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Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01/01/2025, 16:48

General

  • Target

    71749a9bee48ccc6ed4b591c3196d37ecceaee473f3e658f14966af5014a5b81.exe

  • Size

    217KB

  • MD5

    9b8cf8ca83f8ef2e4500dc5d5e4e8c5c

  • SHA1

    77200e88a75ac696a6b479c0fcc045743ada4682

  • SHA256

    71749a9bee48ccc6ed4b591c3196d37ecceaee473f3e658f14966af5014a5b81

  • SHA512

    a6498d15fd5e588551a1e027dce45cc942357c59f51428061f47017eed6c8e26fdea75cb3af8ae28ffd9be76f2b715cd22725b8bb897231a41d223894a0bab76

  • SSDEEP

    6144:2rRaTyDOnlo7eM+mlkWgRXOqobzWjozm2ulYM6Y:ksTbzu1glovW4EH6Y

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\71749a9bee48ccc6ed4b591c3196d37ecceaee473f3e658f14966af5014a5b81.exe
    "C:\Users\Admin\AppData\Local\Temp\71749a9bee48ccc6ed4b591c3196d37ecceaee473f3e658f14966af5014a5b81.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:2520
    • 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:1812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\AppPatch\svchost.exe

    Filesize

    217KB

    MD5

    cff6004c293efe11af42c43110069ddc

    SHA1

    2d371e8e4575571dd483190f0bfb41deb3762f66

    SHA256

    71376152da9f717d8eef75e4ffc8bf74b8cf52e9f8337d8eafb222b1fe94eb29

    SHA512

    54e27e0e5ec28b40f00b63bcc9f12dff2f238a79e41d97f56172d17c50f302dc1658b4a964e179dbde312b2e080a10bdb4320253135017f99a8f2bcd537af3d6

  • memory/1812-66-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-63-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-21-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/1812-22-0x00000000023F0000-0x0000000002498000-memory.dmp

    Filesize

    672KB

  • memory/1812-40-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-41-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-57-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-26-0x00000000023F0000-0x0000000002498000-memory.dmp

    Filesize

    672KB

  • memory/1812-30-0x00000000023F0000-0x0000000002498000-memory.dmp

    Filesize

    672KB

  • memory/1812-28-0x00000000023F0000-0x0000000002498000-memory.dmp

    Filesize

    672KB

  • memory/1812-33-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/1812-32-0x00000000023F0000-0x0000000002498000-memory.dmp

    Filesize

    672KB

  • memory/1812-24-0x00000000023F0000-0x0000000002498000-memory.dmp

    Filesize

    672KB

  • memory/1812-36-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-38-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-34-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-44-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-80-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-83-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-82-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-81-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-79-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-78-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-77-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-76-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-75-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-73-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-72-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-71-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-69-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-20-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/1812-67-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-55-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-18-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/1812-62-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-61-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-60-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-59-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-58-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-56-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-64-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-54-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-53-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-52-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-51-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-50-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-49-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-48-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-47-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-46-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-45-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-84-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-74-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-70-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-43-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-68-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-65-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/1812-42-0x00000000025F0000-0x00000000026A6000-memory.dmp

    Filesize

    728KB

  • memory/2520-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2520-1-0x0000000001D70000-0x0000000001DC1000-memory.dmp

    Filesize

    324KB

  • memory/2520-0-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2520-19-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2520-16-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2520-17-0x0000000001D70000-0x0000000001DC1000-memory.dmp

    Filesize

    324KB