e8dd0f5c6ccfac2c4b78f104N.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4184
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Low\IE\6JWMI8L3\login[1].htm

    Filesize

    168B

    MD5

    d57e3a550060f85d44a175139ea23021

    SHA1

    2c5cb3428a322c9709a34d04dd86fe7628f8f0a6

    SHA256

    43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c

    SHA512

    0364fe6a010fce7a3f4a6344c84468c64b20fd131f3160fc649db78f1075ba52d8a1c4496e50dbe27c357e01ee52e94cdcda8f7927cba28d5f2f45b9da690063

  • C:\Windows\apppatch\svchost.exe

    Filesize

    208KB

    MD5

    63e10fe35aa9afae351c4bf5101ea4f6

    SHA1

    916f54f87e78b8ee82bef19cffe8c518f3238d73

    SHA256

    d8eacb2ece9c8597366f9bdff38e90922075975f96710067441518c942d9014e

    SHA512

    f226c62c51386398bcbc911e6d49f2742451a09d4c4ad44fb2c1f28a6613e3173f9f12822b215c0a81f0c0c3f0c2ae6a864ed98005bcbab65d92cb400826ad32

  • memory/2436-60-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-57-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-20-0x0000000002470000-0x000000000251A000-memory.dmp

    Filesize

    680KB

  • memory/2436-14-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/2436-27-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-32-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-42-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-21-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/2436-22-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-26-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-24-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-48-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-50-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-81-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-80-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-79-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-78-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-77-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-76-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-75-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-74-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-73-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-71-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-70-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-69-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-68-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-67-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-66-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-65-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-64-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-63-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-62-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-15-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/2436-56-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-19-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/2436-58-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-59-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-55-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-54-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-53-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-52-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-51-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-49-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-47-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-46-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-45-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-44-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-43-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-40-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-41-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-38-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-39-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-37-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-35-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-36-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-34-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-33-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-31-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-30-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-29-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-28-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-72-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/2436-61-0x0000000002C40000-0x0000000002CF7000-memory.dmp

    Filesize

    732KB

  • memory/4184-17-0x0000000002100000-0x0000000002152000-memory.dmp

    Filesize

    328KB

  • memory/4184-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4184-1-0x0000000002100000-0x0000000002152000-memory.dmp

    Filesize

    328KB

  • memory/4184-0-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/4184-18-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4184-16-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB