Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 17:39

General

  • Target

    e27bf78aac6a371d7ee7d646712a307356f326fb39950eeb4bb36dc381e7890fN.exe

  • Size

    204KB

  • MD5

    b957813a4f8160d25b479c25507dc230

  • SHA1

    0ea91d6b8d7c4e151401895d0a9e5e48f732ba1e

  • SHA256

    e27bf78aac6a371d7ee7d646712a307356f326fb39950eeb4bb36dc381e7890f

  • SHA512

    5d12123d50f0bc4ebbc4a1a82eed1c46200c7f0123b6ece71f0186eb14ec6d4af5889ac3ae6ca9665e73b161cce70de874274aad1e2dc7a52c0e49dee67782f7

  • SSDEEP

    3072:a5u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlA4:aLexkuRaX41xoyJV65gzyZko+ucZ

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\e27bf78aac6a371d7ee7d646712a307356f326fb39950eeb4bb36dc381e7890fN.exe
    "C:\Users\Admin\AppData\Local\Temp\e27bf78aac6a371d7ee7d646712a307356f326fb39950eeb4bb36dc381e7890fN.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:2824
    • 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:2268

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\AppPatch\svchost.exe

    Filesize

    204KB

    MD5

    f8bda35d1323a98ad3ef3271374642ed

    SHA1

    4c7554117c83cb703a0d42eb1936b87138550f34

    SHA256

    050dfb88a41e76094b523ab261344d433eedc4b1d8e967c67d0d1dc582c951ca

    SHA512

    ec9918c0f7e88af99edf878bbea16c4ebbf57bb00efa44c4698344666c8be9cbecc9578b7b587862ee441c2591c4557376c60c78b91524868ac9bf58f44fe732

  • memory/2268-70-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-60-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-28-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2268-24-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2268-71-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-42-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-16-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2268-43-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-32-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2268-30-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2268-69-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-22-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2268-21-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2268-33-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2268-36-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-38-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-34-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-40-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-55-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-84-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-83-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-81-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-80-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-79-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-78-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-77-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-76-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-75-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-74-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-72-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-41-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2268-26-0x00000000027A0000-0x0000000002848000-memory.dmp

    Filesize

    672KB

  • memory/2268-68-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-67-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-66-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-65-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-64-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-63-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-62-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-61-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-59-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-58-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-57-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-56-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-54-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-53-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-52-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-51-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-50-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-49-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-48-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-47-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-46-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-45-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-82-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-44-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2268-73-0x0000000002950000-0x0000000002A06000-memory.dmp

    Filesize

    728KB

  • memory/2824-20-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2824-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2824-1-0x00000000021D0000-0x0000000002221000-memory.dmp

    Filesize

    324KB

  • memory/2824-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2824-19-0x00000000021D0000-0x0000000002221000-memory.dmp

    Filesize

    324KB

  • memory/2824-18-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB